3 # Copyright (C) 2019 Ian Kelling
4 # SPDX-License-Identifier: AGPL-3.0-or-later
6 # Things I tend to forget. on MAIL_HOST, daemon runs with /etc/exim4/my.conf,
7 # due to /etc/default/exim4 containing:
8 # COMMONOPTIONS='-C /etc/exim4/my.conf'
9 # UPEX4OPTS='-o /etc/exim4/my.conf'
11 # The non-daemon config
12 # gets generated from this script calling update-exim4.conf -d /etc/myexim4
14 # log_file_path = /var/log/exim4/my%s
16 # On non bk|MAIL_HOST, the config and log file are all standard.
18 # eximbackup folder is /bu/md
19 # it is cleaned up by mail-backup-clean, which is run by btrbk-run
21 # shellcheck disable=SC2254 # makes for a lot of unneeded quotes
24 # perusing through /el/mainlog without test messages:
25 # &!testignore|jtuttle|
27 #&! testignore|jtuttle|eximbackup|/usr/sbin/exim4 -bpu
29 # todo: this message seems to get dropped on the floor, it was due to a missing 2nd colon in
30 # condition = ${if def:h_fdate:}
31 # Figure out how to avoid this message being discarded.
33 # 2023-09-12 01:41:43 [722371] 1qfw9f-0031v9-0S <= ian@iankelling.org U=iank P=local S=483 id=87cyyogd7t.fsf@iankelling.org T="iank2" from <ian@iankelling.org> for testignore@amnimal.ninja
34 # 2023-09-12 01:41:43 [722373] 1qfw9f-0031v9-0S H=nn.b8.nz [10.173.8.2]: SMTP error from remote mail server after pipelined end of data: 451 Temporary local problem - please try later
35 # 2023-09-12 01:41:43 [722372] 1qfw9f-0031v9-0S == testignore@amnimal.ninja R=smarthost T=remote_smtp_smarthost defer (-46) H=nn.b8.nz [10.173.8.2] DT=0s: SMTP error from remote mail server after pipelined end of data: 451 Temporary local problem - please try later
37 # todo: check new macro DKIM_TIMESTAMPS
39 # todo: check if REMOTE_SMTP_INTERFACE or REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE can simplify my or fsfs config
41 # todo: max line length macro changed in t11. look into it
42 # todo: check that all macros we use are still valid in t11
44 # todo: setup an alert for bouncing test emails.
46 # todo: bounces to my fsf mail can come from fsf@iankelling.org,
47 # think about making bounces go from the original address.
49 # todo: add a prometheus alert for dovecot.
51 # todo: handle errors like this:
52 # Mar 02 12:44:26 kw systemd[1]: exim4.service: Found left-over process 68210 (exim4) in control group while starting unit. Ignoring.
53 # Mar 02 12:44:26 kw systemd[1]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
54 #eg: on eggs, on may 1st, ps grep for exim, 2 daemons running. 1 leftover from a month ago
55 #Debian-+ 1954 1 0 36231 11560 4 Apr02 ? 00:40:25 /usr/sbin/exim4 -bd -q30m
56 #Debian-+ 23058 1954 0 36821 10564 0 20:38 ? 00:00:00 /usr/sbin/exim4 -bd -q30m
58 # todo: harden dovecot. need to do some research. one way is for it to only listen on a wireguard vpn interface, so only clients that are on the vpn can access it.
59 # todo: consider hardening cups listening on 0.0.0.0
60 # todo: stop/disable local apache, and rpc.mountd, and kdeconnect when not in use.
62 # todo: hosts should only allow external mail that is authed and
63 # destined for backup route. it is a minor issue since traffic is
64 # limited to the wghole network.
66 # todo: emailing info@amnimal.ninja produces a bounce, user doesn't exist
67 # instead of a simple rejection like it should.
69 # todo: run mailping test after running, or otherwise
70 # clear out terminal alert
72 # todo: disable postgrey
74 # todo: in testforward-check, we should also look
76 # todo: test that bounces dont help create valid mailtest-check
78 # todo: move mail stuff in distro-end into this file
80 # todo: consider rotating dkim & publishing key so every past email I sent
81 # isnt necessarily signed
83 # todo: consider how to get clamav out of Debian-exim group
84 # so it cant read/write the whole mail spool, for better
87 # todo: create a cronjob to update or warn on expiring dnssec keys
89 # todo: we should test failed mail daily or so
90 # failed cronjob, failed sysd-log-once,
91 # a local bounce from a cronjob, a local bounce
92 # to a bad remote address, perhaps a local failure
93 # when the sending daemon is down.
94 # And send an alert email if no alerts have been sent
95 # in 2 or 3 days or something. todo, test cron mail on li.
97 # todo: look at mailinabox extra dns records, note these changelogs:
98 # - An MTA-STS policy for incoming mail is now published (in DNS and over HTTPS) when the primary hostname and email address domain both have a signed TLS certificate installed, allowing senders to know that an encrypted connection should be enforced.
99 # - The per-IP connection limit to the IMAP server has been doubled to allow more devices to connect at once, especially with multiple users behind a NAT.
102 # todo: mailtest-check failure on remote hosts is not going to alert me.
104 # todo: test mail failure as well as success.
106 # todo: validate that mailtest-check is doing dnsbl checks.
108 # background: I want to run exim in a network namespace so it can send
109 # and receive through a vpn. This is needed so it can do ipv6, because
110 # outside the namespace if we dont have ipv6, to send ipv6 through the
111 # vpn, we have to send all our ipv6 through the vpn. I did this for a
112 # long time, it was fine, but it causes various pains, like increased
113 # latency, increased recaptcha because my ip is from a data center, just
114 # various issues I dont want on all the time. The problem with the
115 # namespace is that all kinds of programs want to invoke exim, but they
116 # wont be in the namespace. I could replace exim with a wrapper that
117 # jumps into the namespace, i tried that, it works fine. One remaining
118 # problem was that I would have needed to hook into exim upgrades to
119 # move exim and replace it with my wrapper script. Also, my script to
120 # join the namespace is not super reliable because it uses a pgrep.
121 # Instead, I should have created a systemd service for a process that
122 # will never die and just writes its pid somewhere convenient.
123 # That implementation
127 # user ALL=(ALL) /usr/sbin/exim4
129 # move exim4 to eximian, use this script for exim4:
132 # if ip a show veth1-mail &>/dev/null; then
133 # /usr/sbin/eximian "$@"
137 # if [[ $USER && $USER != root ]]; then
140 # pid=$(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf")
142 # sudo nsenter -t $pid -n -m sudo -u $USER /usr/sbin/eximian "$@"
144 # nsenter -t $pid -n -m /usr/sbin/eximian "$@"
148 # an alternate solution: there is a small setguid program for
149 # network namespaces in my bookmarks.
151 # However, the solution I went with is: have 2 exim
152 # configs. A nonstandard location for the daemon that runs
153 # in the namespace. For all other invocations, it uses
154 # the default config location, which is altered to be
155 # in a smarthost config which sends mail to the deaemon.
157 # I have a bash function, enn to invoke exim like the daemon is running.
158 # and mailbash to just enter its network namespace.
160 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
164 if [[ -s /usr
/local
/lib
/err
]]; then
165 source /usr
/local
/lib
/err
166 elif [[ -s /a
/bin
/errhandle
/err
]]; then
167 source /a
/bin
/errhandle
/err
169 echo "no err tracing script found"
172 source /a
/bin
/distro-functions
/src
/identify-distros
173 source /a
/bin
/distro-functions
/src
/package-manager-abstractions
175 # has nextcloud_admin_pass in it
176 f
=/p
/c
/machine_specific
/$HOSTNAME/mail
178 # shellcheck source=/p/c/machine_specific/bk/mail
183 [[ $EUID == 0 ]] ||
exec sudo
-E "${BASH_SOURCE[0]}" "$@"
185 # note, this is hardcoded in /etc/exim4/conf.d/main/000_local
191 Usage: ${0##*/} anything_here_to_debug
192 Setup exim4 & dovecot & related things
194 -h|--help Print help and exit.
199 # debug output if we pass any arg
205 ####### instructions for icedove #####
206 # Incoming mail server: mail.iankelling.org, port 143, username iank, connection security starttls, authentication method normal password,
207 # then click advanced so it accepts it.
208 # we could also just use 127.0.0.1 with no ssl
210 # hamburger -> preferences -> preferences -> advanced tab -> config editor button -> security.ssl.enable_ocsp_must_staple = false
211 # background: dovecot does not yet have ocsp stapling support
212 # reference: https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921
214 # for phone, k9mail, fdroid, same thing but username alerts, pass in ivy-pass.
215 # also, bk.b8.nz for secondary alerts, username is iank. same alerts pass.
216 # fetching mail settings: folder poll frequency 10 minutes.
217 # account settings, fetching mail, push folders: All. Then disable the persistent notification.
221 # * perstent password instructions
222 # Note: for cert cron, we need to manually run first to accept known_hosts
225 # # for hosts which have all private files I just use the same user
226 # # for other hosts, each one get\'s their own password.
227 # # for generating secure pass, and storing for server too:
230 # apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f
231 # s sed -i "/^$host:/d" /p/c/filesystem/etc/exim4/passwd
232 # echo "$host:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd
233 # #reference: exim4_passwd_client(5)
234 # dir=/p/c/machine_specific/$host/filesystem/etc/exim4
236 # echo "mail.iankelling.org:$host:$(<$f)" > $dir/passwd.client
237 # # then run this script
239 # # dovecot password, i just need 1 as I\'m the only user
240 # mkdir /p/c/filesystem/etc/dovecot
241 # echo "iank:$(doveadm pw -s SHA512-CRYPT)::::::" >>/p/c/filesystem/etc/dovecot/users
243 ####### end perstent password instructions ######
247 # # Remove 1 level of comments in this section, set the domain var
248 # # for the domain you are setting up, then run this and copy dns settings
250 # domain=iankelling.org
251 # c /p/c/filesystem/etc/exim4
252 # # this has several bugs addressed in comments, but it was helpful
253 # # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
255 # openssl genrsa -out $domain-private.pem 2048
256 # # Then, to get the public key strings to put in bind:
258 # # selector is needed for having multiple keys for one domain.
259 # # I dun do that, so just use a static one: li
260 # # Debadmin page does not have v=, fastmail does, and this
261 # # says it\'s recommended in 3.6.1, default is DKIM1 anyways.
262 # # https://www.ietf.org/rfc/rfc6376.txt
263 # # Join and print all but first and last line.
264 # # last line: swap hold & pattern, remove newlines, print.
265 # # lines 2+: append to hold space
266 # echo "bind txt record: remember to truncate $domain so its relative to the bind zone"
268 # a._domainkey.$domain TXT (
269 # "v=DKIM1\059 k=rsa\059 p=$(openssl rsa -in $domain-private.pem -pubout |&sed -rn '${x;s/\n//g;s/^(.*)(.{240}$)/\1"\n"\2/p};3,$H')" )
271 # # sed explanation: skip the first few lines, then put them into the hold space, then
272 # # on the last line, back to the patern space, remove the newlines, then add a newline
273 # # at the last char - 240, because bind txt records need strings <=255 chars,
274 # # other dkim stuff at the begining is is 25 chars, and the pubkey is 393, so this
275 # # leaves us a bit of extra room at the end and a bunch at the beginning.
277 # # selector was also put into /etc/exim4/conf.d/main/000_local,
281 # # 2017-02 dmarc policies:
282 # # host -t txt _dmarc.gmail.com
283 # # yahoo: p=reject, hotmail: p=none, gmail: p=none, fastmail none for legacy reasons
284 # # there were articles claiming gmail would be changing
285 # # to p=reject, in early 2017, which didn\'t happen. I see no sources on them. It\'s
286 # # expected to cause problems
287 # # with a few old mailing lists, copying theirs for now.
289 # echo "dmarc dns, name: _dmarc value: v=DMARC1; p=none; rua=mailto:mailauth-reports@$domain"
293 # # 2017-02 spf policies:
294 # # host -t txt lists.fedoraproject.org
295 # # google ~all, hotmail ~all, yahoo: ?all, fastmail ?all, outlook ~all
296 # # i include fastmail\'s settings, per their instructions,
297 # # and follow their policy. In mail in a box, or similar instructions,
298 # # I\'ve seen recommended to not use a restrictive policy.
300 # # to check if dns has updated, you do
301 # host -a mesmtp._domainkey.$domain
304 # # setting it to iankelling.org would work the same, but this
305 # # is more flexible, I could change where mail.iankelling.org pointed.
307 # mx records, 2 records each, for * and empty domain
308 # pri 10 mail.iankelling.org
312 # from brc2, run dnsecgen then dsign, update named.local.conf, publish keys to registrar
314 # * functions & constants
316 pre
="${0##*/}:${SSH_CLIENT:+ $HOSTNAME:}"
317 m
() { printf "$pre %s\n" "$*"; "$@"; }
318 e
() { printf "$pre %s\n" "$*"; }
319 err
() { printf "$pre %s\n" "$*" >&2; exit 1; }
322 # This file is so if we fail in the middle and rerun, we dont lose state
323 if [[ -e /var
/local
/mail-setup-reload
]]; then
326 u
() { # update file. note: duplicated in brc
327 local tmp tmpdir dest
="$1"
328 local base
="${dest##*/}"
329 local dir
="${dest%/*}"
330 if [[ $dir != "$base" ]]; then
331 # dest has a directory component
337 tmp
=$
(rsync
-ic $tmpdir/"$base" "$dest")
341 if [[ $dest == /etc
/systemd
/system
/* ]]; then
342 touch /var
/local
/mail-setup-reload
349 key
="$1" value
="$2" section
="$3"
350 file="/etc/radicale/config"
351 sed -ri "/ *\[$section\]/,/^ *\[[^]]+\]/{/^\s*${key}[[:space:]=]/d};/ *\[$section\]/a $key = $value" "$file"
355 # ignore services that dont exist
356 if systemctl
cat $service &>/dev
/null
; then
357 m systemctl disable
--now $service
364 m systemctl restart
$service
365 # Optimization for exim,
366 # is-enabled: 0m0.015s
368 # It is related to this message:
369 # exim4.service is not a native service, redirecting to systemd-sysv-install.
370 # Executing: /lib/systemd/systemd-sysv-install enable exim4
371 enabled
=$
(systemctl is-enabled
$service 2>/dev
/null ||
:)
372 if [[ $enabled != enabled
]]; then
373 m systemctl
enable $service
378 [[ $HOSTNAME == "$MAIL_HOST" ]]
380 e
() { printf "%s\n" "$*"; }
383 if systemctl is-active
$service >/dev
/null
; then
384 m systemctl restart
$service
390 if systemctl is-active
$service >/dev
/null
; then
391 m systemctl stop
$service
396 mxhost
=mx.iankelling.org
399 # old setup. left as comment for example
400 # mxhost=mail.messagingengine.com
402 # forward=ian@iankelling.org
404 smarthost
="$mxhost::$mxport"
405 uhome
=$
(eval echo ~
$u)
407 # Somehow on one machine, a file got written with 664 perms.
408 # just being defensive here.
411 source /a
/bin
/bash_unpublished
/source-state
412 if [[ ! $MAIL_HOST ]]; then
413 err
"\$MAIL_HOST not set"
419 kd|frodo|x2|x3|kw|sy|bo
)
425 # * Install universal packages
428 # installs epanicclean iptables-exim ip6tables-exim
429 /a
/bin
/ds
/install-my-scripts
431 if [[ $
(debian-codename-compat
) == bionic
]]; then
432 cat >/etc
/apt
/preferences.d
/spamassassin
<<'EOF'
433 Package: spamassassin sa-compile spamc
434 Pin: release n=focal,o=Ubuntu
439 # light version of exim does not have sasl auth support.
440 # note: for bitfolk hosts, unbound has important config with conflink.
441 pi-nostart exim4 exim4-daemon-heavy spamassassin unbound clamav-daemon wireguard
443 # note: pyzor debian readme says you need to run some initialization command
445 pi spf-tools-perl p0f postgrey pyzor razor jq moreutils certbot fail2ban
448 # not included due to using wireguard: openvpn
449 *) pi wget git
unzip iptables
;;
451 # bad packages that sometimes get automatically installed
452 pu openresolv resolvconf
457 if [[ $
(debian-codename
) == etiona
]]; then
458 # ip6tables stopped loading on boot. openvpn has reduced capability set,
459 # so running iptables as part of openvpn startup wont work. This should do it.
460 pi iptables-persistent
461 cat >/etc
/iptables
/rules.v6
<<'EOF'
468 m ip6tables
-S >/dev
/null
471 # our nostart pi fails to avoid enabling
474 # * Mail clean cronjob
476 u
/etc
/systemd
/system
/mailclean.timer
<<'EOF'
478 Description=Run mailclean daily
484 WantedBy=timers.target
487 u
/etc
/systemd
/system
/mailclean.service
<<EOF
489 Description=Delete and archive old mail files
490 After=multi-user.target
495 ExecStart=/usr/local/bin/sysd-mail-once mailclean /a/bin/distro-setup/mailclean
501 u
/etc
/default
/postgrey
<<'EOF'
502 POSTGREY_OPTS="--exim --unix=/var/run/postgrey/postgrey.sock --retry-window=4 --max-age=60"
507 # old file. remove when all hosts updated, 2023-09-11
508 rm -fv /etc
/exim
4/conf.d
/clamav_data_acl
510 m usermod
-a -G Debian-exim clamav
512 u
/etc
/systemd
/system
/clamav-daemon.service.d
/fix.conf
<<EOF
514 ExecStartPre=-/bin/mkdir -p /var/run/clamav
515 ExecStartPre=/bin/chown clamav /var/run/clamav
521 #vpnser=mailvpn.service
522 # note: this hangs if it cant resolv the endpoint. we
523 # want it to just retry in the background. i just use a static ip instead.
525 # Note: at least on t10, on reboot, the service fails to come up according to systemd, but
526 # in reality it is up and working, then it tries to restart infinitely, and fails
527 # because it detects that the interface exists.
531 # Aug 02 21:59:27 sy wg-quick[2092]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
532 # Aug 02 21:59:27 sy wg-quick[2248]: [#] iptables-restore -n
533 # Aug 02 21:59:27 sy wg-quick[2249]: Another app is currently holding the xtables lock. Perhaps you want to use the -w option?
534 # Aug 02 21:59:27 sy wg-quick[2259]: [#] iptables-restore -n
535 # Aug 02 21:59:27 sy wg-quick[2260]: Another app is currently holding the xtables lock. Perhaps you want to use the -w option?
536 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=4/NOPERMISSION
540 # Aug 03 14:12:47 sy wg-quick[711336]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
541 # Aug 03 14:12:47 sy wg-quick[711384]: [#] iptables-restore -n
542 # Aug 03 14:12:47 sy wg-quick[711336]: [#] ping -w10 -c1 10.8.0.1 ||:
543 # Aug 03 14:12:47 sy wg-quick[711389]: PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
544 # Aug 03 14:12:47 sy wg-quick[711389]: 64 bytes from 10.8.0.1: icmp_seq=1 ttl=64 time=73.0 ms
545 # Aug 03 14:12:47 sy wg-quick[711389]: --- 10.8.0.1 ping statistics ---
546 # Aug 03 14:12:47 sy wg-quick[711389]: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
547 # Aug 03 14:12:47 sy wg-quick[711389]: rtt min/avg/max/mdev = 72.993/72.993/72.993/0.000 ms
548 # Aug 03 14:12:47 sy systemd[1]: Finished WireGuard via wg-quick(8) for wgmail.
549 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
550 # Aug 02 21:59:27 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
551 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Scheduled restart job, restart counter is at 1.
552 # Aug 02 21:95:47 sy systemd[1]: Stopped WireGuard via wg-quick(8) for wgmail.
553 # Aug 02 21:59:47 sy systemd[1]: Starting WireGuard via wg-quick(8) for wgmail...
554 # Aug 02 21:59:47 sy wg-quick[3424]: wg-quick: `wgmail' already exists
555 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=1/FAILURE
556 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
557 # Aug 02 21:59:47 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
560 # According to iptables -S and iptables -t nat -S,
561 # there are no modifications to iptables rules on a succsfull run,
564 vpnser
=wg-quick@wgmail.service
568 rsync
-aiSAX --chown=root
:root
--chmod=g-s
/p
/c
/filesystem
/etc
/wireguard
/ /etc
/wireguard
569 bindpaths
="/etc/127.0.0.1-resolv:/run/systemd/resolve /etc/basic-nsswitch:/etc/resolved-nsswitch:norbind"
572 bindpaths
="/etc/10.173.8.1-resolv:/etc/127.0.0.1-resolv"
575 d
=/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/wireguard
/
577 rsync
-aiSAX --chown=root
:root
--chmod=g-s
$d /etc
/wireguard
585 u
/etc
/systemd
/system
/wg-quick@wgmail.service.d
/override.conf
<<EOF
587 Requires=mailnn.service
588 JoinsNamespaceOf=mailnn.service
589 BindsTo=mailnn.service
590 StartLimitIntervalSec=0
594 # i dont think we need any of these, but it doesnt hurt to stay consistent
604 # https://selivan.github.io/2017/12/30/systemd-serice-always-restart.html
605 u
/etc
/systemd
/system
/mailvpn.service
<<EOF
607 Description=OpenVPN tunnel for mail
608 After=syslog.target network-online.target mailnn.service
609 Wants=network-online.target
610 Documentation=man:openvpn(8)
611 Documentation=https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
612 Documentation=https://community.openvpn.net/openvpn/wiki/HOWTO
613 # needed to continually restatr
614 JoinsNamespaceOf=mailnn.service
615 BindsTo=mailnn.service
616 StartLimitIntervalSec=0
620 RuntimeDirectory=openvpn-client
621 RuntimeDirectoryMode=0710
622 WorkingDirectory=/etc/openvpn/client
623 ExecStart=/usr/sbin/openvpn --suppress-timestamps --nobind --config /etc/openvpn/client/mail.conf
624 #CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_ADMIN CAP_NET_RAW CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_DAC_OVERRIDE
626 # DeviceAllow=/dev/null rw
627 # DeviceAllow=/dev/net/tun rw
629 # in the network namespace, we cant connect to systemd-resolved on 127.0.0.53,
631 # https://unix.stackexchange.com/questions/445782/how-to-allow-systemd-resolved-to-listen-to-an-interface-other-than-loopback
632 # there is a workaround there, but i dont think its really worth it,
633 # the mail server is fine with a static dns anyways.
634 # This thread is also interesting,
635 # https://github.com/slingamn/namespaced-openvpn/issues/7
636 # todo: the iptables rule at the bottom could be useful to prevent
637 # dns from leaking in my network namespaced vpn.
638 # I also like the idea of patching systemd-resolved so it
639 # will listen on other interfaces, but its not worth my time.
642 # time to sleep before restarting a service
646 WantedBy=multi-user.target
649 u
/etc
/systemd
/system
/mailnnroute.service
<<'EOF'
651 Description=Network routing for mailnn
652 After=syslog.target network-online.target mailnn.service
653 Wants=network-online.target
654 JoinsNamespaceOf=mailnn.service
655 BindsTo=mailnn.service
656 StartLimitIntervalSec=0
662 ExecStart=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns -n 10.173.8 start mail
663 ExecStop=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns stop mail
669 WantedBy=multi-user.target
673 u
/etc
/systemd
/system
/mailnn.service
<<'EOF'
675 Description=Network Namespace for mail vpn service that will live forever and cant fail
676 After=syslog.target network-online.target
677 Wants=network-online.target
682 ExecStart=/bin/sleep infinity
685 WantedBy=multi-user.target
688 u
/etc
/systemd
/system
/mailbindwatchdog.service
<<EOF
690 Description=Watchdog to restart services relying on systemd-resolved dir
691 After=syslog.target network-online.target
692 Wants=network-online.target
693 BindsTo=mailnn.service
697 ExecStart=/usr/local/bin/mailbindwatchdog $vpnser ${nn_progs[@]} unbound.service radicale.service
699 # time to sleep before restarting a service
703 WantedBy=multi-user.target
709 rm -fv /etc
/systemd
/system
/openvpn-client-mail@.service
711 # We use a local unbound because systemd-resolved wont accept our
712 # request, it will only listen to 127.0.0.53 in the main network
713 # namespace, and rejected feature requests to change that (although I
714 # could change the code and recompile), but anyways, that could answer
715 # with things specific to the lan that aren't applicable in this
716 # namespace, and since unbound is a recursive resolver, it means we just
717 # use our own ip against dnsbl rate limits.
719 # If we ever notice this change, chattr +i on it
720 # trust-ad is used in t10+, glibc 2.31
722 u
/etc
/127.0.0.1-resolv/stub-resolv.conf
<<'EOF'
724 options edns0 trust-ad
727 u
/etc
/127.0.0.53-resolv/stub-resolv.conf
<<'EOF'
728 nameserver 127.0.0.53
729 options edns0 trust-ad
733 u
/etc
/10.173.8.1-resolv/stub-resolv.conf
<<'EOF'
734 nameserver 10.173.8.1
735 options edns0 trust-ad
738 # this is just a bug fix for trisquel.
739 f
=/etc
/apparmor.d
/usr.sbin.unbound
740 line
="/usr/sbin/unbound flags=(attach_disconnected) {"
741 if ! grep -qFx "$line" $f; then
742 badline
="/usr/sbin/unbound {"
743 if ! grep -qFx "$badline" $f; then
744 err expected line
in $f not found
746 sed -i "s,^$badline$,$line," $f
747 if systemctl is-active apparmor
&>/dev
/null
; then
748 m systemctl reload apparmor
752 # note: anything added to nn_progs needs corresponding rm
753 # down below in the host switch
756 # Note dovecots lmtp doesnt need to be in the same nn to accept delivery.
757 # Its in the nn so remote clients can connect to it.
758 nn_progs
+=(spamassassin dovecot
)
763 # todo, should this be after vpn service
764 u
/etc
/systemd
/system
/unbound.service.d
/nn.conf
<<EOF
767 JoinsNamespaceOf=mailnn.service
768 BindsTo=mailnn.service
769 StartLimitIntervalSec=0
773 # note the nsswitch bind is actually not needed for bk, but
774 # its the same file so it does no harm.
781 # sooo, there are a few ways to get traffic from the mail network
782 # namespace to go over the wghole.
784 #1: unify the mail vpn and wghole
785 # into 1 network. this seems simple and logical, so I'm doing it.
786 # One general downside is tying things together, if I need to mess
787 # with one thing, it breaks the other. Oh well for now.
789 # 2. We can route 10.5.3.0/24 out of the mail nn and nat it into wghole.
791 # 3. We can setup the routing to happen on li, which seemed like I
792 # just needed to add 10.8.0.4/24 to AllowedIPs in at least the
793 # wghole clients, but I think that is kind of hacky and breaks ipv4
794 # routing within the mailvpn, it happened to work just because exim
795 # prefers ipv6 and that was also available in the mailvpn.
797 # 4. Put the hole interface into the mail network namespace. This
798 # doesn't work if the mail vpn is wg. For openvpn, it bypasses the
799 # vpn routing and establishes a direct connection. I only use the
800 # hole vpn for randomish things, it should be fine to join the mail
801 # nn for that. There should be some way to fix the routing issue
802 # by doing manual routing, but that doesn't seem like a good use of time.
804 # https://www.wireguard.com/netns/#
806 # for wireguard debugging
807 # echo module wireguard +p > /sys/kernel/debug/dynamic_debug/control
812 for unit
in ${nn_progs[@]}; do
813 u
/etc
/systemd
/system
/$unit.service.d
/nn.conf
<<EOF
816 # Wants appears better than requires because with requires,
817 # if the vpnser fails to start, this service won't get run at
818 # all, even if the vpnser starts on an automatic restart.
821 After=network.target mailnn.service $vpnser
822 JoinsNamespaceOf=mailnn.service
823 BindsTo=mailnn.service
824 StartLimitIntervalSec=0
828 # note the nsswitch bind is actually not needed for bk, but
829 # its the same file so it does no harm.
838 for unit
in exim4 spamassassin dovecot unbound
; do
839 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
848 # * wghole (another mail vpn)
851 u
/etc
/systemd
/system
/wg-quick@wghole.service.d
/override.conf
<<'EOF'
853 StartLimitIntervalSec=0
861 # * spamassassin config
862 u
/etc
/sysctl.d
/80-iank-mail.conf
<<'EOF'
864 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 120
870 u
/etc
/spamassassin
/mylocal.cf
<<'EOF'
871 # this is mylocal.cf because the normal local.cf has a bunch of upstream stuff i dont want to mess with
874 # /usr/share/doc/exim4-base/README.Debian.gz:
875 # SpamAssassin's default report should not be used in a add_header
876 # statement since it contains empty lines. (This triggers e.g. Amavis'
877 # warning "BAD HEADER SECTION, Improper folded header field made up
878 # entirely of whitespace".) This is a safe, terse alternative:
879 clear_report_template
880 report (_SCORE_ / _REQD_ requ) _TESTSSCORES(,)_ autolearn=_AUTOLEARN
881 uridnsbl_skip_domain iankelling.org
882 uridnsbl_skip_domain amnimal.ninja
883 uridnsbl_skip_domain expertpathologyreview.com
884 uridnsbl_skip_domain zroe.org
887 # 2020-10-19 remove old file. remove this when all hosts updated
888 rm -fv /etc
/systemd
/system
/spamddnsfix.
{timer
,service
}
890 u
/etc
/default
/spamassassin
<<'EOF'
891 # defaults plus debugging flags for an issue im having
892 OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
893 PIDFILE="/var/run/spamd.pid"
895 NICE="--nicelevel 15"
901 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
902 # note: these are duplicated in exim config
903 # veth0/1 # bk bk_ip6
904 internal_networks 10.173.8.1/32 10.173.8.2/32 85.119.83.50/32 2001:ba8:1f1:f0c9::2
905 trusted_networks 10.173.8.1/32 10.173.8.2/32 85.119.83.50/32 2001:ba8:1f1:f0c9::2
910 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
911 # note: these are duplicated in exim config
912 # veth0/1 # je je_ipv6
913 internal_networks 10.173.8.1/32 10.173.8.2/32 85.119.82.128/32 2001:ba8:1f1:f09d::2/128
914 trusted_networks 10.173.8.1/32 10.173.8.2/32 85.119.82.128/32 2001:ba8:1f1:f09d::2/128
918 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
919 # note: these are duplicated in exim config
920 # veth0/1 # li li_ip6
921 internal_networks 10.173.8.1/32 10.173.8.2/32 72.14.176.105/32 2600:3c00::f03c:91ff:fe6d:baf8/128
922 trusted_networks 10.173.8.1/32 10.173.8.2/32 72.14.176.105/32 2600:3c00::f03c:91ff:fe6d:baf8/128
927 ##### end spamassassin config
933 ## needed only for openvpn mail vpn.
934 # if [[ -e /p/c/filesystem ]]; then
935 # # note, man openvpn implies we could just call mail-route on vpn startup/shutdown with
936 # # systemd, buuut it can remake the tun device unexpectedly, i got this in the log
937 # # after my internet was down for a bit:
938 # # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device.
939 # m /a/exe/vpn-mk-client-cert -b mailclient -n mail li.iankelling.org
942 # With openvpn, I didn't get around to persisting the openvpn
943 # cert/configs into /p/c/machine_specific/bk, so I had this case to
944 # manually get the cert. However, we aren't using openvpn anymore, so it
949 # if [[ ! -e /etc/openvpn/client/mail.conf ]]; then
950 # echo "$0: error: first, on a system with /p/c/filesystem, run mail-setup, or the vpn-mk-client-cert line above this err" 2>&2
956 m rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/mail-cert-cron
/usr
/local
/bin
958 u
/etc
/systemd
/system
/mailcert.service
<<'EOF'
960 Description=Mail cert rsync
961 After=multi-user.target
965 ExecStart=/usr/local/bin/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron
967 u
/etc
/systemd
/system
/mailcert.timer
<<'EOF'
969 Description=Run mail-cert once a day
975 WantedBy=timers.target
979 wghost
=${HOSTNAME}wg.b8.nz
980 if $bhost_t && [[ ! -e /etc
/exim
4/certs
/$wghost/privkey.pem
]]; then
981 certbot
-n --manual-public-ip-logging-ok --eff-email --agree-tos -m letsencrypt@iankelling.org \
982 certonly
--manual --preferred-challenges=dns \
983 --manual-auth-hook /a
/bin
/ds
/le-dns-challenge \
984 --manual-cleanup-hook /a
/bin
/ds
/le-dns-challenge-cleanup \
985 --deploy-hook /a
/bin
/ds
/le-exim-deploy
-d $wghost
990 # todo: test that these configs actually work, eg run
992 # and see someone is banned.
994 sed 's/^ *before *= *iptables-common.conf/before = iptables-common-exim.conf/' \
995 /etc
/fail2ban
/action.d
/iptables-multiport.conf| u
/etc
/fail2ban
/action.d
/iptables-exim.conf
996 u
/etc
/fail2ban
/action.d
/iptables-common-exim.conf
<<'EOF'
997 # iank: same as iptables-common, except iptables is iptables-exim, ip6tables is ip6tables-exim
999 # Fail2Ban configuration file
1001 # Author: Daniel Black
1003 # This is a included configuration file and includes the definitions for the iptables
1004 # used in all iptables based actions by default.
1006 # The user can override the defaults in iptables-common.local
1008 # Modified: Alexander Koeppe <format_c@online.de>, Serg G. Brester <serg.brester@sebres.de>
1009 # made config file IPv6 capable (see new section Init?family=inet6)
1013 after = iptables-blocktype.local
1014 iptables-common.local
1015 # iptables-blocktype.local is obsolete
1019 # Option: actionflush
1020 # Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
1023 actionflush = <iptables> -F f2b-<name>
1029 # Notes specifies the iptables chain to which the Fail2Ban rules should be
1031 # Values: STRING Default: INPUT
1034 # Default name of the chain
1039 # Notes.: specifies port to monitor
1040 # Values: [ NUM | STRING ] Default:
1045 # Notes.: internally used by config reader for interpolations.
1046 # Values: [ tcp | udp | icmp | all ] Default: tcp
1051 # Note: This is what the action does with rules. This can be any jump target
1052 # as per the iptables man page (section 8). Common values are DROP
1053 # REJECT, REJECT --reject-with icmp-port-unreachable
1055 blocktype = REJECT --reject-with icmp-port-unreachable
1057 # Option: returntype
1058 # Note: This is the default rule on "actionstart". This should be RETURN
1059 # in all (blocking) actions, except REJECT in allowing actions.
1063 # Option: lockingopt
1064 # Notes.: Option was introduced to iptables to prevent multiple instances from
1065 # running concurrently and causing irratic behavior. -w was introduced
1066 # in iptables 1.4.20, so might be absent on older systems
1067 # See https://github.com/fail2ban/fail2ban/issues/1122
1072 # Notes.: Actual command to be executed, including common to all calls options
1074 iptables = /usr/local/bin/iptables-exim <lockingopt>
1079 # Option: blocktype (ipv6)
1080 # Note: This is what the action does with rules. This can be any jump target
1081 # as per the iptables man page (section 8). Common values are DROP
1082 # REJECT, REJECT --reject-with icmp6-port-unreachable
1084 blocktype = REJECT --reject-with icmp6-port-unreachable
1086 # Option: iptables (ipv6)
1087 # Notes.: Actual command to be executed, including common to all calls options
1089 iptables = /usr/local/bin/ip6tables-exim <lockingopt>
1092 u
/etc
/fail2ban
/jail.d
/exim.
local <<'EOF'
1097 banaction = iptables-exim
1099 # 209.51.188.13 = mail.fsf.org
1100 # 2001:470:142::13 = mail.fsf.org
1101 # 209.51.188.92 = eggs.gnu.org
1102 # 2001:470:142:3::10 = eggs.gnu.org
1103 # 72.14.176.105 2600:3c00:e000:280::2 = mail.iankelling.org
1104 # 10.173.8.1 = non-nn net
1105 ignoreip = 209.51.188.13 2001:470:142::13 209.51.188.92 2001:470:142:3::10 72.14.176.105 2600:3c00:e000:280::2 10.173.8.1
1108 m systemctl restart fail2ban
1111 # * common exim4 config
1114 ## old, not using forward files anymore
1115 rm -fv $uhome/.forward
/root
/.forward
1118 # Make all system users be aliases. preventative
1119 # prevents things like cron mail for user without alias
1120 awk 'BEGIN { FS = ":" } ; $6 !~ /^\/home/ || $7 ~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1121 if [[ ! $user ]]; then
1124 if ! grep -q "^$user:" /etc
/aliases
; then
1125 echo "$user: root" |m
tee -a /etc
/aliases
1130 awk 'BEGIN { FS = ":" } ; $6 ~ /^\/home/ && $7 !~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1133 sed -i "/^user:/d" /etc
/aliases
1136 if ! grep -q "^$user:" /etc
/aliases
; then
1137 echo "$user: root" |m
tee -a /etc
/aliases
1144 .
/a
/bin
/bash_unpublished
/priv-mail-setup
1147 m gpasswd
-a iank adm
#needed for reading logs
1149 ### make local bounces go to normal maildir
1150 # local mail that bounces goes to /Maildir or /root/Maildir
1151 dirs=(/m
/md
/bounces
/{cur
,tmp
,new
})
1152 m mkdir
-p ${dirs[@]}
1153 m chown iank
:iank
/m
/m
/md
1154 m
ln -sfT /m
/md
/m
/iank
1155 m
chmod 771 /m
/m
/md
1156 m chown
-R $u:Debian-exim
/m
/md
/bounces
1157 m
chmod 775 ${dirs[@]}
1158 m usermod
-a -G Debian-exim
$u
1159 for d
in /Maildir
/root
/Maildir
; do
1160 if [[ ! -L $d ]]; then
1163 m
ln -sf -T /m
/md
/bounces
$d
1166 # dkim, client passwd file
1167 files
=(/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/exim
4/*)
1168 f
=/p
/c
/filesystem
/etc
/exim
4/passwd.client
1169 if [[ -e $f ]]; then
1172 if (( ${#files[@]} )); then
1173 m rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 \
1174 ${files[@]} /etc
/exim4
1177 # By default, only 10 days of logs are kept. increase that.
1178 # And dont compress, I look back at logs too often and
1179 # dont need the annoyance of decompressing them all the time.
1180 m
sed -ri '/^\s*compress\s*$/d;s/^(\s*rotate\s).*/\11000/' /etc
/logrotate.d
/exim4-base
1181 files
=(/var
/log
/exim
4/*.gz
)
1182 if (( ${#files[@]} )); then
1186 ## disabled. not using .forward files, but this is still interesting
1188 # ## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost
1189 # # i only need .forwards, so just doing that one.
1190 # cd /etc/exim4/conf.d/router
1191 # b=userforward_higher_priority
1192 # # replace the router name so it is unique
1193 # sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b
1194 rm -fv /etc
/exim
4/conf.d
/router
/175_userforward_higher_priority
1196 # todo, consider 'separate' in etc/exim4.conf, could it help on busy systems?
1198 # alerts is basically the postmaster address
1199 m
sed -i --follow-symlinks -f - /etc
/aliases
<<EOF
1200 \$a root: alerts@iankelling.org
1204 cat >/etc
/exim
4/conf.d
/rewrite
/34_iank_rewriting
<<'EOF'
1205 ncsoft@zroe.org graceq2323@gmail.com hE
1209 rm -fv /etc
/exim
4/conf.d
/retry
/37_retry
1211 cat >/etc
/exim
4/conf.d
/retry
/17_retry
<<'EOF'
1212 # Retry fast for my own domains
1213 iankelling.org * F,1d,1m;F,14d,1h
1214 amnimal.ninja * F,1d,1m;F,14d,1h
1215 expertpathologyreview.com * F,1d,1m;F,14d,1h
1216 je.b8.nz * F,1d,1m;F,14d,1h
1217 zroe.org * F,1d,1m;F,14d,1h
1218 eximbackup.b8.nz * F,1d,1m;F,14d,1h
1220 # The spec says the target domain will be used for temporary host errors,
1221 # but i've found that isn't correct, the hostname is required
1222 # at least sometimes.
1223 nn.b8.nz * F,1d,1m;F,14d,1h
1224 defaultnn.b8.nz * F,1d,1m;F,14d,1h
1225 mx.iankelling.org * F,1d,1m;F,14d,1h
1226 bk.b8.nz * F,1d,1m;F,14d,1h
1227 eggs.gnu.org * F,1d,1m;F,14d,1h
1228 fencepost.gnu.org * F,1d,1m;F,14d,1h
1230 # afaik our retry doesnt need this, but just using everything
1231 mx.amnimal.ninja * F,1d,1m;F,14d,1h
1232 mx.expertpathologyreview.com * F,1d,1m;F,14d,1h
1235 mail.fsf.org * F,1d,15m;F,14d,1h
1239 rm -vf /etc
/exim
4/conf.d
/main
/000_localmacros
# old filename
1241 # separate file so without quoted EOF for convenience
1242 cat >/etc
/exim
4/conf.d
/main
/000_local2
<<EOF
1243 # normally empty, I set this so I can set the envelope address
1244 # when doing mail redelivery to invoke filters. Also allows
1245 # me exiqgrep and stuff.
1246 MAIN_TRUSTED_GROUPS = $u
1251 for f
in *-private.pem
; do
1252 echo ${f%-private.pem}
1254 } | u
/etc
/exim
4/conf.d
/my-dkim-domains
1256 rm -f /etc
/exim
4/conf.d
/transport
/11_iank
1258 cat >/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1259 MAIN_TLS_ENABLE = true
1261 # require tls connections for all smarthosts
1262 REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS = ! nn.b8.nz
1263 REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS = nn.b8.nz
1265 # debian exim config added this in 2016 or so?
1266 # it's part of the smtp spec, to limit lines to 998 chars
1267 # but a fair amount of legit mail does not adhere to it. I don't think
1268 # this should be default, like it says in
1269 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=828801
1270 # todo: the bug for introducing this was about headers, but
1271 # the fix maybe is for all lines? one says gmail rejects, the
1272 # other says gmail does not reject. figure out and open a new bug.
1273 IGNORE_SMTP_LINE_LENGTH_LIMIT = true
1275 # more verbose logs. used to use +all, but made it less for more efficiency.
1276 MAIN_LOG_SELECTOR = -skip_delivery -tls_cipher -tls_certificate_verified +all_parents +address_rewrite +arguments +deliver_time +pid +queue_time +queue_time_overall +received_recipients +received_sender +return_path_on_delivery +sender_on_delivery +smtp_confirmation +subject
1278 # Based on spec, seems like a good idea to be nice.
1279 smtp_return_error_details = true
1281 # default is 10. when exim has been down for a bit, fsf mailserver
1282 # will do a big send in one connection, then exim decides to put
1283 # the messages in the queue instead of delivering them, to avoid
1284 # spawning too many delivery processes. This is the same as the
1285 # fsfs value. And the corresponding one for how many messages
1286 # to send out in 1 connection remote_max_parallel = 256
1287 smtp_accept_queue_per_connection = 500
1290 DKIM_CANON = relaxed
1294 # The file is based on the outgoing domain-name in the from-header.
1295 # sign if key exists
1296 DKIM_PRIVATE_KEY = ${if exists{/etc/exim4/${dkim_domain}-private.pem} {/etc/exim4/${dkim_domain}-private.pem}}
1298 # most of the ones that gmail seems to use.
1299 # Exim has horrible default of signing unincluded
1300 # list- headers since they got mentioned in an
1301 # rfc, but this messes up mailing lists, like gnu/debian which want to
1302 # keep your dkim signature intact but add list- headers.
1303 DKIM_SIGN_HEADERS = mime-version:in-reply-to:references:from:date:subject:to
1305 domainlist local_hostnames = ! je.b8.nz : ! bk.b8.nz : *.b8.nz : b8.nz
1307 # note: most of these are duplicated in spamassassin config
1308 hostlist iank_trusted = <; \
1312 72.14.176.105 ; 2600:3c00::f03c:91ff:fe6d:baf8 ; \
1313 # li_vpn_net li_vpn_net_ip6s
1314 10.8.0.0/24; 2600:3c00:e000:280::/64 ; 2600:3c00:e002:3800::/56 ; \
1316 85.119.83.50 ; 2001:ba8:1f1:f0c9::2 ; \
1318 85.119.82.128 ; 2001:ba8:1f1:f09d::2 ; \
1319 # fsf_mit_net fsf_mit_net_ip6 fsf_net fsf_net_ip6 fsf_office_net
1320 18.4.89.0/24 ; 2603:3005:71a:2e00::/64 ; 209.51.188.0/24 ; 2001:470:142::/48 ; 74.94.156.208/28
1323 # this is the default delay_warning_condition, plus matching on local_domains.
1324 # If I have some problem with my local system that causes delayed delivery,
1325 # I dont want to send warnings out to non-local domains.
1326 delay_warning_condition = ${if or {\
1327 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }\
1328 { match{$h_precedence:}{(?i)bulk|list|junk} }\
1329 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }\
1330 { match_domain{$domain}{+local_domains} }\
1334 # enable 587 in addition to the default 25, so that
1335 # i can send mail where port 25 is firewalled by isp
1336 daemon_smtp_ports = 25 : 587 : 10025
1337 # default of 25, can get stuck when catching up on mail
1338 smtp_accept_max = 400
1339 smtp_accept_reserve = 100
1340 smtp_reserve_hosts = +iank_trusted
1342 # Rules that make receiving more liberal should be on backup hosts
1343 # so that we dont reject mail accepted by MAIL_HOST
1344 LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE = /etc/exim4/conf.d/local_deny_exceptions_acl
1346 acl_not_smtp = acl_check_not_smtp
1349 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show exim4)" ge
4.94; then
1350 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1351 # In t11, we cant do the old anymore because this is tainted data used in a file lookup.
1352 # /usr/share/doc/exim4/NEWS.Debian.gz suggests to use lookups to untaint data.
1353 DKIM_DOMAIN = ${lookup {${domain:$rh_from:}}lsearch,ret=key{/etc/exim4/conf.d/my-dkim-domains}}
1356 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1358 # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
1359 # and its best for this to align https://tools.ietf.org/html/rfc7489#page-8
1360 # There could be some circumstance when the
1361 # from: isnt our domain, but the envelope sender is
1362 # and so still want to sign, but I cant think of any case.
1363 DKIM_DOMAIN = ${lc:${domain:$rh_from:}}
1367 cat >/etc
/exim
4/conf.d
/main
/30_local
<<EOF
1372 rm -fv /etc
/exim
4/rcpt_local_acl
# old path
1374 u
/etc
/exim
4/conf.d
/local_deny_exceptions_acl
<<'EOF'
1375 # This acl already exists in rcpt, this just makes it more widespread.
1376 # See the comment there for its rationale. The reason it needs to be
1377 # more widespread is that I've turned on sender verification, but cron
1378 # emails can fail sender verification since I may be in a network that
1379 # doesn't have my local dns.
1383 # i setup a local programs smtp to mail.iankelling.org, this
1384 # skips sender verification for it.
1389 rm -fv /etc
/exim
4/data_local_acl
# old path
1391 u
/etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
1392 # Except for the "condition =", this was
1393 # a comment in the check_data acl. The comment about this not
1394 # being suitable has been changed in newer exim versions. The only thing
1395 # related I found was to
1396 # add the condition =, cuz spamassassin has problems with big
1397 # messages and spammers don't bother with big messages,
1398 # but I've increased the size from 10k
1399 # suggested in official docs, and 100k in the wiki example because
1400 # those docs are rather old and I see a 110k spam message
1401 # pretty quickly looking through my spam folder.
1404 !hosts = +iank_trusted
1405 remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : X-Spam_report
1408 !hosts = +iank_trusted
1409 # Smarthosts connect with residential ips and thus get flagged as spam if we do a spam check.
1410 !authenticated = plain_server:login_server
1411 condition = ${if < {$message_size}{5000K}}
1412 spam = Debian-exim:true
1413 add_header = X-Spam_score_int: $spam_score_int
1414 add_header = X-Spam_score: $spam_score
1415 add_header = X-Spam_bar: $spam_bar
1416 add_header = X-Spam_report: $spam_report
1417 add_header = X-Spam_action: $spam_action
1421 # spf = pass:fail:softfail:none:neutral:permerror:temperror
1422 # dmarc_status = reject:quarantine
1423 # add_header = Reply-to: dmarctest@iankelling.org
1425 # This allows us to delay sending an email until a specific time,
1426 # allowing us time to change our mind and also to appear to have
1427 # sent the message at a different time. In emacs copy the
1428 # automcatically date header add an f to make it fdate,
1429 # and then change the date to whenever you want to send it.
1430 # In the system-status script, I check once per minute
1431 # or more if it should be sent.
1434 # fdate = future date.
1435 condition = ${if def:h_fdate:}
1436 remove_header = fdate:
1437 remove_header = date:
1438 add_header = date: $h_fdate
1441 sed -i 's/^freeze_tell =.*/#\0/' /etc
/exim
4/conf.d
/main
/02_exim4-config_options
1443 u
/etc
/exim
4/conf.d
/acl
/41_check_not_smtp
<<'EOF'
1444 # todo: for non MAIL_HOST machines, i'd like
1445 # to send to the MAIL_HOST without freezing.
1446 # So, only do this if we are MAIL_HOST.
1450 # fdate = future date.
1451 condition = ${if def:h_fdate:}
1452 remove_header = fdate:
1453 remove_header = date:
1454 add_header = Date: $h_fdate
1461 rm -fv /etc
/exim
4/conf.d
/router
/8{8,9}0_backup_copy \
1462 /etc
/exim
4/conf.d
/router
/865_backup_redir \
1463 /etc
/exim
4/conf.d
/router
/870_backup_local
1465 # It is important for this to exist everywhere except in MAIL_HOST
1466 # non-nn config. Previously, just had it in the nn-config on MAIL_HOST,
1467 # but that is a problem if we change mail host and still have something
1468 # in the queue which was destined for this router, but hosts were
1469 # unreachable, the routers will be reevaluated on the next retry.
1470 u
/etc
/exim
4/conf.d
/router
/170_backup_copy
<<EOF
1471 ### router/900_exim4-config_local_user
1472 #################################
1475 driver = manualroute
1476 domains = eximbackup.b8.nz
1477 transport = backup_remote
1478 ignore_target_hosts = ${HOSTNAME}wg.b8.nz
1479 # note changes here also require change in passwd.client
1480 route_list = * eximbackup.b8.nz
1481 same_domain_copy_routing = yes
1482 errors_to = alerts@iankelling.org
1487 # exim4-config transports are the same as default except for
1488 # message_linelength_limit = 2097152
1490 # TODO: copy the defaults into their own file, and setup a cronjob so
1491 # that if file.dpkg-dist shows up, and it is different, we get an alert.
1493 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp_smarthost
<<'EOF'
1494 ### transport/30_exim4-config_remote_smtp_smarthost
1495 #################################
1497 # This transport is used for delivering messages over SMTP connections
1498 # to a smarthost. The local host tries to authenticate.
1499 # This transport is used for smarthost and satellite configurations.
1501 remote_smtp_smarthost:
1502 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1504 message_linelength_limit = 2097152
1506 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1508 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1512 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1513 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1515 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1516 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1518 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1519 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1521 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1522 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1524 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1525 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1527 .ifdef REMOTE_SMTP_RETURN_PATH
1528 return_path = REMOTE_SMTP_RETURN_PATH
1530 .ifdef REMOTE_SMTP_HELO_DATA
1531 helo_data=REMOTE_SMTP_HELO_DATA
1533 .ifdef TLS_DH_MIN_BITS
1534 tls_dh_min_bits = TLS_DH_MIN_BITS
1536 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1537 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1539 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1540 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1542 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1543 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1545 .ifdef REMOTE_SMTP_SMARTHOST_PROTOCOL
1546 protocol = REMOTE_SMTP_SMARTHOST_PROTOCOL
1550 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp
<<'EOF'
1551 ### transport/30_exim4-config_remote_smtp
1552 #################################
1553 # This transport is used for delivering messages over SMTP connections.
1556 debug_print = "T: remote_smtp for $local_part@$domain"
1558 message_linelength_limit = 2097152
1559 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1560 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1562 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1563 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1565 .ifdef REMOTE_SMTP_RETURN_PATH
1566 return_path = REMOTE_SMTP_RETURN_PATH
1568 .ifdef REMOTE_SMTP_HELO_DATA
1569 helo_data=REMOTE_SMTP_HELO_DATA
1571 .ifdef REMOTE_SMTP_INTERFACE
1572 interface = REMOTE_SMTP_INTERFACE
1575 dkim_domain = DKIM_DOMAIN
1577 .ifdef DKIM_IDENTITY
1578 dkim_identity = DKIM_IDENTITY
1580 .ifdef DKIM_SELECTOR
1581 dkim_selector = DKIM_SELECTOR
1583 .ifdef DKIM_PRIVATE_KEY
1584 dkim_private_key = DKIM_PRIVATE_KEY
1587 dkim_canon = DKIM_CANON
1590 dkim_strict = DKIM_STRICT
1592 .ifdef DKIM_SIGN_HEADERS
1593 dkim_sign_headers = DKIM_SIGN_HEADERS
1595 .ifdef DKIM_TIMESTAMPS
1596 dkim_timestamps = DKIM_TIMESTAMPS
1598 .ifdef TLS_DH_MIN_BITS
1599 tls_dh_min_bits = TLS_DH_MIN_BITS
1601 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1602 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1604 .ifdef REMOTE_SMTP_PRIVATEKEY
1605 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1607 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1608 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1610 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1611 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1616 u
/etc
/exim
4/conf.d
/transport
/30_backup_remote
<<'EOF'
1620 message_linelength_limit = 2097152
1621 hosts_require_auth = *
1624 # manual return path because we want it to be the envelope sender
1625 # we got not the one we are using in this smtp transport
1626 headers_add = "Return-path: $sender_address"
1627 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1628 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1630 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1631 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1633 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1634 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1636 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1637 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1639 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1640 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1642 .ifdef REMOTE_SMTP_HELO_DATA
1643 helo_data=REMOTE_SMTP_HELO_DATA
1645 .ifdef TLS_DH_MIN_BITS
1646 tls_dh_min_bits = TLS_DH_MIN_BITS
1648 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1649 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1651 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1652 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1654 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1655 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1659 u
/etc
/exim
4/conf.d
/router
/900_exim4-config_local_user
<<'EOF'
1660 ### router/900_exim4-config_local_user
1661 #################################
1663 # This router matches local user mailboxes. If the router fails, the error
1664 # message is "Unknown user".
1666 debug_print = "R: local_user for $local_part@$domain"
1668 domains = +local_domains
1669 # ian: default file except where mentioned.
1670 # ian: commented this. I get all local parts. for bk, an rcpt
1671 # check handles checking with dovecot, and the only router
1672 # after this is root.
1673 # local_parts = ! root
1674 transport = LOCAL_DELIVERY
1675 cannot_route_message = Unknown user
1676 # ian: added for + addressing.
1677 local_part_suffix = +*
1678 local_part_suffix_optional
1680 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_dovecot_lmtp
<<'EOF'
1683 socket = /var/run/dovecot/lmtp
1684 #maximum number of deliveries per batch, default 1
1689 u
/etc
/exim
4/conf.d
/transport
/30_remote_smtp_vpn
<<'EOF'
1690 # same as debians 30_exim4-config_remote_smtp, but
1691 # with interface added at the end.
1694 debug_print = "T: remote_smtp_vpn for $local_part@$domain"
1696 message_linelength_limit = 2097152
1697 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1698 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1700 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1701 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1703 .ifdef REMOTE_SMTP_RETURN_PATH
1704 return_path = REMOTE_SMTP_RETURN_PATH
1706 .ifdef REMOTE_SMTP_HELO_DATA
1707 helo_data=REMOTE_SMTP_HELO_DATA
1710 dkim_domain = DKIM_DOMAIN
1712 .ifdef DKIM_SELECTOR
1713 dkim_selector = DKIM_SELECTOR
1715 .ifdef DKIM_PRIVATE_KEY
1716 dkim_private_key = DKIM_PRIVATE_KEY
1719 dkim_canon = DKIM_CANON
1722 dkim_strict = DKIM_STRICT
1724 .ifdef DKIM_SIGN_HEADERS
1725 dkim_sign_headers = DKIM_SIGN_HEADERS
1727 .ifdef TLS_DH_MIN_BITS
1728 tls_dh_min_bits = TLS_DH_MIN_BITS
1730 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1731 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1733 .ifdef REMOTE_SMTP_PRIVATEKEY
1734 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1736 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1737 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1739 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1740 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1742 interface = <; 10.8.0.4 ; 2600:3c00:e002:3800::4
1745 u
/etc
/exim
4/conf.d
/transport
/30_smarthost_dkim
<<'EOF'
1746 # ian: this is remote_smtp_smarthost plus the dkim parts from remote_smtp
1749 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1751 message_linelength_limit = 2097152
1753 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1755 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1759 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1760 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1762 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1763 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1765 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1766 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1768 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1769 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1771 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1772 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1774 .ifdef REMOTE_SMTP_RETURN_PATH
1775 return_path = REMOTE_SMTP_RETURN_PATH
1777 .ifdef REMOTE_SMTP_HELO_DATA
1778 helo_data=REMOTE_SMTP_HELO_DATA
1780 .ifdef TLS_DH_MIN_BITS
1781 tls_dh_min_bits = TLS_DH_MIN_BITS
1783 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1784 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1786 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1787 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1789 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1790 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1793 dkim_domain = DKIM_DOMAIN
1795 .ifdef DKIM_SELECTOR
1796 dkim_selector = DKIM_SELECTOR
1798 .ifdef DKIM_PRIVATE_KEY
1799 dkim_private_key = DKIM_PRIVATE_KEY
1802 dkim_canon = DKIM_CANON
1805 dkim_strict = DKIM_STRICT
1807 .ifdef DKIM_SIGN_HEADERS
1808 dkim_sign_headers = DKIM_SIGN_HEADERS
1813 cat >/etc
/exim
4/update-exim4.conf.conf
<<'EOF'
1814 # default stuff, i havent checked if its needed
1815 dc_minimaldns='false'
1817 dc_use_split_config='true'
1818 dc_mailname_in_oh='true'
1824 if ! mountpoint
/o
; then
1825 echo "error /o is not a mountpoint" >&2
1829 # davx/davdroid setup instructions at the bottom
1832 # http://radicale.org/user_documentation/
1833 # https://davdroid.bitfire.at/configuration/
1835 # note on debugging: if radicale can't bind to the address,
1836 # in the log it just says "Starting Radicale". If you run
1837 # it in the foreground, it will give more info. Background
1838 # plus debug does not help.
1839 # sudo -u radicale radicale -D
1841 # created password file with:
1842 # htpasswd -c /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1843 # chmod 640 /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1844 # # setup chgrp www-data in ./conflink
1847 m usermod
-a -G radicale iank
1849 u
/etc
/systemd
/system
/radicale.service.d
/override.conf
<<EOF
1852 After=network.target network-online.target mailnn.service $vpnser
1855 JoinsNamespaceOf=mailnn.service
1856 StartLimitIntervalSec=0
1860 BindPaths=$bindpaths
1862 # time to sleep before restarting a service
1871 # use persistent uid/gid
1872 IFS
=:; read -r _ _ uid _
< <(getent passwd radicale
); unset IFS
1873 IFS
=:; read -r _ _ gid _
< <(getent group radicale
); unset IFS
1874 if [[ $uid != 609 ]]; then
1875 m systemctl stop radicale ||
:
1876 m usermod
-u 609 radicale
1877 m groupmod
-g 609 radicale
1878 m usermod
-g 609 radicale
1880 m
find /o
/radicale
-xdev -exec chown
-h 609 {} +
1881 m
find /o
/radicale
-xdev -exec chgrp
-h 609 {} +
1884 # I moved /var/lib/radicale after it's initialization.
1885 # I did a sudo -u radicale git init in the collections subfolder
1886 # after it gets created, per the git docs.
1887 m
/a
/exe
/lnf
-T /o
/radicale
/var
/lib
/radicale
1889 # from https://www.williamjbowman.com/blog/2015/07/24/setting-up-webdav-caldav-and-carddav-servers/
1891 # more config is for li in distro-end
1893 # coment in this file says this is needed for it to run on startup
1894 sed -ri 's/^\s*#+\s*(ENABLE_RADICALE\s*=\s*yes\s*)/\1/' /etc
/default
/radicale
1896 # comments say default is 0.0.0.0:5232
1897 m setini hosts
10.8.0.4:5232 server
1898 # https://radicale.org/2.1.html
1899 m setini
type http_x_remote_user auth
1902 # disable power management feature, set to 240 min sync interval,
1903 # so it shouldn't be bad.
1905 # davx^5 from f-droid
1906 # login with url and user name
1907 # url https://cal.iankelling.org/ian
1909 # pass, see password manager for radicale
1911 # add account dialog:
1913 # set account name as ian@iankelling.org, per help text below the
1916 # switch to groups are per-contact categories,
1917 # per https://davdroid.bitfire.at/configuration/radicale/
1920 # After setting up account, I added one address book, named
1921 # ianaddr. calender was already created, named ian. checked boxes under
1924 # To restore from old phone to new phone, I wiped all data out, then copied over the newly created files. I think
1926 # ignorable background info:
1928 # opentasks uses the calendar file.
1930 # The address book I created got a uuid as a name for the file. Note
1931 # the .props file says if it's a calendar or addressbook.
1933 # When debugging, tailed /var/log/radicale/radicale.log and apache log,
1934 # both show the requests happening. Without creating the address book,
1935 # after creating a contact, a sync would delete it.
1937 # Address books correspond to .props files in the radicale dir.
1939 # Some background is here,
1940 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1941 # which shows separate vcard option is from rfc 6350, the other is 2426,
1942 # radicale page says it implements the former not the latter,
1943 # which conflicts with the documentation of which to select, but whatever.
1944 # http://radicale.org/technical_choices/
1945 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1947 # Note, url above says only cayanogenmod 13+ and omnirom can manage groups.
1949 # Note, radicale had built-in git support to track changes, but they
1950 # removed it in 2.0.
1956 # ** $MAIL_HOST|bk|je)
1959 # based on a little google and package search, just the dovecot
1960 # packages we need instead of dovecot-common.
1962 # dovecot-lmtpd is for exim to deliver to dovecot instead of maildir
1963 # directly. The reason to do this is to use dovecot\'s sieve, which
1964 # can generally do more than exims filters (a few things less) and
1965 # sieve has the benefit of being supported in postfix and
1966 # proprietary/weird environments, so there is more examples on the
1968 pi-nostart dovecot-core dovecot-imapd dovecot-sieve dovecot-lmtpd dovecot-sqlite sqlite3
1970 for f
in /p
/c
{/machine_specific
/$HOSTNAME,}/filesystem
/etc
/dovecot
/users
; do
1971 if [[ -e $f ]]; then
1972 m rsync
-ahhi --chown=root
:dovecot
--chmod=0640 $f /etc
/dovecot
/
1976 for f
in /p
/c
/subdir_files
/sieve
/*sieve
/a
/bin
/ds
/subdir_files
/sieve
/*sieve
; do
1977 m sudo
-u $u /a
/exe
/lnf
-v -T $f $uhome/sieve
/${f##*/}
1980 # https://wiki.dovecot.org/SSL/DovecotConfiguration
1981 u
/etc
/dovecot
/dhparam
<<'EOF'
1982 -----BEGIN DH PARAMETERS-----
1983 MIIBCAKCAQEAoleil6SBxGqQKk7j0y2vV3Oklv6XupZKn7PkPv485QuFeFagifeS
1984 A+Jz6Wquqk5zhGyCu63Hp4wzGs4TyQqoLjkaWL6Ra/Bw3g3ofPEzMGEsV1Qdqde4
1985 jorwiwtr2i9E6TXQp0noT/7VFeHulIkayTeW8JulINdMHs+oLylv16McGCIrxbkM
1986 8D1PuO0TP/CNDs2QbRvJ1RjY3CeGpxMhrSHVgBCUMwnA2cvz3bYjI7UMYMMDPNrE
1987 PLrwsYzXGGCdJsO2vsmmqqgLsZiapYJlUNjfiyWLt7E2H6WzkNB3VIhIPfLqFDPK
1988 xioE3sYKdjOt+p6mlg3l8+OLtODEFPHDqwIBAg==
1989 -----END DH PARAMETERS-----
1993 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
1995 ssl_cert = </etc/exim4/fullchain.pem
1996 ssl_key = </etc/exim4/privkey.pem
1999 # We have a lets encrypt hooks that puts things here.
2000 # This is just for bk, which uses the vpn cert in exim
2001 # for sending mail, but the local hostname cert for
2004 ssl_cert = </etc/exim4/exim.crt
2005 ssl_key = </etc/exim4/exim.key
2010 # https://ssl-config.mozilla.org
2012 # this is the same as the certbot list, i check changes in /a/bin/ds/filesystem/usr/local/bin/check-lets-encrypt-ssl-settings
2013 ssl_cipher_list = ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
2014 ssl_protocols = TLSv1.2
2015 ssl_prefer_server_ciphers = no
2018 #per https://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
2019 # default is just $mail_plugins
2020 mail_plugins = $mail_plugins sieve
2023 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show dovecot-core)" ge
1:2.3; then
2025 ssl_dh = </etc/dovecot/dhparam
2028 } >/etc
/dovecot
/local.conf
2034 # If we changed 90-sieve.conf and removed the active part of the
2035 # sieve option, we wouldn\'t need this, but I\'d rather not modify a
2036 # default config if not needed. This won\'t work as a symlink in /a/c
2038 m sudo
-u $u /a
/exe
/lnf
-T sieve
/main.sieve
$uhome/.dovecot.sieve
2040 if [[ ! -e $uhome/sieve
/personal.sieve
]]; then
2041 m
touch $uhome/sieve
/personal
{,end
}{,test}.sieve
2044 rm -fv /etc
/dovecot
/conf.d
/20-lmtp.conf
# file from prev version
2045 cat >>/etc
/dovecot
/local.conf
<<EOF
2046 # simple password file based login
2047 !include conf.d/auth-passwdfile.conf.ext
2049 # ian: %u is used for alerts user vs iank
2050 mail_location = maildir:/m/%u:LAYOUT=fs:INBOX=/m/%u/INBOX
2055 # For a normal setup with exim, we need something like this, which
2056 # removes the domain part
2057 # auth_username_format = %Ln
2059 # or else # Exim says something like
2060 # "LMTP error after RCPT ... 550 ... User doesn't exist someuser@somedomain"
2061 # Dovecot verbose log says something like
2062 # "auth-worker(9048): passwd(someuser@somedomain): unknown user"
2063 # reference: http://wiki.dovecot.org/LMTP/Exim
2065 # However, I use this to direct all mail to the same inbox.
2066 # A normal way to do this, which I did at first is to have
2067 # a router in exim almost at the end, eg 950,
2069 # debug_print = "R: catchall for \$local_part@\$domain"
2071 # domains = +local_domains
2074 # http://blog.alteholz.eu/2015/04/exim4-and-catchall-email-address/
2075 # with superflous options removed.
2076 # However, this causes the envelope to be rewritten,
2077 # which makes filtering into mailboxes a little less robust or more complicated,
2078 # so I've done it this way instead. it also requires
2079 # modifying the local router in exim.
2080 auth_username_format = $u
2086 chown
-R mail.
mail /m
/md
2088 f
=/etc
/dovecot
/conf.d
/10-auth.conf
2089 if [[ -e $f ]]; then
2090 mv $f $f-iank-disabled
2093 cat >>/etc
/dovecot
/local.conf
<<EOF
2094 !include /etc/dovecot/local.conf.ext
2096 # for debugging info, uncomment these.
2097 # logs go to syslog and to /var/log/mail.log
2103 # This downcases the localpart. default is case sensitive.
2104 # case sensitive local part will miss out on valid email when some person or system
2105 # mistakenly capitalizes things.
2106 auth_username_format = %Lu
2109 # make 147 only listen on localhost, plan to use for nextcloud.
2110 # copied from mailinabox
2111 service imap-login {
2112 inet_listener imap {
2116 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_dovecot_authenticator.html
2118 unix_listener auth-client {
2126 sieve_before = /etc/dovecot/sieve-spam.sieve
2128 sieve = /m/sieve/%d/%n.sieve
2129 sieve_dir = /m/sieve/%d/%n
2133 # all taken from mailinabox.
2134 mail_location = maildir:/m/md/%d/%n
2136 mail_privileged_group = mail
2137 # By default Dovecot allows users to log in only with UID numbers 500 and above. mail is 8
2140 # todo: test these changes in the universal config
2141 # mailboxes taken from mailinabox but removed
2142 # settings duplicate to defaults
2161 special_use = \Archive
2165 auth_mechanisms = plain login
2168 u
/etc
/dovecot
/sieve-spam.sieve
<<'EOF'
2169 require ["regex", "fileinto", "imap4flags"];
2171 if allof (header :regex "X-Spam-Status" "^Yes") {
2177 u
/etc
/dovecot
/local.conf.ext
<<'EOF'
2180 args = /etc/dovecot/dovecot-sql.conf.ext
2184 args = /etc/dovecot/dovecot-sql.conf.ext
2189 u
/etc
/dovecot
/dovecot-sql.conf.ext
<<'EOF'
2192 # for je and bk, populated the testignore users for the relevant domains
2193 connect = /m/rc/users.sqlite
2194 default_pass_scheme = SHA512-CRYPT
2195 password_query = SELECT email as user, password FROM users WHERE email='%u';
2196 user_query = SELECT email AS user, "mail" as uid, "mail" as gid, "/m/md/%d/%n" as home FROM users WHERE email='%u';
2197 iterate_query = SELECT email AS user FROM users;
2199 m
chmod 0600 /etc
/dovecot
/dovecot-sql.conf.ext
# per Dovecot instructions
2201 # db needs to be in a www-data writable directory
2202 db
=/m
/rc
/users.sqlite
2203 if [[ ! -s $db ]]; then
2205 m sqlite3
$db <<'EOF'
2206 CREATE TABLE users (
2207 id INTEGER PRIMARY KEY AUTOINCREMENT,
2208 email TEXT NOT NULL UNIQUE,
2209 password TEXT NOT NULL,
2211 privileges TEXT NOT NULL DEFAULT '');
2214 # users.sqlite is saved into /p/c/machine_specific, so update it there!.
2216 # example of adding a user:
2217 # hash: doveadm pw -s SHA512-CRYPT -p passhere
2218 # sqlite3 /m/rc/users.sqlite <<'EOF'
2219 #insert into users (email, password) values ('testignore@bk.b8.nz', 'hash');
2221 # update users set password = 'hash' where email = 'testignore@bk.b8.nz';
2223 # this should be at the end since it requires a valid dovecot config
2224 m sievec
/etc
/dovecot
/sieve-spam.sieve
2228 # roundcube uses this
2230 chown
mail.
mail /m
/sieve
2231 m pi dovecot-managesieved
2235 # * thunderbird autoconfig setup
2237 bkdomains
=(expertpathologyreview.com amnimal.ninja
)
2238 if [[ $HOSTNAME == bk
]]; then
2239 for domain
in ${bkdomains[@]}; do
2240 m
/a
/exe
/web-conf apache2 autoconfig.
$domain
2241 dir
=/var
/www
/autoconfig.
$domain/html
/mail
2243 # taken from mailinabox
2244 u
$dir/config-v1.1.xml
<<EOF
2245 <?xml version="1.0" encoding="UTF-8"?>
2246 <clientConfig version="1.1">
2247 <emailProvider id="$domain">
2248 <domain>$domain</domain>
2250 <displayName>$domain Mail</displayName>
2251 <displayShortName>$domain</displayShortName>
2253 <incomingServer type="imap">
2254 <hostname>mail2.iankelling.org</hostname>
2256 <socketType>SSL</socketType>
2257 <username>%EMAILADDRESS%</username>
2258 <authentication>password-cleartext</authentication>
2261 <outgoingServer type="smtp">
2262 <hostname>mail2.iankelling.org</hostname>
2264 <socketType>STARTTLS</socketType>
2265 <username>%EMAILADDRESS%</username>
2266 <authentication>password-cleartext</authentication>
2267 <addThisServer>true</addThisServer>
2268 <useGlobalPreferredServer>false</useGlobalPreferredServer>
2271 <documentation url="https://$domain/">
2272 <descr lang="en">$domain website.</descr>
2277 <loginPage url="https://$domain/roundcube" />
2278 <loginPageInfo url="https://$domain/roundcube" >
2279 <username>%EMAILADDRESS%</username>
2280 <usernameField id="rcmloginuser" name="_user" />
2281 <passwordField id="rcmloginpwd" name="_pass" />
2282 <loginButton id="rcmloginsubmit" />
2285 <clientConfigUpdate url="https://autoconfig.$domain/mail/config-v1.1.xml" />
2293 if [[ $HOSTNAME == bk
]]; then
2295 # zip according to /installer
2296 # which requires adding a line to /usr/local/lib/roundcubemail/config/config.inc.php
2297 # $config['enable_installer'] = true;
2298 pi roundcube roundcube-sqlite3 php-zip apache2 php-fpm
2300 ### begin composer install
2301 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
2303 EXPECTED_CHECKSUM
="$(php -r 'copy("https
://composer.github.io
/installer.sig
", "php
://stdout
");')"
2304 php
-r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
2305 ACTUAL_CHECKSUM
="$(php -r "echo hash_file
('sha384', 'composer-setup.php');")"
2307 if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
2309 >&2 echo 'ERROR: Invalid installer checksum'
2310 rm composer-setup.php
2314 php composer-setup.php
--quiet
2315 rm composer-setup.php
2317 # based on error when running composer
2318 mkdir
-p /var
/www
/.composer
2319 chown www-data
:www-data
/var
/www
/.composer
2321 ### end composer install
2323 rcdirs
=(/usr
/local
/lib
/rcexpertpath
/usr
/local
/lib
/rcninja
)
2324 ncdirs
=(/var
/www
/ncexpertpath
/var
/www
/ncninja
)
2325 # point debian cronjob to our local install, preventing daily cron error
2327 # debian's cronjob will fail, remove both paths it uses just to be sure
2328 rm -fv /usr
/share
/roundcube
/bin
/cleandb.sh
/etc
/cron.d
/roundcube-core
2330 #### begin dl roundcube
2331 # note, im r2e subbed to https://github.com/roundcube/roundcubemail/releases.atom
2332 v
=1.4.13; f
=roundcubemail-
$v-complete.
tar.gz
2334 if [[ -e $f ]]; then
2335 timestamp
=$
(stat
-c %Y
$f)
2339 m wget
-nv -N https
://github.com
/roundcube
/roundcubemail
/releases
/download
/$v/$f
2340 new_timestamp
=$
(stat
-c %Y
$f)
2341 for rcdir
in ${rcdirs[@]}; do
2342 if [[ $timestamp != "$new_timestamp" ||
! -e "$rcdir/config/secret" ]]; then
2343 m
tar -C /usr
/local
/lib
--no-same-owner -zxf $f
2345 m
mv /usr
/local
/lib
/roundcubemail-
$v $rcdir
2348 #### end dl roundcube
2350 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2351 domain
=${bkdomains[i]}
2356 # copied from debians cronjob
2357 u
/etc
/cron.d
/$rcbase <<EOF
2358 # Roundcube database cleaning: finally removes all records that are
2359 # marked as deleted.
2360 0 5 * * * www-data $rcdir/bin/cleandb.sh >/dev/null
2363 m
/a
/exe
/web-conf
- apache2
$domain <<EOF
2364 Alias /roundcube $rcdir
2365 ### begin roundcube settings
2366 # taken from /etc/apache2/conf-available/roundcube.conf version 1.4.8+dfsg.1-1~bpo10+1
2368 Options +FollowSymLinks
2369 # This is needed to parse $rcdir/.htaccess.
2373 # Protecting basic directories:
2374 <Directory $rcdir/config>
2375 Options -FollowSymLinks
2378 ### end roundcube settings
2381 ### begin nextcloud settings
2382 Alias /nextcloud "$ncdir/"
2386 Options FollowSymLinks MultiViews
2388 <IfModule mod_dav.c>
2394 # based on install checker, links to
2395 # https://docs.nextcloud.com/server/19/admin_manual/issues/general_troubleshooting.html#service-discovery
2396 # their example was a bit wrong, I figured it out by adding
2397 # LogLevel warn rewrite:trace5
2398 # then watching the apache logs
2401 RewriteRule ^/\.well-known/host-meta /nextcloud/public.php?service=host-meta [QSA,L]
2402 RewriteRule ^/\.well-known/host-meta\.json /nextcloud/public.php?service=host-meta-json [QSA,L]
2403 RewriteRule ^/\.well-known/webfinger /nextcloud/public.php?service=webfinger [QSA,L]
2404 RewriteRule ^/\.well-known/carddav /nextcloud/remote.php/dav/ [R=301,L]
2405 RewriteRule ^/\.well-known/caldav /nextcloud/remote.php/dav/ [R=301,L]
2406 ### end nextcloud settings
2408 if [[ ! -e $rcdir/config
/secret
]]; then
2409 base64
</dev
/urandom |
head -c24 >$rcdir/config
/secret ||
[[ $?
== 141 ||
${PIPESTATUS[0]} == 32 ]]
2411 secret
=$
(cat $rcdir/config
/secret
)
2413 rclogdir
=/var
/log
/$rcbase
2414 rctmpdir
=/var
/tmp
/$rcbase
2415 rcdb
=/m
/rc
/$rcbase.sqlite
2416 # config from mailinabox
2417 u
$rcdir/config
/config.inc.php
<<EOF
2420 # debian creates this for us
2421 \$config['log_dir'] = '$rclogdir/';
2422 # debian also creates a temp dir, but it is under its install dir,
2423 # seems better to have our own.
2424 \$config['temp_dir'] = '$rctmpdir/';
2425 \$config['db_dsnw'] = 'sqlite:///$rcdb?mode=0640';
2426 \$config['default_host'] = 'ssl://localhost';
2427 \$config['default_port'] = 993;
2428 \$config['imap_conn_options'] = array(
2430 'verify_peer' => false,
2431 'verify_peer_name' => false,
2434 \$config['imap_timeout'] = 15;
2435 \$config['smtp_server'] = 'tls://127.0.0.1';
2436 \$config['smtp_conn_options'] = array(
2438 'verify_peer' => false,
2439 'verify_peer_name' => false,
2442 \$config['product_name'] = 'webmail';
2443 \$config['des_key'] = '$secret';
2444 \$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'carddav', 'html5_notifier');
2445 \$config['skin'] = 'elastic';
2446 \$config['login_autocomplete'] = 2;
2447 \$config['password_charset'] = 'UTF-8';
2448 \$config['junk_mbox'] = 'Spam';
2449 # disable builtin addressbook
2450 \$config['address_book_type'] = '';
2454 m mkdir
-p $rclogdir
2455 m
chmod 750 $rclogdir
2456 m chown www-data
:adm
$rclogdir
2457 # note: subscribed to updates:
2458 # r2e add rcmcarddav https://github.com/blind-coder/rcmcarddav/commits/master.atom ian@iankelling.org
2459 # r2e add roundcube https://github.com/roundcube/roundcubemail/releases.atom ian@iankelling.org
2460 m mkdir
-p $rctmpdir /m
/rc
2461 m chown
-R www-data.www-data
$rctmpdir /m
/rc
2462 m
chmod 750 $rctmpdir
2463 # Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
2464 # todo: check for other mailinabox things
2465 m sudo
-u www-data
touch $rclogdir/errors.log
2467 #### begin carddav install
2468 # This is the official roundcube carddav repo.
2469 # Install doc suggests downloading with composer, but that
2470 # didnt work, it said some ldap package for roundcube was missing,
2471 # but I dont want to download some extra ldap thing.
2472 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/INSTALL.md
2473 verf
=$rcdir/plugins
/carddav
/myversion
2477 if [[ -e $verf ]]; then
2478 if [[ $
(cat $verf) != "$v" ]]; then
2486 m
rm -rf $rcdir/plugins
/carddav
2488 m wget
-nv -O $tmpd/t.tgz https
://github.com
/blind-coder
/rcmcarddav
/releases
/download
/v
$v/carddav-v
$v.
tar.gz
2492 m chown
-R www-data
:www-data
$rcdir/plugins
/carddav
2493 m
cd $rcdir/plugins
/carddav
2495 m sudo
-u www-data composer.phar update
--no-dev
2497 m sudo
-u www-data composer.phar
install --no-dev
2499 m chown
-R root
:root
$rcdir/plugins
/carddav
2503 # So, strangely, this worked in initial testing, but then
2504 # on first run it wouldn't show the existing contacts until
2505 # I went into the carddav settings and did "force immediate sync",
2506 # which seemed to fix things. Note, some of these settings
2507 # get initalized per/addressbook in the db, then need changing
2508 # there or through the settings menu.
2510 # About categories, see https://www.davx5.com/tested-with/nextcloud
2511 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/GROUPS.md
2512 u
$rcdir/plugins
/carddav
/config.inc.php
<<EOF;
2514 \$prefs['_GLOBAL']['hide_preferences'] = false;
2515 \$prefs['davserver'] = array(
2516 # name in the UI is kind of dumb. This is just something short that seems to fit ok.
2518 'username' => '%u', // login username
2519 'password' => '%p', // login password
2520 'url' => 'https://$domain/nextcloud/remote.php/dav/addressbooks/users/%u/contacts',
2522 'readonly' => false,
2523 'refresh_time' => '00:10:00',
2524 'fixed' => array('username','password'),
2525 'use_categories' => false,
2530 #### end carddav install
2533 if [[ ! -d html5_notifier
]]; then
2534 m git clone https
://github.com
/stremlau
/html5_notifier
2536 cd $rcdir/plugins
/html5_notifier
2539 # todo: try out roundcube plugins: thunderbird labels
2541 # Password changing plugin settings
2542 cat $rcdir/plugins
/password
/config.inc.php.dist
- >$rcdir/plugins
/password
/config.inc.php
<<'EOF'
2543 # following are from mailinabox
2544 $config['password_minimum_length'] = 8;
2545 $config['password_db_dsn'] = 'sqlite:////m/rc/users.sqlite';
2546 $config['password_query'] = 'UPDATE users SET password=%D WHERE email=%u';
2547 $config['password_dovecotpw'] = '/usr/bin/doveadm pw';
2548 $config['password_dovecotpw_method'] = 'SHA512-CRYPT';
2549 $config['password_dovecotpw_with_method'] = true;
2551 # so PHP can use doveadm, for the password changing plugin
2552 m usermod
-a -G dovecot www-data
2553 m usermod
-a -G mail $u
2555 # so php can update passwords
2556 m chown www-data
:dovecot
/m
/rc
/users.sqlite
2557 m
chmod 664 /m
/rc
/users.sqlite
2559 # Run Roundcube database migration script (database is created if it does not exist)
2560 m
$rcdir/bin
/updatedb.sh
--dir $rcdir/SQL
--package roundcube
2561 m chown www-data
:www-data
$rcdb
2563 done # end loop over domains and rcdirs
2565 ### begin php setup for rc ###
2566 # Enable PHP modules.
2567 m phpenmod
-v php mcrypt imap
2568 # dpkg says this is required.
2569 # nextcloud needs these too
2570 m a2enmod proxy_fcgi setenvif
2571 fpm
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* (php[^ ]*-fpm)( .*|$)/\1/p') # eg: php7.4-fpm
2572 phpver
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* php([^ ]*)-fpm( .*|$)/\1/p')
2574 # 3 useless guides on php fpm fcgi debian 10 later, i figure out from reading
2575 # /etc/apache2/conf-enabled/php7.3-fpm.conf
2576 m a2dismod php
$phpver
2577 # according to /install, we should set date.timezone,
2578 # but that is dumb, the system already has the right zone in
2579 # $rclogdir/errors.log
2580 # todo: consider other settings in
2581 # /a/opt/mailinabox/setup/nextcloud.sh
2582 u
/etc
/php
/$phpver/cli
/conf.d
/30-local.ini
<<'EOF'
2586 u
/etc
/php
/$phpver/fpm
/conf.d
/30-local.ini
<<'EOF'
2587 date.timezone = "America/New_York"
2589 upload_max_filesize = 2000M
2590 post_max_size = 2000M
2591 # install checker, nextcloud/settings/admin/overview
2594 m systemctl restart
$fpm
2595 # dunno if reload/restart is needed
2596 m systemctl reload apache2
2597 # note bk backups are defined in crontab outside this file
2598 ### end php setup for rc ###
2600 fi # end roundcube setup
2604 if [[ $HOSTNAME == bk
]]; then
2605 # from install checker, nextcloud/settings/admin/overview and
2606 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2607 # curl from the web installer requirement, but i switched to cli
2608 # it recommends php-file info, but that is part of php7.3-common, already got installed
2610 m pi php-curl php-bz2 php-gmp php-bcmath php-imagick php-apcu
2612 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2613 cat >/etc
/php
/$phpver/fpm
/pool.d
/localwww.conf
<<'EOF'
2618 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2619 domain
=${bkdomains[i]}
2621 myncdir
=/var
/local
/${ncdir##*/}
2625 if [[ ! -e $ncdir/index.php
]]; then
2626 # if we wanted to only install a specific version, use something like
2627 # file=latest-22.zip
2629 m wget
-nv -N https
://download.nextcloud.com
/server
/releases
/$file
2633 m chown
-R www-data.www-data nextcloud
2634 m
mv nextcloud
$ncdir
2637 if [[ ! -e $myncdir/done-install
]]; then
2639 m sudo
-u www-data php occ maintenance
:install --database sqlite
--admin-user iank
--admin-pass $nextcloud_admin_pass
2640 m
touch $myncdir/done-install
2644 # if we did this more than once, it would revert the
2645 # version number to the original.
2646 if [[ ! -e $myncdir/config.php-orig ||
! -s config.php
]]; then
2647 if [[ -s config.php
]]; then
2648 m
cp -a config.php
$myncdir/config.php-orig
2649 # keep the file so it keeps the same permissions.
2650 truncate
-s0 config.php
2652 cat $myncdir/config.php-orig
- >$myncdir/tmp.php
<<EOF
2653 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/email_configuration.html
2654 \$CONFIG["mail_smtpmode"] = "sendmail";
2655 \$CONFIG["mail_smtphost"] = "127.0.0.1";
2656 \$CONFIG["mail_smtpport"] = 25;
2657 \$CONFIG["mail_smtptimeout"] = 10;
2658 \$CONFIG["mail_smtpsecure"] = "";
2659 \$CONFIG["mail_smtpauth"] = false;
2660 \$CONFIG["mail_smtpauthtype"] = "LOGIN";
2661 \$CONFIG["mail_smtpname"] = "";
2662 \$CONFIG["mail_smtppassword"] = "";
2663 \$CONFIG["mail_domain"] = "$domain";
2665 # https://github.com/nextcloud/user_external#readme
2666 # plus mailinabox example
2667 #\$CONFIG['user_backends'] = array(array('class' => 'OC_User_IMAP','arguments' => array('127.0.0.1', 143, null),),);
2670 # based on installer check
2671 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/caching_configuration.html
2672 \$CONFIG['memcache.local'] = '\OC\Memcache\APCu';
2674 \$CONFIG['overwrite.cli.url'] = 'https://$domain/nextcloud';
2675 \$CONFIG['htaccess.RewriteBase'] = '/nextcloud';
2676 \$CONFIG['trusted_domains'] = array (
2680 fwrite(STDOUT, "<?php\n\\\$CONFIG = ");
2681 var_export(\$CONFIG);
2682 fwrite(STDOUT, ";\n");
2684 e running php
$myncdir/tmp.php
2685 # note: we leave it around place for debugging
2686 # shellcheck disable=SC2024 # intended
2687 sudo
-u www-data php
$myncdir/tmp.php
>config.php
2690 m sudo
-u www-data php occ maintenance
:update
:htaccess
2691 list
=$
(sudo
-u www-data php
$ncdir/occ
--output=json_pretty app
:list
)
2692 # user_external not compaible with nc 23
2693 for app
in contacts calendar
; do
2694 if [[ $
(printf "%s\n" "$list"| jq
".enabled.$app") == null
]]; then
2696 m sudo
-u www-data php occ app
:install $app
2699 u
/etc
/systemd
/system
/$ncbase.service
<<EOF
2701 Description=ncup $ncbase
2702 After=multi-user.target
2706 ExecStart=/usr/local/bin/ncup $ncbase
2708 IOSchedulingClass=idle
2709 CPUSchedulingPolicy=idle
2711 u
/etc
/systemd
/system
/$ncbase.timer
<<EOF
2713 Description=ncup $ncbase timer
2719 WantedBy=timers.target
2721 systemctl
enable --now $ncbase.timer
2722 u
/usr
/local
/bin
/ncup
<<'EOFOUTER'
2725 source /usr/local/lib/err
2727 m() { printf "%s\n" "$*"; "$@"; }
2729 echo failed nextcloud update for $ncbase >&2
2730 # -odf or else systemd will kill the background delivery process
2731 # and the message will sit in the queue until the next queue run.
2733 To: alerts@iankelling.org
2734 From: www-data@$(hostname -f)
2735 Subject: failed nextcloud update for $ncbase
2737 For logs, run: jr -u $ncbase
2741 if [[ $(id -u -n) != www-data ]]; then
2742 echo error: running as wrong user: $(id -u -n), expected www-data
2747 echo error: expected an arg, nextcloud relative base dir
2753 # https://docs.nextcloud.com/server/22/admin_manual/maintenance/update.html?highlight=updater+phar
2754 # the docs claim this is all you need, which is not true.
2755 # You will go to the web ui and it will say that you need to click a button to update,
2756 # or that you can run occ upgrade
2757 m php /var/www/$ncbase/updater/updater.phar -n
2758 # throw a sleep in just because who knows what else is undocumented
2762 chmod +x
/usr
/local
/bin
/ncup
2764 mkdir
-p /var
/www
/cron-errors
2765 chown www-data.www-data
/var
/www
/cron-errors
2766 u
/etc
/cron.d
/$ncbase <<EOF
2767 PATH=/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin
2769 # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/background_jobs_configuration.html
2770 */5 * * * * www-data php -f $ncdir/cron.php --define apc.enable_cli=1 |& log-once nccron
2777 # * exim host conditional config
2781 all_dirs
=(/p
/c
/filesystem
)
2782 for x
in /p
/c
/machine_specific
/*.hosts
/a
/bin
/ds
/machine_specific
/*.hosts
; do
2783 if grep -qxF $HOSTNAME $x; then all_dirs
+=( ${x%.hosts} ); fi
2786 for d
in ${all_dirs[@]}; do
2787 f
=$d/etc
/exim
4/passwd
2788 if [[ -e $f ]]; then
2791 tmp
=($d/etc
/exim
4/*.pem
)
2792 if (( ${#tmp[@]} )); then
2797 if (( ${#files[@]} )); then
2798 sudo rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 ${files[@]} /etc
/exim
4/
2806 # avoid accepting mail for invalid users
2807 # https://wiki.dovecot.org/LMTP/Exim
2808 cat >>/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2810 message = invalid recipient
2811 domains = +local_domains
2812 !verify = recipient/callout=no_cache
2814 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2818 server_socket = /var/run/dovecot/auth-client
2819 server_set_id = $auth1
2824 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2825 # from 30_exim4-config_examples
2829 server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
2830 server_set_id = $auth2
2832 .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
2833 server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
2838 # ** exim: main daemon use non-default config file
2841 # to see the default comments in /etc/default/exim4:
2842 # s update-exim4defaults --force --init
2843 # which will overwrite any existing file
2844 u
/etc
/default
/exim4
<<'EOF'
2845 QUEUERUNNER='combined'
2846 # note: this is duplicated in brc2, 10m here is -q10m there.
2848 COMMONOPTIONS='-C /etc/exim4/my.conf'
2849 UPEX4OPTS='-o /etc/exim4/my.conf'
2850 # i use epanic-clean for alerting if there are bad paniclog entries
2851 E4BCD_WATCH_PANICLOG='no'
2853 # make exim be a nonroot setuid program.
2854 chown Debian-exim
:Debian-exim
/usr
/sbin
/exim4
2855 # needs guid set in order to become Debian-exim
2856 chmod g
+s
,u
+s
/usr
/sbin
/exim4
2857 # need this to avoid error on service reload:
2858 # 2022-08-07 18:44:34.005 [892491] pid 892491: SIGHUP received: re-exec daemon
2859 # 2022-08-07 18:44:34.036 [892491] cwd=/var/spool/exim4 5 args: /usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf
2860 # 2022-08-07 18:44:34.043 [892491] socket bind() to port 25 for address (any IPv6) failed: Permission denied: waiting 30s before trying again (9 more tries)
2861 # note: the daemon gives up and dies after retrying those 9 times.
2862 # I came upon this by guessing and trial and error.
2863 setcap CAP_NET_BIND_SERVICE
+ei
/usr
/sbin
/exim4
2864 u
/etc
/exim
4/trusted_configs
<<'EOF'
2870 u
/etc
/default
/exim4
<<'EOF'
2871 QUEUERUNNER='combined'
2881 # no reason to expect it to ever be there.
2882 rm -fv /etc
/systemd
/system
/exim4.service.d
/nonroot.conf
2886 for d
in /a
/d
/m
/media
/mnt
/nocow
/o
/p
/q
; do
2887 if [[ -d $d ]]; then
2891 u
/etc
/systemd
/system
/exim4.service.d
/nonroot.conf
<<EOF
2893 # see 56.2 Root privilege in exim spec
2894 AmbientCapabilities=CAP_NET_BIND_SERVICE
2895 # https://www.redhat.com/sysadmin/mastering-systemd
2896 # things that seem good and reasonabl.e
2899 # note, in t10 systemd, if one of these is an sshfs mountpoint,
2900 # this whole setting doesnt work. tried it with a newer systemd 250 though
2901 # an nspawn, and it worked there.
2902 InaccessiblePaths=${dirs[@]}
2903 # this gives us the permission denied error:
2904 # socket bind() to port 25 for address (any IPv6) failed: Permission denied
2905 # but we also have to set the file capabilities to avoid the error.
2906 #NoNewPrivileges=yes
2909 # when we get newer systemd
2912 u
/etc
/exim
4/conf.d
/main
/000_local-noroot
<<'EOF'
2913 # see 56.2 Root privilege in exim spec
2914 deliver_drop_privilege = true
2917 300_exim4-config_real_local
2918 600_exim4-config_userforward
2919 700_exim4-config_procmail
2920 800_exim4-config_maildrop
2923 for f
in ${files[@]}; do
2924 echo "# iank: removed due to running nonroot"|u
/etc
/exim
4/conf.d
/router
/$f
2931 # ** $MAIL_HOST|bk|je)
2934 echo|u
/etc
/exim
4/conf.d
/router
/165_backup_local
2936 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2937 # note: some things we don't set that are here by default because they are unused.
2938 dc_local_interfaces=''
2939 dc_eximconfig_configtype='internet'
2940 dc_localdelivery='dovecot_lmtp'
2942 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2943 # recommended if dns is expected to work
2944 CHECK_RCPT_VERIFY_SENDER = true
2945 # default config comment says: If you enable this, you might reject legitimate mail,
2946 # but eggs has had this a long time, so that seems unlikely.
2947 CHECK_RCPT_SPF = true
2948 CHECK_RCPT_REVERSE_DNS = true
2949 CHECK_MAIL_HELO_ISSUED = true
2952 CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl
2953 CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl
2956 #dmarc_tld_file = /etc/public_suffix_list.dat
2964 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2965 dc_relay_nets='defaultnn.b8.nz'
2969 cat >/etc
/exim
4/conf.d
/main
/000_local-nn
<<EOF
2970 # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the
2971 # smarthost config type, not sure.
2972 # failing message on mail-tester.com:
2973 # We check if there is a server (A Record) behind your hostname kd.
2974 # You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software
2975 # https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box
2976 # and this one seemed appropriate from grepping config.
2977 # I originally set this to li.iankelling.org, but then ended up with errors when li tried to send
2978 # mail to kd, so this should basically be a name that no host has as their
2979 # canonical hostname since the actual host sits behind a nat and changes.
2980 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org
2981 # I used this to avoid sender verification, didnt work but it still
2982 # makes sense based on the spec.
2983 hosts_treat_as_local = defaultnn.b8.nz
2985 # Outside nn, we get the default cert location from a debian macro,
2986 # and the cert file is put in place by a certbot hook.
2987 MAIN_TLS_CERTIFICATE = /etc/exim4/fullchain.pem
2988 MAIN_TLS_PRIVATEKEY = /etc/exim4/privkey.pem
2991 u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
<<'EOF'
2993 debug_print = "R: smarthost for $local_part@$domain"
2994 driver = manualroute
2995 domains = ! +local_domains
2996 # comment senders to send most mail through eggs, helps fsfs sender reputation.
2997 # uncomment and optionally move to 188 file to send through my own servers again
2999 transport = smarthost_dkim
3000 route_list = * fencepost.gnu.org::587 byname
3001 host_find_failed = ignore
3002 same_domain_copy_routing = yes
3006 /a
/exe
/cedit defaultnn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3007 10.173.8.1 defaultnn.b8.nz
3013 if [[ ! -e /etc
/exim
4/no-delay-eximids
]]; then
3014 install -o iank
-g iank
<(echo) /etc
/exim
4/no-delay-eximids
3016 u
/etc
/exim
4/conf.d
/router
/155_delay
<<'EOF'
3017 # By default, delay sending email by 30-40 minutes in case I
3020 # Note, if we switch mail_host, the next queue run will
3021 # send the message to mail_host and the delay will be reset.
3022 # That is fine. I could probably set some header to track
3023 # the delay but it is not worth it.
3028 # It hasnt been 30 minutes since we received the message.
3029 # we can avoid delay by adding the header i: or putting the exim message id into a file,
3030 # or pulling "all" into a file.
3031 # note, true false at the end just for easier debugging when pasting into a exim -Mset ID -be.
3032 condition = ${if and { \
3033 {< {$tod_epoch} {${eval10:$received_time + 60*30}}} \
3035 {!bool{${lookup{$message_exim_id}lsearch{/etc/exim4/no-delay-eximids}{true}}}} \
3036 {!bool{${lookup{all}lsearch{/etc/exim4/no-delay-eximids}{true}}}} \
3038 headers_remove = <; i:
3039 domains = ! +local_domains
3040 # uncomment for testing delays to jtuttle
3041 # local_parts = ! root : ! testignore : ! alerts : ! ian-pager : ! daylert
3042 local_parts = ! root : ! testignore : ! alerts : ! jtuttle : ! ian-pager : ! daylert
3043 ignore_target_hosts = ROUTER_DNSLOOKUP_IGNORE_TARGET_HOSTS
3046 u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
<<'EOF'
3047 # copied from /etc/exim4/conf.d/router/200_exim4-config_primary, but
3048 # use vpn transport. lower priority so it overrides the default route.
3049 # Use this in case our vpn fails, we dont send anything without it.
3050 .ifdef DCconfig_internet
3052 debug_print = "R: dnslookup for $local_part@$domain"
3054 domains = ! +local_domains
3055 transport = remote_smtp_vpn
3056 same_domain_copy_routing = yes
3057 ignore_target_hosts = <; 0.0.0.0 ; 127.0.0.0/8 ; 192.168.0.0/16 ; 172.16.0.0/12 ; 10.0.0.0/8 ; 169.254.0.0/16 ; 255.255.255.255 ; ::/128 ; ::1/128 ; fc00::/7 ; fe80::/10 ; 100::/64
3063 # note on backups: I used to do an automatic sshfs and restricted
3064 # permissions to a specific directory on the remote server, /bu/mnt,
3065 # which required using a dedicated user, but realized smtp will be
3066 # more reliable and less fuss. If I ever need that again, see the
3067 # history of this file, and bum in brc2.
3068 u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
<<'EOF'
3071 # b is just an arbirary short string
3072 data = b@eximbackup.b8.nz
3073 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3074 # note, to test this, i could temporarily allow testignore.
3075 # alerts avoids potential mail loop. root is already
3076 # redirected earlier, so that is just being overly cautious.
3077 local_parts = ! root : ! testignore : ! alerts : ! jtuttle : ! ian-pager : ! daylert
3079 errors_to = alerts@iankelling.org
3084 # This allows for forwarded mail to not get most rcpt checks, especially SPF,
3085 # which would incorrectly get denied.
3086 u
/etc
/exim
4/host_local_deny_exceptions
<<'EOF'
3091 # cron email from smarthost hosts will automatically be to
3092 # USER@FQDN. I redirect that to alerts@, on the smarthosts, but in
3093 # case that doesn't work, we still want to accept that mail, but not
3094 # from any host except the smarthosts. local_hostnames and this rule
3095 # is for that purpose.
3096 u
/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
3099 domains = +local_hostnames
3102 # for testing bounce behavior
3104 # senders = testlist-bounces+test=zroe.org@fsf.org
3105 # message = iank-bounce
3107 echo|u
/etc
/exim
4/conf.d
/router
/880_universal_forward
3110 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3111 MAILDIR_HOME_MAILDIR_LOCATION = /m/md/Sent
3115 u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
<<'EOF'
3116 # ian: save a copy of sent mail. i thought of other ways to
3117 # do this, for example, to only save sent mail that is not sent
3118 # from my mail client which saves a copy by default, but in the
3119 # end, it seems simplest to turn that off. We want to save
3120 # external mail sent by smarthosts.
3123 domains = ! +local_domains
3124 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3125 data = vojdedIdNejyebni@b8.nz
3130 # for iank@fsf.org, i have mail.fsf.org forward it to fsf@iankelling.org.
3131 # and also have mail.iankelling.org whitelisted as a relay domain.
3132 # I could avoid that if I changed this to submit to 587 with a
3133 # password like a standard mua.
3134 u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
<<'EOF'
3135 # ian: copied from /etc/exim4/conf.d/router/200_exim4-config_primary, and added senders = and
3136 # replaced DCsmarthost with hostname
3138 debug_print = "R: smarthost for $local_part@$domain"
3139 driver = manualroute
3140 domains = ! +local_domains
3142 transport = remote_smtp_smarthost
3143 route_list = * mail.fsf.org::587 byname
3144 host_find_failed = ignore
3145 same_domain_copy_routing = yes
3149 debug_print = "R: smarthost for $local_part@$domain"
3150 driver = manualroute
3151 domains = ! +local_domains
3152 senders = *@posteo.net
3153 transport = remote_smtp_smarthost
3154 route_list = * posteo.de::587 byname
3155 host_find_failed = ignore
3156 same_domain_copy_routing = yes
3160 # Greping /etc/exim4, unqualified mails this would end up as
3161 # a return path, so it should go somewhere we will see.
3162 # The debconf output about mailname is as follows:
3163 # The 'mail name' is the domain name used to 'qualify' mail addresses without a domain
3165 # This name will also be used by other programs. It should be the single, fully
3166 # qualified domain name (FQDN).
3167 # Thus, if a mail address on the local host is foo@example.org, the correct value for
3168 # this option would be example.org.
3169 # This name won\'t appear on From: lines of outgoing messages if rewriting is enabled.
3170 echo iankelling.org
> /etc
/mailname
3173 # mail.iankelling.org so local imap clients can connect with tls and
3174 # when they happen to not be local.
3175 # todo: this should be 10.8.0.4
3177 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3178 # note: i put nn.b8.nz into bind for good measure
3179 10.173.8.2 nn.b8.nz mx.iankelling.org
3182 # note: systemd-resolved will consult /etc/hosts, dnsmasq wont. this assumes
3183 # weve configured this file in dnsmasq if we are using it.
3184 /a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf
<<'EOF' || [[ $? == 1 ]]
3185 server=/mx.iankelling.org/127.0.1.1
3187 # I used to use debconf-set-selections + dpkg-reconfigure,
3188 # which then updates this file
3189 # but the process is slower than updating it directly and then I want to set other things in
3190 # update-exim4.conf.conf, so there's no point.
3191 # The file is documented in man update-exim4.conf,
3192 # except the man page is not perfect, read the bash script to be sure about things.
3194 # The debconf questions output is additional documentation that is not
3195 # easily accessible, but super long, along with the initial default comment in this
3196 # file, so I've saved that into ./mail-notes.conf.
3198 # # TODO: remove mx.iankelling.org once systems get updated mail-setup from jan 2022
3199 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3200 # man page: is used to build the local_domains list, together with "localhost"
3201 # this is duplicated in a later router.
3202 dc_other_hostnames='iankelling.org;zroe.org;r2e.iankelling.org;mx.iankelling.org;!je.b8.nz;!bk.b8.nz;*.b8.nz;b8.nz'
3206 # dmarc. not used currently
3207 f
=/etc
/cron.daily
/refresh-dmarc-tld-file
3211 wget -q -N https://publicsuffix.org/list/public_suffix_list.dat
3217 ## we use this host to monitor MAIL_HOST and host a mail server for someone
3220 # No clamav on je, it has 1.5g memory and clamav uses most of it.
3222 # No clamav on MAIL_HOST because it is just a waste of useful cpu
3223 # time and memory when I'm running on an x200, and it takes 30
3224 # seconds to shut down.
3226 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3227 # je.b8.nz will run out of memory with freshclam
3228 av_scanner = clamd:/var/run/clamav/clamd.ctl
3231 cat >> /etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
3233 malware = */defer_ok
3234 !condition = ${if match {$malware_name}{\N^Heuristic\N}}
3235 message = This message was detected as possible malware ($malware_name).
3238 !hosts = +iank_trusted
3240 condition = ${if def:malware_name}
3241 remove_header = Subject:
3242 add_header = Subject: [Clamav warning: $malware_name] $h_subject
3243 log_message = heuristic malware warning: $malware_name
3246 # fdate = future date. # tdate = temporary date.
3247 condition = ${if def:h_fdate}
3248 remove_header = fdate:
3254 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3258 sed -r -f - /etc
/init.d
/exim4
<<'EOF' |u /etc/init.d/exim4in
3259 s,/etc/default/exim4,/etc/default/exim4in,g
3260 s,/run/exim4/exim.pid,/run/exim4/eximin.pid,g
3261 s,(^[ #]*Provides:).*,\1 exim4in,
3262 s,(^[ #]*NAME=).*,\1"exim4in",
3264 chmod +x
/etc
/init.d
/exim4in
3265 u
/etc
/systemd
/system
/exim4in.service.d
/alwaysrestart.conf
<<'EOF'
3267 # needed to continually restart
3268 StartLimitIntervalSec=0
3272 # time to sleep before restarting a service
3276 u
/etc
/default
/exim4in
<<'EOF'
3277 # defaults but no queue runner and alternate config dir
3279 COMMONOPTIONS='-oP /run/exim4/eximin.pid'
3280 UPEX4OPTS='-d /etc/myexim4'
3283 echo bk.b8.nz
> /etc
/mailname
3284 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3285 # man page: is used to build the local_domains list, together with "localhost"
3286 dc_other_hostnames='amnimal.ninja;expertpathologyreview.com;bk.b8.nz'
3292 echo je.b8.nz
> /etc
/mailname
3293 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3294 dc_other_hostnames='je.b8.nz'
3297 # ** not MAIL_HOST|bk|je
3299 echo|u
/etc
/exim
4/conf.d
/router
/155_delay
3300 # this one should be removed for all non mail_hosts. note
3301 # bk and je never become mail_host
3302 echo|u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
3303 echo|u
/etc
/exim
4/conf.d
/router
/160_backup_redir
3304 echo|u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
3305 echo|u
/etc
/exim
4/conf.d
/router
/185_sentarchive
3306 echo|u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
3307 # Note, in general we could submit to smarthosts on non MAIL_HOST.
3308 # however, delayed mail makes this inconvenient, because I
3309 # occasionally want to send an email from a non-MAIL_HOST and then
3310 # turn off that computer or travel with it so it is disconnected.
3311 # It is also probably easier to setup emacs to delay messages, but
3312 # that would mean we need to keep emacs running, this is much
3314 echo|u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
3315 echo|u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
3316 echo|u
/etc
/exim
4/conf.d
/rcpt_local_acl
3317 echo|u
/etc
/exim
4/conf.d
/main
/000_local-nn
3321 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3322 MAIN_TLS_CERTIFICATE = /etc/exim4/certs/$wghost/fullchain.pem
3323 MAIN_TLS_PRIVATEKEY = /etc/exim4/certs/$wghost/privkey.pem
3324 # so we can maintiain the originals of the backups.
3325 # we wouldnt want this if we were dealing with any other
3326 # local deliveries, but we sent all others to the smarthost
3327 # which then strips the headers.
3328 envelope_to_remove = false
3329 return_path_remove = false
3333 # catches things like cronjob email
3334 u
/etc
/exim
4/conf.d
/router
/880_universal_forward
<<'EOF'
3337 domains = +local_domains
3338 data = alerts@iankelling.org
3342 for unit
in ${nn_progs[@]}; do
3343 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
3347 # dont i dont care if defaultnn section gets left, it wont
3349 echo |
/a
/exe
/cedit nn
/etc
/hosts ||
[[ $?
== 1 ]]
3350 echo |
/a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf ||
[[ $?
== 1 ]]
3352 # note: condition duplicated at else
3355 install -d -g Debian-exim
-o Debian-exim
-m 771 /bu
/md
3356 if [[ -e /bu
/md
/cur
&& $
(stat
-c %u
/bu
/md
/cur
) == 1000 ]]; then
3357 chown
-R Debian-exim
:Debian-exim
/bu
/md
3359 u
/etc
/exim
4/conf.d
/transport
/30_backup_maildir
<<EOF
3360 # modified debian maildir transport
3365 # note, no return path or envelope added
3367 directory_mode = 0700
3369 mode_fail_narrower = false
3372 u
/etc
/exim
4/conf.d
/router
/165_backup_local
<<'EOF'
3373 ### router/900_exim4-config_local_user
3374 #################################
3377 debug_print = "R: local_user for $local_part@$domain"
3379 domains = eximbackup.b8.nz
3380 transport = backup_maildir
3383 # Bind to wghole to receive mailbackup.
3384 wgholeip
=$
(sed -rn 's/^ *Address *= *([^/]+).*/\1/p' /etc
/wireguard
/wghole.conf
)
3385 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3386 dc_other_hostnames='eximbackup.b8.nz'
3387 dc_local_interfaces='127.0.0.1;::1;$wgholeip'
3390 # wghole & thus exim will fail to start without internet connectivity.
3391 u
/etc
/systemd
/system
/exim4.service.d
/backup.conf
<<'EOF'
3393 StartLimitIntervalSec=0
3400 else # if $bhost_t; then
3401 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3402 # Note: If theres like a temporary problem where mail gets sent to
3403 # one of these hosts, if exim isnt listening, it will be a temporary error
3404 # instead of a permanent 5xx.
3405 dc_local_interfaces='127.0.0.1;::1'
3407 rm -fv /etc
/systemd
/system
/exim4.service.d
/backup.conf
3409 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3410 dc_eximconfig_configtype='smarthost'
3411 dc_smarthost='$smarthost'
3414 hostname
-f |u
/etc
/mailname
3415 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3416 # The manpage incorrectly states this will do header rewriting, but
3417 # that only happens if we have dc_hide_mailname is set.
3418 dc_readhost='iankelling.org'
3419 # Only used in case of bounces.
3420 dc_localdelivery='maildir_home'
3428 # ** $MAILHOST|bk, things that belong at the end
3431 # config for the non-nn exim. note, it uses not default dir, but we
3432 # generate that into the default config file
3433 m rsync
-ra --delete --delete-excluded \
3434 --exclude=/conf.d
/router
/161_backup_redir_nn \
3435 --exclude=/conf.d
/router
/186_sentarchive_nn \
3436 --exclude=/conf.d
/main
/000_local-nn
/etc
/exim
4/ /etc
/myexim4
3437 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3438 # this makes it easier to see which exim is doing what
3439 log_file_path = /var/log/exim4/my%s
3444 cat >/etc
/logrotate.d
/myexim
<<'EOF'
3445 /var/log/exim4/mymain /var/log/exim4/myreject {
3453 /var/log/exim4/mypanic {
3464 # If we ever wanted to have a separate spool,
3465 # we could do it like this.
3466 # cat >>/etc/exim4/conf.d/main/000_local-nn <<'EOF'
3467 # spool_directory = /var/spool/myexim4
3469 cat >>/etc
/myexim
4/update-exim4.conf.conf
<<'EOF'
3470 dc_eximconfig_configtype='smarthost'
3471 dc_smarthost='nn.b8.nz'
3476 # config for the non-nn exim
3477 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3478 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail2.iankelling.org
3484 u
/etc
/myexim
4/conf.d
/router
/185_sentarchive
<<'EOF'
3487 domains = ! +local_domains
3488 senders = <; *@fsf.org ; *@posteo.net
3489 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3490 data = vojdedIdNejyebni@b8.nz
3494 u
/etc
/myexim
4/conf.d
/router
/160_backup_redir
<<'EOF'
3497 # i dont email myself from my own machine much, so lets ignore that.
3498 domains = ! +local_domains
3499 senders = <; *@fsf.org ; *@posteo.net
3500 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3501 # b is just an arbirary short string
3502 data = b@eximbackup.b8.nz
3503 # note, to test this, i could temporarily allow testignore.
3504 # alerts avoids potential mail loop.
3505 local_parts = ! root : ! testignore : ! alerts : ! daylert
3507 errors_to = alerts@iankelling.org
3510 # for bk, we have a exim4in.service that will do this for us.
3511 m update-exim4.conf
-d /etc
/myexim4
3517 # ** bind mount setup
3518 # put spool dir in directory that spans multiple distros.
3519 # based on http://www.postfix.org/qmgr.8.html and my notes in gnus
3522 sdir
=/var
/spool
/exim4
3523 # we only do this if our system has $dir
3525 # this used to do a symlink, but, in the boot logs, /nocow would get mounted succesfully,
3526 # about 2 seconds later, exim starts, and immediately puts into paniclog:
3527 # honVi-0000u3-82 Failed to create directory "/var/spool/exim4/input": No such file or directory
3528 # so, im trying a bind mount to get rid of that.
3529 if [[ -e /nocow
]]; then
3530 if ! grep -Fx "/nocow/exim4 /var/spool/exim4 none bind 0 0" /etc
/fstab
; then
3531 echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc
/fstab
3533 u
/etc
/systemd
/system
/exim4.service.d
/override.conf
<<'EOF'
3535 # without local-fs on exim, we get these kind of errors in paniclog on shutdown:
3536 # Failed to create spool file /var/spool/exim4//input//1jCLxz-0008V4-V9-D: Permission denied
3537 After=local-fs.target
3540 ExecStartPre=/usr/local/bin/exim-nn-iptables
3542 if ! mountpoint
-q $sdir; then
3543 stopifactive exim4 exim4in
3544 if [[ -L $sdir ]]; then
3547 if [[ ! -e $dir && -d $sdir ]]; then
3550 if [[ ! -d $sdir ]]; then
3552 m
chmod 000 $sdir # only want it to be used when its mounted
3560 # ** exim/spool uid setup
3561 # i have the spool directory be common to distro multi-boot, so
3562 # we need the uid to be the same. 608 cuz it's kind of in the middle
3563 # of the free system uids.
3564 IFS
=:; read -r _ _ uid _
< <(getent passwd Debian-exim ||
:) ||
:; unset IFS
3565 IFS
=:; read -r _ _ gid _
< <(getent group Debian-exim ||
:) ||
:; unset IFS
3566 if [[ ! $uid ]]; then
3567 # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options
3568 m adduser
--uid 608 --system --group --quiet --home /var
/spool
/exim4 \
3569 --no-create-home --disabled-login --force-badname Debian-exim
3570 elif [[ $uid != 608 ]]; then
3571 stopifactive exim4 exim4in
3572 m usermod
-u 608 Debian-exim
3573 m groupmod
-g 608 Debian-exim
3574 m usermod
-g 608 Debian-exim
3575 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -uid $uid -execdir chown
-h 608 {} +
3576 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -gid $gid -execdir chgrp
-h 608 {} +
3579 # * start / stop services
3581 reifactive dnsmasq nscd
3584 m systemctl daemon-reload
3587 # optimization, this only needs to run once.
3588 if [[ ! -e /sys
/class
/net
/wghole
]]; then
3589 # checking bhost_t is redundant, but could help us catch errors.
3590 if $bhost_t ||
[[ -e /etc
/wireguard
/wghole.conf
]]; then
3591 # todo: in mail-setup, we have a static list of backup hosts, not *y
3592 m systemctl
--now enable wg-quick@wghole
3596 # optimization, this only needs to be run once
3597 if [[ ! -e /var
/lib
/prometheus
/node-exporter
/exim_paniclog.prom
]]; then
3598 sysd-prom-fail-install epanicclean
3599 m systemctl
--now enable epanicclean
3604 /a
/exe
/web-conf apache2 je.b8.nz
3607 /a
/exe
/web-conf apache2 mail2.iankelling.org
3611 # optimization, this only needs to run once.
3612 if [[ ! -e /etc
/exim
4/fullchain.pem
]]; then
3613 m
/a
/bin
/ds
/mail-cert-cron
-1
3614 m systemctl
--now enable mailcert.timer
3619 m systemctl
--now enable mailnn mailnnroute
3622 # we use dns to start wg
3626 m systemctl
--now enable unbound
3630 # If these have changes, id rather manually restart it, id rather
3631 # not restart and cause temporary errors
3635 m systemctl
--now enable $vpnser
3639 if ! systemctl is-active clamav-daemon
>/dev
/null
; then
3640 m systemctl
--now enable clamav-daemon
3641 out
=$
(rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/filesystem
/etc
/systemd
/system
/epanicclean.service
/etc
/systemd
/system
)
3646 # note, this will cause paniclog entries because it takes like 45
3647 # seconds for clamav to start, i use ./epanic-clean to remove
3652 # start spamassassin/dovecot before exim.
3653 sre dovecot spamassassin
3654 # Wait a bit before restarting exim, else I get a paniclog entry
3655 # like: spam acl condition: all spamd servers failed. But I'm tired
3656 # of waiting. I'll deal with this some other way.
3659 m systemctl
--now enable mailclean.timer
3662 # < 2.1 (eg: in t9), uses a different data format which required manual
3663 # migration. dont start if we are running an old version.
3664 if dpkg
--compare-versions "$(dpkg -s radicale | awk '$1 == "Version
:" { print $2 }')" ge
2.1; then
3665 m systemctl
--now enable radicale
3670 # for debugging dns issues
3673 systemctl
enable --now logrotate-fast.timer
3677 # last use of $reload happens in previous block
3678 rm -f /var
/local
/mail-setup-reload
3682 $MAIL_HOST|bk|je|li
)
3683 # on li, these are never started, except $vpnser
3687 soff radicale mailclean.timer dovecot spamassassin
$vpnser mailnn clamav-daemon
3695 m systemctl
--now enable mailbindwatchdog
3698 soff mailbindwatchdog
3707 # * mail monitoring / testing
3709 # note, to test clamav, send an email with body that only contains
3710 # https://en.wikipedia.org/wiki/EICAR_test_file
3711 # which set malware_name to Eicar-Signature
3714 # note: cronjob "ian" also does some important monitoring
3715 # todo: this will sometimes cause an alert because mailtest-check will run
3716 # before we have setup network namespace and spamassassin
3717 u
/etc
/cron.d
/mailtest
<<EOF
3719 PATH=/usr/bin:/bin:/usr/local/bin
3720 MAILTO=daylert@iankelling.org
3721 */5 * * * * $u send-test-forward |& log-once send-test-forward
3722 */10 * * * * root chmod -R g+rw /m/md/bounces |& log-once -1 bounces-chmod
3723 # if a bounce happened yesterday, dont let it slip through the cracks
3724 8 1 * * * root export MAILTO=alerts@iankelling.org; [[ -s /var/log/exim4/mainlog.1 ]] && awk '\$5 == "**"' /var/log/exim4/mainlog.1
3728 m sudo rsync
-ahhi --chown=root
:root
--chmod=0755 \
3729 /b
/ds
/mailtest-check
/b
/ds
/check-remote-mailqs
/usr
/local
/bin
/
3730 u
/etc
/systemd
/system
/mailtest-check.service
<<'EOF'
3732 Description=mailtest-check
3733 After=local-fs.target
3734 StartLimitIntervalSec=0
3738 ExecStart=/usr/local/bin/mailtest-check slow
3743 WantedBy=graphical.target
3745 sysd-prom-fail-install mailtest-check
3749 test_froms
=(ian@iankelling.org z@zroe.org iank@gnu.org
)
3750 test_tos
=(testignore@expertpathologyreview.com testignore@je.b8.nz testignore@amnimal.ninja jtuttle@gnu.org
)
3752 cat >>/etc
/cron.d
/mailtest
<<EOF
3754 0 10 * * 5 root echo "weekly alert. You are not in the matrix."
3755 2 * * * * root check-remote-mailqs |& log-once check-remote-mailqs
3759 test_froms
=(testignore@amnimal.ninja testignore@expertpathologyreview.com
)
3760 test_tos
=(testignore@iankelling.org testignore@je.b8.nz
)
3761 # We dont need to send from different addresses to the same
3762 # address. this breaks down our nice elegant logic of building up
3763 # froms and tos , so I just handle expertpath in a special case
3764 # below and set the to: to be testignore@zroe.org. If we did sent
3765 # that way, it would also mess up our mailtest-check logic that
3766 # finds which messages to check.
3767 # for example: from testignore@amnimal.ninja to: testignore@iankelling.org testignore@zroe.org
3768 # that would become 2 messages and we'd only check 1.
3771 test_froms
=(testignore@je.b8.nz
)
3772 test_tos
=(testignore@iankelling.org testignore@zroe.org testignore@expertpathologyreview.com testignore@amnimal.ninja
)
3776 # Dont put these test messages into the sent folder or else it will
3777 # overwhelm it, plus i dont want to save a copy at all.
3778 # Plus addresses we generally want to ignore.
3779 u
/etc
/exim
4/ignore-sent
<<EOF
3780 $(printf "%s\n" ${test_tos[@]})
3781 vojdedIdNejyebni@b8.nz
3785 cat >/usr
/local
/bin
/send-test-forward
<<'EOF'
3787 # we remove from the queue older than 4.3 minutes since we send every 5 minutes.
3789 $(/usr/sbin/exiqgrep -o 260 -i -r '^(testignore@(iankelling\.org|zroe\.org|expertpathologyreview\.com|amnimal\.ninja|je\.b8\.nz)|jtuttle@gnu\.org)$')
3791 if (( ${#olds[@]} )); then
3792 /usr/sbin/exim -Mrm "${olds[@]}" >/dev/null
3795 for test_from
in ${test_froms[@]}; do
3797 test_to
=${test_tos[0]}
3798 for t
in ${test_tos[@]:1}; do
3799 if [[ $test_from == *@gnu.org
&& $t == *@gnu.org
]]; then
3805 testignore@expertpathologyreview.com
)
3806 test_to
=testignore@zroe.org
3810 cat >>/usr
/local
/bin
/send-test-forward
<<EOFOUTER
3811 /usr/sbin/exim -odf -f $test_from -t <<EOF
3814 Subject: test \$(date +%Y-%m-%dT%H:%M:%S%z) \$EPOCHSECONDS
3816 /usr/local/bin/send-test-forward
3820 m
chmod +x
/usr
/local
/bin
/send-test-forward
3823 soff mailtest-check.service
3824 rm -fv /etc
/cron.d
/mailtest \
3825 /var
/lib
/prometheus
/node-exporter
/mailtest-check.prom
* \
3826 /var
/local
/cron-errors
/check-remote-mailqs
*
3833 m sudo
-u $u mkdir
-p /home
/$u/.cache
3834 set -- /m
/mucache
/home
/$u/.cache
/mu
/m
/.mu
/home
/$u/.mu
3839 if [[ ! -L $f ]]; then
3840 if [[ -e $f ]]; then
3843 m sudo
-u $u ln -sf -T $target $f
3848 # /etc/alias setup is debian specific, and exim postinst script sets up
3849 # an /etc/alias from root to the postmaster, based on the question
3850 # exim4-config exim4/dc_postmaster, as long as there exists an entry for
3851 # root, or there was no preexisting aliases file. postfix won\'t set up
3852 # a root to $postmaster alias if it\'s already installed. Easiest to
3853 # just set it ourselves.
3855 # debconf question for postmaster:
3856 # Mail for the 'postmaster', 'root', and other system accounts needs to be redirected
3857 # to the user account of the actual system administrator.
3858 # If this value is left empty, such mail will be saved in /var/mail/mail, which is not
3860 # Note that postmaster\'s mail should be read on the system to which it is directed,
3861 # rather than being forwarded elsewhere, so (at least one of) the users listed here
3862 # should not redirect their mail off this machine. A 'real-' prefix can be used to
3863 # force local delivery.
3864 # Multiple user names need to be separated by spaces.
3865 # Root and postmaster mail recipient:
3871 # eval: (outline-minor-mode)
3872 # outline-regexp: "\\( *\\)# [*]\\{1,8\\} "
3874 # this is combined with defining outline-level in init.el