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 # eximbackup folder is /bu/md
17 # it is cleaned up by mail-backup-clean, which is run by btrbk-run
19 # shellcheck disable=SC2254 # makes for a lot of unneeded quotes
22 # perusing through /el/mainlog without test messages:
23 # &!testignore|jtuttle|
25 #&! testignore|jtuttle|eximbackup|/usr/sbin/exim4 -bpu
27 # todo: check new macro DKIM_TIMESTAMPS
29 # todo: check if REMOTE_SMTP_INTERFACE or REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE can simplify my or fsfs config
31 # todo: max line length macro changed in t11. look into it
32 # todo: check that all macros we use are still valid in t11
34 # todo: setup an alert for bouncing test emails.
36 # todo: bounces to my fsf mail can come from fsf@iankelling.org,
37 # think about making bounces go from the original address.
39 # todo: add a prometheus alert for dovecot.
41 # todo: handle errors like this:
42 # Mar 02 12:44:26 kw systemd[1]: exim4.service: Found left-over process 68210 (exim4) in control group while starting unit. Ignoring.
43 # Mar 02 12:44:26 kw systemd[1]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
44 #eg: on eggs, on may 1st, ps grep for exim, 2 daemons running. 1 leftover from a month ago
45 #Debian-+ 1954 1 0 36231 11560 4 Apr02 ? 00:40:25 /usr/sbin/exim4 -bd -q30m
46 #Debian-+ 23058 1954 0 36821 10564 0 20:38 ? 00:00:00 /usr/sbin/exim4 -bd -q30m
48 # 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.
49 # todo: consider hardening cups listening on 0.0.0.0
50 # todo: stop/disable local apache, and rpc.mountd, and kdeconnect when not in use.
52 # todo: hosts should only allow external mail that is authed and
53 # destined for backup route. it is a minor issue since traffic is
54 # limited to the wghole network.
56 # todo: emailing info@amnimal.ninja produces a bounce, user doesn't exist
57 # instead of a simple rejection like it should.
59 # todo: run mailping test after running, or otherwise
60 # clear out terminal alert
62 # todo: disable postgrey
64 # todo: in testforward-check, we should also look
66 # todo: test that bounces dont help create valid mailtest-check
68 # todo: move mail stuff in distro-end into this file
70 # todo: consider rotating dkim & publishing key so every past email I sent
71 # isnt necessarily signed
73 # todo: consider how to get clamav out of Debian-exim group
74 # so it cant read/write the whole mail spool, for better
77 # todo: create a cronjob to update or warn on expiring dnssec keys
79 # todo: we should test failed mail daily or so
80 # failed cronjob, failed sysd-log-once,
81 # a local bounce from a cronjob, a local bounce
82 # to a bad remote address, perhaps a local failure
83 # when the sending daemon is down.
84 # And send an alert email if no alerts have been sent
85 # in 2 or 3 days or something. todo, test cron mail on li.
87 # todo: look at mailinabox extra dns records, note these changelogs:
88 # - 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.
89 # - 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.
92 # todo: mailtest-check failure on remote hosts is not going to alert me.
94 # todo: test mail failure as well as success.
96 # todo: validate that mailtest-check is doing dnsbl checks.
98 # background: I want to run exim in a network namespace so it can send
99 # and receive through a vpn. This is needed so it can do ipv6, because
100 # outside the namespace if we dont have ipv6, to send ipv6 through the
101 # vpn, we have to send all our ipv6 through the vpn. I did this for a
102 # long time, it was fine, but it causes various pains, like increased
103 # latency, increased recaptcha because my ip is from a data center, just
104 # various issues I dont want on all the time. The problem with the
105 # namespace is that all kinds of programs want to invoke exim, but they
106 # wont be in the namespace. I could replace exim with a wrapper that
107 # jumps into the namespace, i tried that, it works fine. One remaining
108 # problem was that I would have needed to hook into exim upgrades to
109 # move exim and replace it with my wrapper script. Also, my script to
110 # join the namespace is not super reliable because it uses a pgrep.
111 # Instead, I should have created a systemd service for a process that
112 # will never die and just writes its pid somewhere convenient.
113 # That implementation
117 # user ALL=(ALL) /usr/sbin/exim4
119 # move exim4 to eximian, use this script for exim4:
122 # if ip a show veth1-mail &>/dev/null; then
123 # /usr/sbin/eximian "$@"
127 # if [[ $USER && $USER != root ]]; then
130 # pid=$(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf")
132 # sudo nsenter -t $pid -n -m sudo -u $USER /usr/sbin/eximian "$@"
134 # nsenter -t $pid -n -m /usr/sbin/eximian "$@"
138 # an alternate solution: there is a small setguid program for
139 # network namespaces in my bookmarks.
141 # However, the solution I went with is: have 2 exim
142 # configs. A nonstandard location for the daemon that runs
143 # in the namespace. For all other invocations, it uses
144 # the default config location, which is altered to be
145 # in a smarthost config which sends mail to the deaemon.
147 # I have a bash function, enn to invoke exim like the daemon is running.
148 # and mailbash to just enter its network namespace.
150 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
154 if [[ -s /usr
/local
/lib
/err
]]; then
155 source /usr
/local
/lib
/err
156 elif [[ -s /a
/bin
/errhandle
/err
]]; then
157 source /a
/bin
/errhandle
/err
159 echo "no err tracing script found"
162 source /a
/bin
/distro-functions
/src
/identify-distros
163 source /a
/bin
/distro-functions
/src
/package-manager-abstractions
165 # has nextcloud_admin_pass in it
166 f
=/p
/c
/machine_specific
/$HOSTNAME/mail
168 # shellcheck source=/p/c/machine_specific/bk/mail
173 [[ $EUID == 0 ]] ||
exec sudo
-E "${BASH_SOURCE[0]}" "$@"
175 # note, this is hardcoded in /etc/exim4/conf.d/main/000_local
181 Usage: ${0##*/} anything_here_to_debug
182 Setup exim4 & dovecot & related things
184 -h|--help Print help and exit.
189 # debug output if we pass any arg
195 ####### instructions for icedove #####
196 # Incoming mail server: mail.iankelling.org, port 143, username iank, connection security starttls, authentication method normal password,
197 # then click advanced so it accepts it.
198 # we could also just use 127.0.0.1 with no ssl
200 # hamburger -> preferences -> preferences -> advanced tab -> config editor button -> security.ssl.enable_ocsp_must_staple = false
201 # background: dovecot does not yet have ocsp stapling support
202 # reference: https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921
204 # for phone, k9mail, fdroid, same thing but username alerts, pass in ivy-pass.
205 # also, bk.b8.nz for secondary alerts, username is iank. same alerts pass.
206 # fetching mail settings: folder poll frequency 10 minutes.
207 # account settings, fetching mail, push folders: All. Then disable the persistent notification.
211 # * perstent password instructions
212 # Note: for cert cron, we need to manually run first to accept known_hosts
215 # # for hosts which have all private files I just use the same user
216 # # for other hosts, each one get\'s their own password.
217 # # for generating secure pass, and storing for server too:
220 # apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f
221 # s sed -i "/^$host:/d" /p/c/filesystem/etc/exim4/passwd
222 # echo "$host:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd
223 # #reference: exim4_passwd_client(5)
224 # dir=/p/c/machine_specific/$host/filesystem/etc/exim4
226 # echo "mail.iankelling.org:$host:$(<$f)" > $dir/passwd.client
227 # # then run this script
229 # # dovecot password, i just need 1 as I\'m the only user
230 # mkdir /p/c/filesystem/etc/dovecot
231 # echo "iank:$(doveadm pw -s SHA512-CRYPT)::::::" >>/p/c/filesystem/etc/dovecot/users
233 ####### end perstent password instructions ######
237 # # Remove 1 level of comments in this section, set the domain var
238 # # for the domain you are setting up, then run this and copy dns settings
240 # domain=iankelling.org
241 # c /p/c/filesystem/etc/exim4
242 # # this has several bugs addressed in comments, but it was helpful
243 # # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
245 # openssl genrsa -out $domain-private.pem 2048
246 # # Then, to get the public key strings to put in bind:
248 # # selector is needed for having multiple keys for one domain.
249 # # I dun do that, so just use a static one: li
250 # # Debadmin page does not have v=, fastmail does, and this
251 # # says it\'s recommended in 3.6.1, default is DKIM1 anyways.
252 # # https://www.ietf.org/rfc/rfc6376.txt
253 # # Join and print all but first and last line.
254 # # last line: swap hold & pattern, remove newlines, print.
255 # # lines 2+: append to hold space
256 # echo "bind txt record: remember to truncate $domain so its relative to the bind zone"
258 # a._domainkey.$domain TXT (
259 # "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')" )
261 # # sed explanation: skip the first few lines, then put them into the hold space, then
262 # # on the last line, back to the patern space, remove the newlines, then add a newline
263 # # at the last char - 240, because bind txt records need strings <=255 chars,
264 # # other dkim stuff at the begining is is 25 chars, and the pubkey is 393, so this
265 # # leaves us a bit of extra room at the end and a bunch at the beginning.
267 # # selector was also put into /etc/exim4/conf.d/main/000_local,
271 # # 2017-02 dmarc policies:
272 # # host -t txt _dmarc.gmail.com
273 # # yahoo: p=reject, hotmail: p=none, gmail: p=none, fastmail none for legacy reasons
274 # # there were articles claiming gmail would be changing
275 # # to p=reject, in early 2017, which didn\'t happen. I see no sources on them. It\'s
276 # # expected to cause problems
277 # # with a few old mailing lists, copying theirs for now.
279 # echo "dmarc dns, name: _dmarc value: v=DMARC1; p=none; rua=mailto:mailauth-reports@$domain"
283 # # 2017-02 spf policies:
284 # # host -t txt lists.fedoraproject.org
285 # # google ~all, hotmail ~all, yahoo: ?all, fastmail ?all, outlook ~all
286 # # i include fastmail\'s settings, per their instructions,
287 # # and follow their policy. In mail in a box, or similar instructions,
288 # # I\'ve seen recommended to not use a restrictive policy.
290 # # to check if dns has updated, you do
291 # host -a mesmtp._domainkey.$domain
294 # # setting it to iankelling.org would work the same, but this
295 # # is more flexible, I could change where mail.iankelling.org pointed.
297 # mx records, 2 records each, for * and empty domain
298 # pri 10 mail.iankelling.org
302 # from brc2, run dnsecgen then dsign, update named.local.conf, publish keys to registrar
304 # * functions & constants
306 pre
="${0##*/}:${SSH_CLIENT:+ $HOSTNAME:}"
307 m
() { printf "$pre %s\n" "$*"; "$@"; }
308 e
() { printf "$pre %s\n" "$*"; }
309 err
() { printf "$pre %s\n" "$*" >&2; exit 1; }
312 # This file is so if we fail in the middle and rerun, we dont lose state
313 if [[ -e /var
/local
/mail-setup-reload
]]; then
316 u
() { # update file. note: duplicated in brc
317 local tmp tmpdir dest
="$1"
318 local base
="${dest##*/}"
319 local dir
="${dest%/*}"
320 if [[ $dir != "$base" ]]; then
321 # dest has a directory component
327 tmp
=$
(rsync
-ic $tmpdir/"$base" "$dest")
331 if [[ $dest == /etc
/systemd
/system
/* ]]; then
332 touch /var
/local
/mail-setup-reload
339 key
="$1" value
="$2" section
="$3"
340 file="/etc/radicale/config"
341 sed -ri "/ *\[$section\]/,/^ *\[[^]]+\]/{/^\s*${key}[[:space:]=]/d};/ *\[$section\]/a $key = $value" "$file"
345 # ignore services that dont exist
346 if systemctl
cat $service &>/dev
/null
; then
347 m systemctl disable
--now $service
354 m systemctl restart
$service
355 # Optimization for exim,
356 # is-enabled: 0m0.015s
358 # It is related to this message:
359 # exim4.service is not a native service, redirecting to systemd-sysv-install.
360 # Executing: /lib/systemd/systemd-sysv-install enable exim4
361 enabled
=$
(systemctl is-enabled
$service 2>/dev
/null ||
:)
362 if [[ $enabled != enabled
]]; then
363 m systemctl
enable $service
368 [[ $HOSTNAME == "$MAIL_HOST" ]]
370 e
() { printf "%s\n" "$*"; }
373 if systemctl is-active
$service >/dev
/null
; then
374 m systemctl restart
$service
380 if systemctl is-active
$service >/dev
/null
; then
381 m systemctl stop
$service
386 mxhost
=mx.iankelling.org
389 # old setup. left as comment for example
390 # mxhost=mail.messagingengine.com
392 # forward=ian@iankelling.org
394 smarthost
="$mxhost::$mxport"
395 uhome
=$
(eval echo ~
$u)
397 # Somehow on one machine, a file got written with 664 perms.
398 # just being defensive here.
401 source /a
/bin
/bash_unpublished
/source-state
402 if [[ ! $MAIL_HOST ]]; then
403 err
"\$MAIL_HOST not set"
409 kd|frodo|x2|x3|kw|sy|bo
)
415 # * Install universal packages
418 # installs epanicclean iptables-exim ip6tables-exim
419 /a
/bin
/ds
/install-my-scripts
421 if [[ $
(debian-codename-compat
) == bionic
]]; then
422 cat >/etc
/apt
/preferences.d
/spamassassin
<<'EOF'
423 Package: spamassassin sa-compile spamc
424 Pin: release n=focal,o=Ubuntu
429 # light version of exim does not have sasl auth support.
430 # note: for bitfolk hosts, unbound has important config with conflink.
431 pi-nostart exim4 exim4-daemon-heavy spamassassin unbound clamav-daemon wireguard
433 # note: pyzor debian readme says you need to run some initialization command
435 pi spf-tools-perl p0f postgrey pyzor razor jq moreutils certbot fail2ban
438 # not included due to using wireguard: openvpn
439 *) pi wget git
unzip iptables
;;
441 # bad packages that sometimes get automatically installed
442 pu openresolv resolvconf
447 if [[ $
(debian-codename
) == etiona
]]; then
448 # ip6tables stopped loading on boot. openvpn has reduced capability set,
449 # so running iptables as part of openvpn startup wont work. This should do it.
450 pi iptables-persistent
451 cat >/etc
/iptables
/rules.v6
<<'EOF'
458 m ip6tables
-S >/dev
/null
461 # our nostart pi fails to avoid enabling
464 # * Mail clean cronjob
466 u
/etc
/systemd
/system
/mailclean.timer
<<'EOF'
468 Description=Run mailclean daily
474 WantedBy=timers.target
477 u
/etc
/systemd
/system
/mailclean.service
<<EOF
479 Description=Delete and archive old mail files
480 After=multi-user.target
485 ExecStart=/usr/local/bin/sysd-mail-once mailclean /a/bin/distro-setup/mailclean
491 u
/etc
/default
/postgrey
<<'EOF'
492 POSTGREY_OPTS="--exim --unix=/var/run/postgrey/postgrey.sock --retry-window=4 --max-age=60"
497 m usermod
-a -G Debian-exim clamav
499 u
/etc
/systemd
/system
/clamav-daemon.service.d
/fix.conf
<<EOF
501 ExecStartPre=-/bin/mkdir -p /var/run/clamav
502 ExecStartPre=/bin/chown clamav /var/run/clamav
508 #vpnser=mailvpn.service
509 # note: this hangs if it cant resolv the endpoint. we
510 # want it to just retry in the background. i just use a static ip instead.
512 # Note: at least on t10, on reboot, the service fails to come up according to systemd, but
513 # in reality it is up and working, then it tries to restart infinitely, and fails
514 # because it detects that the interface exists.
518 # Aug 02 21:59:27 sy wg-quick[2092]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
519 # Aug 02 21:59:27 sy wg-quick[2248]: [#] iptables-restore -n
520 # 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?
521 # Aug 02 21:59:27 sy wg-quick[2259]: [#] iptables-restore -n
522 # 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?
523 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=4/NOPERMISSION
527 # Aug 03 14:12:47 sy wg-quick[711336]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
528 # Aug 03 14:12:47 sy wg-quick[711384]: [#] iptables-restore -n
529 # Aug 03 14:12:47 sy wg-quick[711336]: [#] ping -w10 -c1 10.8.0.1 ||:
530 # Aug 03 14:12:47 sy wg-quick[711389]: PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
531 # 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
532 # Aug 03 14:12:47 sy wg-quick[711389]: --- 10.8.0.1 ping statistics ---
533 # Aug 03 14:12:47 sy wg-quick[711389]: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
534 # Aug 03 14:12:47 sy wg-quick[711389]: rtt min/avg/max/mdev = 72.993/72.993/72.993/0.000 ms
535 # Aug 03 14:12:47 sy systemd[1]: Finished WireGuard via wg-quick(8) for wgmail.
536 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
537 # Aug 02 21:59:27 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
538 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Scheduled restart job, restart counter is at 1.
539 # Aug 02 21:95:47 sy systemd[1]: Stopped WireGuard via wg-quick(8) for wgmail.
540 # Aug 02 21:59:47 sy systemd[1]: Starting WireGuard via wg-quick(8) for wgmail...
541 # Aug 02 21:59:47 sy wg-quick[3424]: wg-quick: `wgmail' already exists
542 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=1/FAILURE
543 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
544 # Aug 02 21:59:47 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
547 # According to iptables -S and iptables -t nat -S,
548 # there are no modifications to iptables rules on a succsfull run,
551 vpnser
=wg-quick@wgmail.service
555 rsync
-aiSAX --chown=root
:root
--chmod=g-s
/p
/c
/filesystem
/etc
/wireguard
/ /etc
/wireguard
556 bindpaths
="/etc/127.0.0.1-resolv:/run/systemd/resolve /etc/basic-nsswitch:/etc/resolved-nsswitch:norbind"
559 bindpaths
="/etc/10.173.8.1-resolv:/etc/127.0.0.1-resolv"
562 d
=/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/wireguard
/
564 rsync
-aiSAX --chown=root
:root
--chmod=g-s
$d /etc
/wireguard
572 u
/etc
/systemd
/system
/wg-quick@wgmail.service.d
/override.conf
<<EOF
574 Requires=mailnn.service
575 JoinsNamespaceOf=mailnn.service
576 BindsTo=mailnn.service
577 StartLimitIntervalSec=0
581 # i dont think we need any of these, but it doesnt hurt to stay consistent
591 # https://selivan.github.io/2017/12/30/systemd-serice-always-restart.html
592 u
/etc
/systemd
/system
/mailvpn.service
<<EOF
594 Description=OpenVPN tunnel for mail
595 After=syslog.target network-online.target mailnn.service
596 Wants=network-online.target
597 Documentation=man:openvpn(8)
598 Documentation=https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
599 Documentation=https://community.openvpn.net/openvpn/wiki/HOWTO
600 # needed to continually restatr
601 JoinsNamespaceOf=mailnn.service
602 BindsTo=mailnn.service
603 StartLimitIntervalSec=0
607 RuntimeDirectory=openvpn-client
608 RuntimeDirectoryMode=0710
609 WorkingDirectory=/etc/openvpn/client
610 ExecStart=/usr/sbin/openvpn --suppress-timestamps --nobind --config /etc/openvpn/client/mail.conf
611 #CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_ADMIN CAP_NET_RAW CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_DAC_OVERRIDE
613 # DeviceAllow=/dev/null rw
614 # DeviceAllow=/dev/net/tun rw
616 # in the network namespace, we cant connect to systemd-resolved on 127.0.0.53,
618 # https://unix.stackexchange.com/questions/445782/how-to-allow-systemd-resolved-to-listen-to-an-interface-other-than-loopback
619 # there is a workaround there, but i dont think its really worth it,
620 # the mail server is fine with a static dns anyways.
621 # This thread is also interesting,
622 # https://github.com/slingamn/namespaced-openvpn/issues/7
623 # todo: the iptables rule at the bottom could be useful to prevent
624 # dns from leaking in my network namespaced vpn.
625 # I also like the idea of patching systemd-resolved so it
626 # will listen on other interfaces, but its not worth my time.
629 # time to sleep before restarting a service
633 WantedBy=multi-user.target
636 u
/etc
/systemd
/system
/mailnnroute.service
<<'EOF'
638 Description=Network routing for mailnn
639 After=syslog.target network-online.target mailnn.service
640 Wants=network-online.target
641 JoinsNamespaceOf=mailnn.service
642 BindsTo=mailnn.service
643 StartLimitIntervalSec=0
649 ExecStart=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns -n 10.173.8 start mail
650 ExecStop=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns stop mail
656 WantedBy=multi-user.target
660 u
/etc
/systemd
/system
/mailnn.service
<<'EOF'
662 Description=Network Namespace for mail vpn service that will live forever and cant fail
663 After=syslog.target network-online.target
664 Wants=network-online.target
669 ExecStart=/bin/sleep infinity
672 WantedBy=multi-user.target
675 u
/etc
/systemd
/system
/mailbindwatchdog.service
<<EOF
677 Description=Watchdog to restart services relying on systemd-resolved dir
678 After=syslog.target network-online.target
679 Wants=network-online.target
680 BindsTo=mailnn.service
684 ExecStart=/usr/local/bin/mailbindwatchdog $vpnser ${nn_progs[@]} unbound.service radicale.service
686 # time to sleep before restarting a service
690 WantedBy=multi-user.target
696 rm -fv /etc
/systemd
/system
/openvpn-client-mail@.service
698 # We use a local unbound because systemd-resolved wont accept our
699 # request, it will only listen to 127.0.0.53 in the main network
700 # namespace, and rejected feature requests to change that (although I
701 # could change the code and recompile), but anyways, that could answer
702 # with things specific to the lan that aren't applicable in this
703 # namespace, and since unbound is a recursive resolver, it means we just
704 # use our own ip against dnsbl rate limits.
706 # If we ever notice this change, chattr +i on it
707 # trust-ad is used in t10+, glibc 2.31
709 u
/etc
/127.0.0.1-resolv/stub-resolv.conf
<<'EOF'
711 options edns0 trust-ad
714 u
/etc
/127.0.0.53-resolv/stub-resolv.conf
<<'EOF'
715 nameserver 127.0.0.53
716 options edns0 trust-ad
720 u
/etc
/10.173.8.1-resolv/stub-resolv.conf
<<'EOF'
721 nameserver 10.173.8.1
722 options edns0 trust-ad
725 # this is just a bug fix for trisquel.
726 f
=/etc
/apparmor.d
/usr.sbin.unbound
727 line
="/usr/sbin/unbound flags=(attach_disconnected) {"
728 if ! grep -qFx "$line" $f; then
729 badline
="/usr/sbin/unbound {"
730 if ! grep -qFx "$badline" $f; then
731 err expected line
in $f not found
733 sed -i "s,^$badline$,$line," $f
734 if systemctl is-active apparmor
&>/dev
/null
; then
735 m systemctl reload apparmor
739 # note: anything added to nn_progs needs corresponding rm
740 # down below in the host switch
743 # Note dovecots lmtp doesnt need to be in the same nn to accept delivery.
744 # Its in the nn so remote clients can connect to it.
745 nn_progs
+=(spamassassin dovecot
)
750 # todo, should this be after vpn service
751 u
/etc
/systemd
/system
/unbound.service.d
/nn.conf
<<EOF
754 JoinsNamespaceOf=mailnn.service
755 BindsTo=mailnn.service
756 StartLimitIntervalSec=0
760 # note the nsswitch bind is actually not needed for bk, but
761 # its the same file so it does no harm.
768 # sooo, there are a few ways to get traffic from the mail network
769 # namespace to go over the wghole.
771 #1: unify the mail vpn and wghole
772 # into 1 network. this seems simple and logical, so I'm doing it.
773 # One general downside is tying things together, if I need to mess
774 # with one thing, it breaks the other. Oh well for now.
776 # 2. We can route 10.5.3.0/24 out of the mail nn and nat it into wghole.
778 # 3. We can setup the routing to happen on li, which seemed like I
779 # just needed to add 10.8.0.4/24 to AllowedIPs in at least the
780 # wghole clients, but I think that is kind of hacky and breaks ipv4
781 # routing within the mailvpn, it happened to work just because exim
782 # prefers ipv6 and that was also available in the mailvpn.
784 # 4. Put the hole interface into the mail network namespace. This
785 # doesn't work if the mail vpn is wg. For openvpn, it bypasses the
786 # vpn routing and establishes a direct connection. I only use the
787 # hole vpn for randomish things, it should be fine to join the mail
788 # nn for that. There should be some way to fix the routing issue
789 # by doing manual routing, but that doesn't seem like a good use of time.
791 # https://www.wireguard.com/netns/#
793 # for wireguard debugging
794 # echo module wireguard +p > /sys/kernel/debug/dynamic_debug/control
799 for unit
in ${nn_progs[@]}; do
800 u
/etc
/systemd
/system
/$unit.service.d
/nn.conf
<<EOF
803 # Wants appears better than requires because with requires,
804 # if the vpnser fails to start, this service won't get run at
805 # all, even if the vpnser starts on an automatic restart.
808 After=network.target mailnn.service $vpnser
809 JoinsNamespaceOf=mailnn.service
810 BindsTo=mailnn.service
811 StartLimitIntervalSec=0
815 # note the nsswitch bind is actually not needed for bk, but
816 # its the same file so it does no harm.
825 for unit
in exim4 spamassassin dovecot unbound
; do
826 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
835 # * wghole (another mail vpn)
838 u
/etc
/systemd
/system
/wg-quick@wghole.service.d
/override.conf
<<'EOF'
840 StartLimitIntervalSec=0
848 # * spamassassin config
849 u
/etc
/sysctl.d
/80-iank-mail.conf
<<'EOF'
851 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 120
857 u
/etc
/spamassassin
/mylocal.cf
<<'EOF'
858 # this is mylocal.cf because the normal local.cf has a bunch of upstream stuff i dont want to mess with
861 # /usr/share/doc/exim4-base/README.Debian.gz:
862 # SpamAssassin's default report should not be used in a add_header
863 # statement since it contains empty lines. (This triggers e.g. Amavis'
864 # warning "BAD HEADER SECTION, Improper folded header field made up
865 # entirely of whitespace".) This is a safe, terse alternative:
866 clear_report_template
867 report (_SCORE_ / _REQD_ requ) _TESTSSCORES(,)_ autolearn=_AUTOLEARN
868 uridnsbl_skip_domain iankelling.org
869 uridnsbl_skip_domain amnimal.ninja
870 uridnsbl_skip_domain expertpathologyreview.com
871 uridnsbl_skip_domain zroe.org
874 # 2020-10-19 remove old file. remove this when all hosts updated
875 rm -fv /etc
/systemd
/system
/spamddnsfix.
{timer
,service
}
877 u
/etc
/default
/spamassassin
<<'EOF'
878 # defaults plus debugging flags for an issue im having
879 OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
880 PIDFILE="/var/run/spamd.pid"
882 NICE="--nicelevel 15"
888 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
889 # note: these are duplicated in exim config
890 # veth0/1 # bk bk_ip6
891 internal_networks 10.173.8.1/32 10.173.8.2/32 85.119.83.50/32 2001:ba8:1f1:f0c9::2
892 trusted_networks 10.173.8.1/32 10.173.8.2/32 85.119.83.50/32 2001:ba8:1f1:f0c9::2
897 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
898 # note: these are duplicated in exim config
899 # veth0/1 # je je_ipv6
900 internal_networks 10.173.8.1/32 10.173.8.2/32 85.119.82.128/32 2001:ba8:1f1:f09d::2/128
901 trusted_networks 10.173.8.1/32 10.173.8.2/32 85.119.82.128/32 2001:ba8:1f1:f09d::2/128
905 u
/etc
/spamassassin
/my_thishost.cf
<<'EOF'
906 # note: these are duplicated in exim config
907 # veth0/1 # li li_ip6
908 internal_networks 10.173.8.1/32 10.173.8.2/32 72.14.176.105/32 2600:3c00::f03c:91ff:fe6d:baf8/128
909 trusted_networks 10.173.8.1/32 10.173.8.2/32 72.14.176.105/32 2600:3c00::f03c:91ff:fe6d:baf8/128
914 ##### end spamassassin config
920 ## needed only for openvpn mail vpn.
921 # if [[ -e /p/c/filesystem ]]; then
922 # # note, man openvpn implies we could just call mail-route on vpn startup/shutdown with
923 # # systemd, buuut it can remake the tun device unexpectedly, i got this in the log
924 # # after my internet was down for a bit:
925 # # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device.
926 # m /a/exe/vpn-mk-client-cert -b mailclient -n mail li.iankelling.org
929 # With openvpn, I didn't get around to persisting the openvpn
930 # cert/configs into /p/c/machine_specific/bk, so I had this case to
931 # manually get the cert. However, we aren't using openvpn anymore, so it
936 # if [[ ! -e /etc/openvpn/client/mail.conf ]]; then
937 # echo "$0: error: first, on a system with /p/c/filesystem, run mail-setup, or the vpn-mk-client-cert line above this err" 2>&2
943 m rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/mail-cert-cron
/usr
/local
/bin
945 u
/etc
/systemd
/system
/mailcert.service
<<'EOF'
947 Description=Mail cert rsync
948 After=multi-user.target
952 ExecStart=/usr/local/bin/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron
954 u
/etc
/systemd
/system
/mailcert.timer
<<'EOF'
956 Description=Run mail-cert once a day
962 WantedBy=timers.target
966 wghost
=${HOSTNAME}wg.b8.nz
967 if $bhost_t && [[ ! -e /etc
/exim
4/certs
/$wghost/privkey.pem
]]; then
968 certbot
-n --manual-public-ip-logging-ok --eff-email --agree-tos -m letsencrypt@iankelling.org \
969 certonly
--manual --preferred-challenges=dns \
970 --manual-auth-hook /a
/bin
/ds
/le-dns-challenge \
971 --manual-cleanup-hook /a
/bin
/ds
/le-dns-challenge-cleanup \
972 --deploy-hook /a
/bin
/ds
/le-exim-deploy
-d $wghost
977 # todo: test that these configs actually work, eg run
979 # and see someone is banned.
981 sed 's/^ *before *= *iptables-common.conf/before = iptables-common-exim.conf/' \
982 /etc
/fail2ban
/action.d
/iptables-multiport.conf| u
/etc
/fail2ban
/action.d
/iptables-exim.conf
983 u
/etc
/fail2ban
/action.d
/iptables-common-exim.conf
<<'EOF'
984 # iank: same as iptables-common, except iptables is iptables-exim, ip6tables is ip6tables-exim
986 # Fail2Ban configuration file
988 # Author: Daniel Black
990 # This is a included configuration file and includes the definitions for the iptables
991 # used in all iptables based actions by default.
993 # The user can override the defaults in iptables-common.local
995 # Modified: Alexander Koeppe <format_c@online.de>, Serg G. Brester <serg.brester@sebres.de>
996 # made config file IPv6 capable (see new section Init?family=inet6)
1000 after = iptables-blocktype.local
1001 iptables-common.local
1002 # iptables-blocktype.local is obsolete
1006 # Option: actionflush
1007 # Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
1010 actionflush = <iptables> -F f2b-<name>
1016 # Notes specifies the iptables chain to which the Fail2Ban rules should be
1018 # Values: STRING Default: INPUT
1021 # Default name of the chain
1026 # Notes.: specifies port to monitor
1027 # Values: [ NUM | STRING ] Default:
1032 # Notes.: internally used by config reader for interpolations.
1033 # Values: [ tcp | udp | icmp | all ] Default: tcp
1038 # Note: This is what the action does with rules. This can be any jump target
1039 # as per the iptables man page (section 8). Common values are DROP
1040 # REJECT, REJECT --reject-with icmp-port-unreachable
1042 blocktype = REJECT --reject-with icmp-port-unreachable
1044 # Option: returntype
1045 # Note: This is the default rule on "actionstart". This should be RETURN
1046 # in all (blocking) actions, except REJECT in allowing actions.
1050 # Option: lockingopt
1051 # Notes.: Option was introduced to iptables to prevent multiple instances from
1052 # running concurrently and causing irratic behavior. -w was introduced
1053 # in iptables 1.4.20, so might be absent on older systems
1054 # See https://github.com/fail2ban/fail2ban/issues/1122
1059 # Notes.: Actual command to be executed, including common to all calls options
1061 iptables = /usr/local/bin/iptables-exim <lockingopt>
1066 # Option: blocktype (ipv6)
1067 # Note: This is what the action does with rules. This can be any jump target
1068 # as per the iptables man page (section 8). Common values are DROP
1069 # REJECT, REJECT --reject-with icmp6-port-unreachable
1071 blocktype = REJECT --reject-with icmp6-port-unreachable
1073 # Option: iptables (ipv6)
1074 # Notes.: Actual command to be executed, including common to all calls options
1076 iptables = /usr/local/bin/ip6tables-exim <lockingopt>
1079 u
/etc
/fail2ban
/jail.d
/exim.
local <<'EOF'
1084 banaction = iptables-exim
1086 # 209.51.188.13 = mail.fsf.org
1087 # 2001:470:142::13 = mail.fsf.org
1088 # 209.51.188.92 = eggs.gnu.org
1089 # 2001:470:142:3::10 = eggs.gnu.org
1090 # 72.14.176.105 2600:3c00:e000:280::2 = mail.iankelling.org
1091 # 10.173.8.1 = non-nn net
1092 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
1095 m systemctl restart fail2ban
1098 # * common exim4 config
1101 ## old, not using forward files anymore
1102 rm -fv $uhome/.forward
/root
/.forward
1105 # Make all system users be aliases. preventative
1106 # prevents things like cron mail for user without alias
1107 awk 'BEGIN { FS = ":" } ; $6 !~ /^\/home/ || $7 ~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1108 if [[ ! $user ]]; then
1111 if ! grep -q "^$user:" /etc
/aliases
; then
1112 echo "$user: root" |m
tee -a /etc
/aliases
1117 awk 'BEGIN { FS = ":" } ; $6 ~ /^\/home/ && $7 !~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1120 sed -i "/^user:/d" /etc
/aliases
1123 if ! grep -q "^$user:" /etc
/aliases
; then
1124 echo "$user: root" |m
tee -a /etc
/aliases
1131 .
/a
/bin
/bash_unpublished
/priv-mail-setup
1134 m gpasswd
-a iank adm
#needed for reading logs
1136 ### make local bounces go to normal maildir
1137 # local mail that bounces goes to /Maildir or /root/Maildir
1138 dirs=(/m
/md
/bounces
/{cur
,tmp
,new
})
1139 m mkdir
-p ${dirs[@]}
1140 m chown iank
:iank
/m
/m
/md
1141 m
ln -sfT /m
/md
/m
/iank
1142 m
chmod 771 /m
/m
/md
1143 m chown
-R $u:Debian-exim
/m
/md
/bounces
1144 m
chmod 775 ${dirs[@]}
1145 m usermod
-a -G Debian-exim
$u
1146 for d
in /Maildir
/root
/Maildir
; do
1147 if [[ ! -L $d ]]; then
1150 m
ln -sf -T /m
/md
/bounces
$d
1153 # dkim, client passwd file
1154 files
=(/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/exim
4/*)
1155 f
=/p
/c
/filesystem
/etc
/exim
4/passwd.client
1156 if [[ -e $f ]]; then
1159 if (( ${#files[@]} )); then
1160 m rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 \
1161 ${files[@]} /etc
/exim4
1164 # By default, only 10 days of logs are kept. increase that.
1165 # And dont compress, I look back at logs too often and
1166 # dont need the annoyance of decompressing them all the time.
1167 m
sed -ri '/^\s*compress\s*$/d;s/^(\s*rotate\s).*/\11000/' /etc
/logrotate.d
/exim4-base
1168 files
=(/var
/log
/exim
4/*.gz
)
1169 if (( ${#files[@]} )); then
1173 ## disabled. not using .forward files, but this is still interesting
1175 # ## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost
1176 # # i only need .forwards, so just doing that one.
1177 # cd /etc/exim4/conf.d/router
1178 # b=userforward_higher_priority
1179 # # replace the router name so it is unique
1180 # sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b
1181 rm -fv /etc
/exim
4/conf.d
/router
/175_userforward_higher_priority
1183 # todo, consider 'separate' in etc/exim4.conf, could it help on busy systems?
1185 # alerts is basically the postmaster address
1186 m
sed -i --follow-symlinks -f - /etc
/aliases
<<EOF
1187 \$a root: alerts@iankelling.org
1191 cat >/etc
/exim
4/conf.d
/rewrite
/34_iank_rewriting
<<'EOF'
1192 ncsoft@zroe.org graceq2323@gmail.com hE
1196 rm -fv /etc
/exim
4/conf.d
/retry
/37_retry
1198 cat >/etc
/exim
4/conf.d
/retry
/17_retry
<<'EOF'
1199 # Retry fast for my own domains
1200 iankelling.org * F,1d,1m;F,14d,1h
1201 amnimal.ninja * F,1d,1m;F,14d,1h
1202 expertpathologyreview.com * F,1d,1m;F,14d,1h
1203 je.b8.nz * F,1d,1m;F,14d,1h
1204 zroe.org * F,1d,1m;F,14d,1h
1205 eximbackup.b8.nz * F,1d,1m;F,14d,1h
1207 # The spec says the target domain will be used for temporary host errors,
1208 # but i've found that isn't correct, the hostname is required
1209 # at least sometimes.
1210 nn.b8.nz * F,1d,1m;F,14d,1h
1211 defaultnn.b8.nz * F,1d,1m;F,14d,1h
1212 mx.iankelling.org * F,1d,1m;F,14d,1h
1213 bk.b8.nz * F,1d,1m;F,14d,1h
1214 eggs.gnu.org * F,1d,1m;F,14d,1h
1215 fencepost.gnu.org * F,1d,1m;F,14d,1h
1217 # afaik our retry doesnt need this, but just using everything
1218 mx.amnimal.ninja * F,1d,1m;F,14d,1h
1219 mx.expertpathologyreview.com * F,1d,1m;F,14d,1h
1222 mail.fsf.org * F,1d,15m;F,14d,1h
1226 rm -vf /etc
/exim
4/conf.d
/main
/000_localmacros
# old filename
1228 # separate file so without quoted EOF for convenience
1229 cat >/etc
/exim
4/conf.d
/main
/000_local2
<<EOF
1230 # normally empty, I set this so I can set the envelope address
1231 # when doing mail redelivery to invoke filters. Also allows
1232 # me exiqgrep and stuff.
1233 MAIN_TRUSTED_GROUPS = $u
1238 for f
in *-private.pem
; do
1239 echo ${f%-private.pem}
1241 } | u
/etc
/exim
4/conf.d
/my-dkim-domains
1243 rm -f /etc
/exim
4/conf.d
/transport
/11_iank
1245 cat >/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1246 MAIN_TLS_ENABLE = true
1248 # require tls connections for all smarthosts
1249 REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS = ! nn.b8.nz
1250 REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS = nn.b8.nz
1252 # debian exim config added this in 2016 or so?
1253 # it's part of the smtp spec, to limit lines to 998 chars
1254 # but a fair amount of legit mail does not adhere to it. I don't think
1255 # this should be default, like it says in
1256 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=828801
1257 # todo: the bug for introducing this was about headers, but
1258 # the fix maybe is for all lines? one says gmail rejects, the
1259 # other says gmail does not reject. figure out and open a new bug.
1260 IGNORE_SMTP_LINE_LENGTH_LIMIT = true
1262 # more verbose logs. used to use +all, but made it less for more efficiency.
1263 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
1265 # Based on spec, seems like a good idea to be nice.
1266 smtp_return_error_details = true
1268 # default is 10. when exim has been down for a bit, fsf mailserver
1269 # will do a big send in one connection, then exim decides to put
1270 # the messages in the queue instead of delivering them, to avoid
1271 # spawning too many delivery processes. This is the same as the
1272 # fsfs value. And the corresponding one for how many messages
1273 # to send out in 1 connection remote_max_parallel = 256
1274 smtp_accept_queue_per_connection = 500
1277 DKIM_CANON = relaxed
1281 # The file is based on the outgoing domain-name in the from-header.
1282 # sign if key exists
1283 DKIM_PRIVATE_KEY = ${if exists{/etc/exim4/${dkim_domain}-private.pem} {/etc/exim4/${dkim_domain}-private.pem}}
1285 # most of the ones that gmail seems to use.
1286 # Exim has horrible default of signing unincluded
1287 # list- headers since they got mentioned in an
1288 # rfc, but this messes up mailing lists, like gnu/debian which want to
1289 # keep your dkim signature intact but add list- headers.
1290 DKIM_SIGN_HEADERS = mime-version:in-reply-to:references:from:date:subject:to
1292 domainlist local_hostnames = ! je.b8.nz : ! bk.b8.nz : *.b8.nz : b8.nz
1294 # note: most of these are duplicated in spamassassin config
1295 hostlist iank_trusted = <; \
1299 72.14.176.105 ; 2600:3c00::f03c:91ff:fe6d:baf8 ; \
1300 # li_vpn_net li_vpn_net_ip6s
1301 10.8.0.0/24; 2600:3c00:e000:280::/64 ; 2600:3c00:e002:3800::/56 ; \
1303 85.119.83.50 ; 2001:ba8:1f1:f0c9::2 ; \
1305 85.119.82.128 ; 2001:ba8:1f1:f09d::2 ; \
1306 # fsf_mit_net fsf_mit_net_ip6 fsf_net fsf_net_ip6 fsf_office_net
1307 18.4.89.0/24 ; 2603:3005:71a:2e00::/64 ; 209.51.188.0/24 ; 2001:470:142::/48 ; 74.94.156.208/28
1310 # this is the default delay_warning_condition, plus matching on local_domains.
1311 # If I have some problem with my local system that causes delayed delivery,
1312 # I dont want to send warnings out to non-local domains.
1313 delay_warning_condition = ${if or {\
1314 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }\
1315 { match{$h_precedence:}{(?i)bulk|list|junk} }\
1316 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }\
1317 { match_domain{$domain}{+local_domains} }\
1321 # enable 587 in addition to the default 25, so that
1322 # i can send mail where port 25 is firewalled by isp
1323 daemon_smtp_ports = 25 : 587 : 10025
1324 # default of 25, can get stuck when catching up on mail
1325 smtp_accept_max = 400
1326 smtp_accept_reserve = 100
1327 smtp_reserve_hosts = +iank_trusted
1329 # Rules that make receiving more liberal should be on backup hosts
1330 # so that we dont reject mail accepted by MAIL_HOST
1331 LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE = /etc/exim4/conf.d/local_deny_exceptions_acl
1334 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show exim4)" ge
4.94; then
1335 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1336 # In t11, we cant do the old anymore because this is tainted data used in a file lookup.
1337 # /usr/share/doc/exim4/NEWS.Debian.gz suggests to use lookups to untaint data.
1338 DKIM_DOMAIN = ${lookup {${domain:$rh_from:}}lsearch,ret=key{/etc/exim4/conf.d/my-dkim-domains}}
1341 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1343 # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
1344 # and its best for this to align https://tools.ietf.org/html/rfc7489#page-8
1345 # There could be some circumstance when the
1346 # from: isnt our domain, but the envelope sender is
1347 # and so still want to sign, but I cant think of any case.
1348 DKIM_DOMAIN = ${lc:${domain:$rh_from:}}
1352 rm -fv /etc
/exim
4/rcpt_local_acl
# old path
1354 u
/etc
/exim
4/conf.d
/local_deny_exceptions_acl
<<'EOF'
1355 # This acl already exists in rcpt, this just makes it more widespread.
1356 # See the comment there for its rationale. The reason it needs to be
1357 # more widespread is that I've turned on sender verification, but cron
1358 # emails can fail sender verification since I may be in a network that
1359 # doesn't have my local dns.
1363 # i setup a local programs smtp to mail.iankelling.org, this
1364 # skips sender verification for it.
1369 rm -fv /etc
/exim
4/data_local_acl
# old path
1371 u
/etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
1372 # Except for the "condition =", this was
1373 # a comment in the check_data acl. The comment about this not
1374 # being suitable has been changed in newer exim versions. The only thing
1375 # related I found was to
1376 # add the condition =, cuz spamassassin has problems with big
1377 # messages and spammers don't bother with big messages,
1378 # but I've increased the size from 10k
1379 # suggested in official docs, and 100k in the wiki example because
1380 # those docs are rather old and I see a 110k spam message
1381 # pretty quickly looking through my spam folder.
1384 !hosts = +iank_trusted
1385 remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : X-Spam_report
1388 !hosts = +iank_trusted
1389 # Smarthosts connect with residential ips and thus get flagged as spam if we do a spam check.
1390 !authenticated = plain_server:login_server
1391 condition = ${if < {$message_size}{5000K}}
1392 spam = Debian-exim:true
1393 add_header = X-Spam_score_int: $spam_score_int
1394 add_header = X-Spam_score: $spam_score
1395 add_header = X-Spam_bar: $spam_bar
1396 add_header = X-Spam_report: $spam_report
1397 add_header = X-Spam_action: $spam_action
1401 # spf = pass:fail:softfail:none:neutral:permerror:temperror
1402 # dmarc_status = reject:quarantine
1403 # add_header = Reply-to: dmarctest@iankelling.org
1409 rm -fv /etc
/exim
4/conf.d
/router
/8{8,9}0_backup_copy \
1410 /etc
/exim
4/conf.d
/router
/865_backup_redir \
1411 /etc
/exim
4/conf.d
/router
/870_backup_local
1413 # It is important for this to exist everywhere except in MAIL_HOST
1414 # non-nn config. Previously, just had it in the nn-config on MAIL_HOST,
1415 # but that is a problem if we change mail host and still have something
1416 # in the queue which was destined for this router, but hosts were
1417 # unreachable, the routers will be reevaluated on the next retry.
1418 u
/etc
/exim
4/conf.d
/router
/170_backup_copy
<<EOF
1419 ### router/900_exim4-config_local_user
1420 #################################
1423 driver = manualroute
1424 domains = eximbackup.b8.nz
1425 transport = backup_remote
1426 ignore_target_hosts = ${HOSTNAME}wg.b8.nz
1427 # note changes here also require change in passwd.client
1428 route_list = * eximbackup.b8.nz
1429 same_domain_copy_routing = yes
1430 errors_to = alerts@iankelling.org
1435 # exim4-config transports are the same as default except for
1436 # message_linelength_limit = 2097152
1438 # TODO: copy the defaults into their own file, and setup a cronjob so
1439 # that if file.dpkg-dist shows up, and it is different, we get an alert.
1441 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp_smarthost
<<'EOF'
1442 ### transport/30_exim4-config_remote_smtp_smarthost
1443 #################################
1445 # This transport is used for delivering messages over SMTP connections
1446 # to a smarthost. The local host tries to authenticate.
1447 # This transport is used for smarthost and satellite configurations.
1449 remote_smtp_smarthost:
1450 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1452 message_linelength_limit = 2097152
1454 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1456 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1460 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1461 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1463 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1464 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1466 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1467 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1469 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1470 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1472 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1473 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1475 .ifdef REMOTE_SMTP_RETURN_PATH
1476 return_path = REMOTE_SMTP_RETURN_PATH
1478 .ifdef REMOTE_SMTP_HELO_DATA
1479 helo_data=REMOTE_SMTP_HELO_DATA
1481 .ifdef TLS_DH_MIN_BITS
1482 tls_dh_min_bits = TLS_DH_MIN_BITS
1484 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1485 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1487 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1488 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1490 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1491 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1493 .ifdef REMOTE_SMTP_SMARTHOST_PROTOCOL
1494 protocol = REMOTE_SMTP_SMARTHOST_PROTOCOL
1498 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp
<<'EOF'
1499 ### transport/30_exim4-config_remote_smtp
1500 #################################
1501 # This transport is used for delivering messages over SMTP connections.
1504 debug_print = "T: remote_smtp for $local_part@$domain"
1506 message_linelength_limit = 2097152
1507 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1508 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1510 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1511 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1513 .ifdef REMOTE_SMTP_RETURN_PATH
1514 return_path = REMOTE_SMTP_RETURN_PATH
1516 .ifdef REMOTE_SMTP_HELO_DATA
1517 helo_data=REMOTE_SMTP_HELO_DATA
1519 .ifdef REMOTE_SMTP_INTERFACE
1520 interface = REMOTE_SMTP_INTERFACE
1523 dkim_domain = DKIM_DOMAIN
1525 .ifdef DKIM_IDENTITY
1526 dkim_identity = DKIM_IDENTITY
1528 .ifdef DKIM_SELECTOR
1529 dkim_selector = DKIM_SELECTOR
1531 .ifdef DKIM_PRIVATE_KEY
1532 dkim_private_key = DKIM_PRIVATE_KEY
1535 dkim_canon = DKIM_CANON
1538 dkim_strict = DKIM_STRICT
1540 .ifdef DKIM_SIGN_HEADERS
1541 dkim_sign_headers = DKIM_SIGN_HEADERS
1543 .ifdef DKIM_TIMESTAMPS
1544 dkim_timestamps = DKIM_TIMESTAMPS
1546 .ifdef TLS_DH_MIN_BITS
1547 tls_dh_min_bits = TLS_DH_MIN_BITS
1549 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1550 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1552 .ifdef REMOTE_SMTP_PRIVATEKEY
1553 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1555 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1556 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1558 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1559 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1564 u
/etc
/exim
4/conf.d
/transport
/30_backup_remote
<<'EOF'
1568 message_linelength_limit = 2097152
1569 hosts_require_auth = *
1572 # manual return path because we want it to be the envelope sender
1573 # we got not the one we are using in this smtp transport
1574 headers_add = "Return-path: $sender_address"
1575 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1576 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1578 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1579 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1581 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1582 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1584 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1585 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1587 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1588 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1590 .ifdef REMOTE_SMTP_HELO_DATA
1591 helo_data=REMOTE_SMTP_HELO_DATA
1593 .ifdef TLS_DH_MIN_BITS
1594 tls_dh_min_bits = TLS_DH_MIN_BITS
1596 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1597 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1599 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1600 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1602 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1603 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1607 u
/etc
/exim
4/conf.d
/router
/900_exim4-config_local_user
<<'EOF'
1608 ### router/900_exim4-config_local_user
1609 #################################
1611 # This router matches local user mailboxes. If the router fails, the error
1612 # message is "Unknown user".
1614 debug_print = "R: local_user for $local_part@$domain"
1616 domains = +local_domains
1617 # ian: default file except where mentioned.
1618 # ian: commented this. I get all local parts. for bk, an rcpt
1619 # check handles checking with dovecot, and the only router
1620 # after this is root.
1621 # local_parts = ! root
1622 transport = LOCAL_DELIVERY
1623 cannot_route_message = Unknown user
1624 # ian: added for + addressing.
1625 local_part_suffix = +*
1626 local_part_suffix_optional
1628 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_dovecot_lmtp
<<'EOF'
1631 socket = /var/run/dovecot/lmtp
1632 #maximum number of deliveries per batch, default 1
1637 u
/etc
/exim
4/conf.d
/transport
/30_remote_smtp_vpn
<<'EOF'
1638 # same as debians 30_exim4-config_remote_smtp, but
1639 # with interface added at the end.
1642 debug_print = "T: remote_smtp_vpn for $local_part@$domain"
1644 message_linelength_limit = 2097152
1645 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1646 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1648 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1649 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1651 .ifdef REMOTE_SMTP_RETURN_PATH
1652 return_path = REMOTE_SMTP_RETURN_PATH
1654 .ifdef REMOTE_SMTP_HELO_DATA
1655 helo_data=REMOTE_SMTP_HELO_DATA
1658 dkim_domain = DKIM_DOMAIN
1660 .ifdef DKIM_SELECTOR
1661 dkim_selector = DKIM_SELECTOR
1663 .ifdef DKIM_PRIVATE_KEY
1664 dkim_private_key = DKIM_PRIVATE_KEY
1667 dkim_canon = DKIM_CANON
1670 dkim_strict = DKIM_STRICT
1672 .ifdef DKIM_SIGN_HEADERS
1673 dkim_sign_headers = DKIM_SIGN_HEADERS
1675 .ifdef TLS_DH_MIN_BITS
1676 tls_dh_min_bits = TLS_DH_MIN_BITS
1678 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1679 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1681 .ifdef REMOTE_SMTP_PRIVATEKEY
1682 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1684 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1685 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1687 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1688 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1690 interface = <; 10.8.0.4 ; 2600:3c00:e002:3800::4
1693 u
/etc
/exim
4/conf.d
/transport
/30_smarthost_dkim
<<'EOF'
1694 # ian: this is remote_smtp_smarthost plus the dkim parts from remote_smtp
1697 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1699 message_linelength_limit = 2097152
1701 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1703 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1707 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1708 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1710 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1711 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1713 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1714 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1716 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1717 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1719 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1720 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1722 .ifdef REMOTE_SMTP_RETURN_PATH
1723 return_path = REMOTE_SMTP_RETURN_PATH
1725 .ifdef REMOTE_SMTP_HELO_DATA
1726 helo_data=REMOTE_SMTP_HELO_DATA
1728 .ifdef TLS_DH_MIN_BITS
1729 tls_dh_min_bits = TLS_DH_MIN_BITS
1731 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1732 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1734 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1735 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1737 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1738 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1741 dkim_domain = DKIM_DOMAIN
1743 .ifdef DKIM_SELECTOR
1744 dkim_selector = DKIM_SELECTOR
1746 .ifdef DKIM_PRIVATE_KEY
1747 dkim_private_key = DKIM_PRIVATE_KEY
1750 dkim_canon = DKIM_CANON
1753 dkim_strict = DKIM_STRICT
1755 .ifdef DKIM_SIGN_HEADERS
1756 dkim_sign_headers = DKIM_SIGN_HEADERS
1761 cat >/etc
/exim
4/update-exim4.conf.conf
<<'EOF'
1762 # default stuff, i havent checked if its needed
1763 dc_minimaldns='false'
1765 dc_use_split_config='true'
1766 dc_mailname_in_oh='true'
1772 if ! mountpoint
/o
; then
1773 echo "error /o is not a mountpoint" >&2
1777 # davx/davdroid setup instructions at the bottom
1780 # http://radicale.org/user_documentation/
1781 # https://davdroid.bitfire.at/configuration/
1783 # note on debugging: if radicale can't bind to the address,
1784 # in the log it just says "Starting Radicale". If you run
1785 # it in the foreground, it will give more info. Background
1786 # plus debug does not help.
1787 # sudo -u radicale radicale -D
1789 # created password file with:
1790 # htpasswd -c /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1791 # chmod 640 /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1792 # # setup chgrp www-data in ./conflink
1795 m usermod
-a -G radicale iank
1797 u
/etc
/systemd
/system
/radicale.service.d
/override.conf
<<EOF
1800 After=network.target network-online.target mailnn.service $vpnser
1803 JoinsNamespaceOf=mailnn.service
1804 StartLimitIntervalSec=0
1808 BindPaths=$bindpaths
1810 # time to sleep before restarting a service
1819 # use persistent uid/gid
1820 IFS
=:; read -r _ _ uid _
< <(getent passwd radicale
); unset IFS
1821 IFS
=:; read -r _ _ gid _
< <(getent group radicale
); unset IFS
1822 if [[ $uid != 609 ]]; then
1823 m systemctl stop radicale ||
:
1824 m usermod
-u 609 radicale
1825 m groupmod
-g 609 radicale
1826 m usermod
-g 609 radicale
1828 m
find /o
/radicale
-xdev -exec chown
-h 609 {} +
1829 m
find /o
/radicale
-xdev -exec chgrp
-h 609 {} +
1832 # I moved /var/lib/radicale after it's initialization.
1833 # I did a sudo -u radicale git init in the collections subfolder
1834 # after it gets created, per the git docs.
1835 m
/a
/exe
/lnf
-T /o
/radicale
/var
/lib
/radicale
1837 # from https://www.williamjbowman.com/blog/2015/07/24/setting-up-webdav-caldav-and-carddav-servers/
1839 # more config is for li in distro-end
1841 # coment in this file says this is needed for it to run on startup
1842 sed -ri 's/^\s*#+\s*(ENABLE_RADICALE\s*=\s*yes\s*)/\1/' /etc
/default
/radicale
1844 # comments say default is 0.0.0.0:5232
1845 m setini hosts
10.8.0.4:5232 server
1846 # https://radicale.org/2.1.html
1847 m setini
type http_x_remote_user auth
1850 # disable power management feature, set to 240 min sync interval,
1851 # so it shouldn't be bad.
1853 # davx^5 from f-droid
1854 # login with url and user name
1855 # url https://cal.iankelling.org/ian
1857 # pass, see password manager for radicale
1859 # add account dialog:
1861 # set account name as ian@iankelling.org, per help text below the
1864 # switch to groups are per-contact categories,
1865 # per https://davdroid.bitfire.at/configuration/radicale/
1868 # After setting up account, I added one address book, named
1869 # ianaddr. calender was already created, named ian. checked boxes under
1872 # To restore from old phone to new phone, I wiped all data out, then copied over the newly created files. I think
1874 # ignorable background info:
1876 # opentasks uses the calendar file.
1878 # The address book I created got a uuid as a name for the file. Note
1879 # the .props file says if it's a calendar or addressbook.
1881 # When debugging, tailed /var/log/radicale/radicale.log and apache log,
1882 # both show the requests happening. Without creating the address book,
1883 # after creating a contact, a sync would delete it.
1885 # Address books correspond to .props files in the radicale dir.
1887 # Some background is here,
1888 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1889 # which shows separate vcard option is from rfc 6350, the other is 2426,
1890 # radicale page says it implements the former not the latter,
1891 # which conflicts with the documentation of which to select, but whatever.
1892 # http://radicale.org/technical_choices/
1893 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1895 # Note, url above says only cayanogenmod 13+ and omnirom can manage groups.
1897 # Note, radicale had built-in git support to track changes, but they
1898 # removed it in 2.0.
1904 # ** $MAIL_HOST|bk|je)
1907 # based on a little google and package search, just the dovecot
1908 # packages we need instead of dovecot-common.
1910 # dovecot-lmtpd is for exim to deliver to dovecot instead of maildir
1911 # directly. The reason to do this is to use dovecot\'s sieve, which
1912 # can generally do more than exims filters (a few things less) and
1913 # sieve has the benefit of being supported in postfix and
1914 # proprietary/weird environments, so there is more examples on the
1916 pi-nostart dovecot-core dovecot-imapd dovecot-sieve dovecot-lmtpd dovecot-sqlite sqlite3
1918 for f
in /p
/c
{/machine_specific
/$HOSTNAME,}/filesystem
/etc
/dovecot
/users
; do
1919 if [[ -e $f ]]; then
1920 m rsync
-ahhi --chown=root
:dovecot
--chmod=0640 $f /etc
/dovecot
/
1924 for f
in /p
/c
/subdir_files
/sieve
/*sieve
/a
/bin
/ds
/subdir_files
/sieve
/*sieve
; do
1925 m sudo
-u $u /a
/exe
/lnf
-v -T $f $uhome/sieve
/${f##*/}
1928 # https://wiki.dovecot.org/SSL/DovecotConfiguration
1929 u
/etc
/dovecot
/dhparam
<<'EOF'
1930 -----BEGIN DH PARAMETERS-----
1931 MIIBCAKCAQEAoleil6SBxGqQKk7j0y2vV3Oklv6XupZKn7PkPv485QuFeFagifeS
1932 A+Jz6Wquqk5zhGyCu63Hp4wzGs4TyQqoLjkaWL6Ra/Bw3g3ofPEzMGEsV1Qdqde4
1933 jorwiwtr2i9E6TXQp0noT/7VFeHulIkayTeW8JulINdMHs+oLylv16McGCIrxbkM
1934 8D1PuO0TP/CNDs2QbRvJ1RjY3CeGpxMhrSHVgBCUMwnA2cvz3bYjI7UMYMMDPNrE
1935 PLrwsYzXGGCdJsO2vsmmqqgLsZiapYJlUNjfiyWLt7E2H6WzkNB3VIhIPfLqFDPK
1936 xioE3sYKdjOt+p6mlg3l8+OLtODEFPHDqwIBAg==
1937 -----END DH PARAMETERS-----
1941 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
1943 ssl_cert = </etc/exim4/fullchain.pem
1944 ssl_key = </etc/exim4/privkey.pem
1947 # We have a lets encrypt hooks that puts things here.
1948 # This is just for bk, which uses the vpn cert in exim
1949 # for sending mail, but the local hostname cert for
1952 ssl_cert = </etc/exim4/exim.crt
1953 ssl_key = </etc/exim4/exim.key
1958 # https://ssl-config.mozilla.org
1960 # this is the same as the certbot list, i check changes in /a/bin/ds/filesystem/usr/local/bin/check-lets-encrypt-ssl-settings
1961 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
1962 ssl_protocols = TLSv1.2
1963 ssl_prefer_server_ciphers = no
1966 #per https://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
1967 # default is just $mail_plugins
1968 mail_plugins = $mail_plugins sieve
1971 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show dovecot-core)" ge
1:2.3; then
1973 ssl_dh = </etc/dovecot/dhparam
1976 } >/etc
/dovecot
/local.conf
1982 # If we changed 90-sieve.conf and removed the active part of the
1983 # sieve option, we wouldn\'t need this, but I\'d rather not modify a
1984 # default config if not needed. This won\'t work as a symlink in /a/c
1986 m sudo
-u $u /a
/exe
/lnf
-T sieve
/main.sieve
$uhome/.dovecot.sieve
1988 if [[ ! -e $uhome/sieve
/personal.sieve
]]; then
1989 m
touch $uhome/sieve
/personal
{,end
}{,test}.sieve
1992 rm -fv /etc
/dovecot
/conf.d
/20-lmtp.conf
# file from prev version
1993 cat >>/etc
/dovecot
/local.conf
<<EOF
1994 # simple password file based login
1995 !include conf.d/auth-passwdfile.conf.ext
1997 # ian: %u is used for alerts user vs iank
1998 mail_location = maildir:/m/%u:LAYOUT=fs:INBOX=/m/%u/INBOX
2003 # For a normal setup with exim, we need something like this, which
2004 # removes the domain part
2005 # auth_username_format = %Ln
2007 # or else # Exim says something like
2008 # "LMTP error after RCPT ... 550 ... User doesn't exist someuser@somedomain"
2009 # Dovecot verbose log says something like
2010 # "auth-worker(9048): passwd(someuser@somedomain): unknown user"
2011 # reference: http://wiki.dovecot.org/LMTP/Exim
2013 # However, I use this to direct all mail to the same inbox.
2014 # A normal way to do this, which I did at first is to have
2015 # a router in exim almost at the end, eg 950,
2017 # debug_print = "R: catchall for \$local_part@\$domain"
2019 # domains = +local_domains
2022 # http://blog.alteholz.eu/2015/04/exim4-and-catchall-email-address/
2023 # with superflous options removed.
2024 # However, this causes the envelope to be rewritten,
2025 # which makes filtering into mailboxes a little less robust or more complicated,
2026 # so I've done it this way instead. it also requires
2027 # modifying the local router in exim.
2028 auth_username_format = $u
2034 chown
-R mail.
mail /m
/md
2036 f
=/etc
/dovecot
/conf.d
/10-auth.conf
2037 if [[ -e $f ]]; then
2038 mv $f $f-iank-disabled
2041 cat >>/etc
/dovecot
/local.conf
<<EOF
2042 !include /etc/dovecot/local.conf.ext
2044 # for debugging info, uncomment these.
2045 # logs go to syslog and to /var/log/mail.log
2051 # This downcases the localpart. default is case sensitive.
2052 # case sensitive local part will miss out on valid email when some person or system
2053 # mistakenly capitalizes things.
2054 auth_username_format = %Lu
2057 # make 147 only listen on localhost, plan to use for nextcloud.
2058 # copied from mailinabox
2059 service imap-login {
2060 inet_listener imap {
2064 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_dovecot_authenticator.html
2066 unix_listener auth-client {
2074 sieve_before = /etc/dovecot/sieve-spam.sieve
2076 sieve = /m/sieve/%d/%n.sieve
2077 sieve_dir = /m/sieve/%d/%n
2081 # all taken from mailinabox.
2082 mail_location = maildir:/m/md/%d/%n
2084 mail_privileged_group = mail
2085 # By default Dovecot allows users to log in only with UID numbers 500 and above. mail is 8
2088 # todo: test these changes in the universal config
2089 # mailboxes taken from mailinabox but removed
2090 # settings duplicate to defaults
2109 special_use = \Archive
2113 auth_mechanisms = plain login
2116 u
/etc
/dovecot
/sieve-spam.sieve
<<'EOF'
2117 require ["regex", "fileinto", "imap4flags"];
2119 if allof (header :regex "X-Spam-Status" "^Yes") {
2125 u
/etc
/dovecot
/local.conf.ext
<<'EOF'
2128 args = /etc/dovecot/dovecot-sql.conf.ext
2132 args = /etc/dovecot/dovecot-sql.conf.ext
2137 u
/etc
/dovecot
/dovecot-sql.conf.ext
<<'EOF'
2140 # for je and bk, populated the testignore users for the relevant domains
2141 connect = /m/rc/users.sqlite
2142 default_pass_scheme = SHA512-CRYPT
2143 password_query = SELECT email as user, password FROM users WHERE email='%u';
2144 user_query = SELECT email AS user, "mail" as uid, "mail" as gid, "/m/md/%d/%n" as home FROM users WHERE email='%u';
2145 iterate_query = SELECT email AS user FROM users;
2147 m
chmod 0600 /etc
/dovecot
/dovecot-sql.conf.ext
# per Dovecot instructions
2149 # db needs to be in a www-data writable directory
2150 db
=/m
/rc
/users.sqlite
2151 if [[ ! -s $db ]]; then
2153 m sqlite3
$db <<'EOF'
2154 CREATE TABLE users (
2155 id INTEGER PRIMARY KEY AUTOINCREMENT,
2156 email TEXT NOT NULL UNIQUE,
2157 password TEXT NOT NULL,
2159 privileges TEXT NOT NULL DEFAULT '');
2162 # users.sqlite is saved into /p/c/machine_specific, so update it there!.
2164 # example of adding a user:
2165 # hash: doveadm pw -s SHA512-CRYPT -p passhere
2166 # sqlite3 /m/rc/users.sqlite <<'EOF'
2167 #insert into users (email, password) values ('testignore@bk.b8.nz', 'hash');
2169 # update users set password = 'hash' where email = 'testignore@bk.b8.nz';
2171 # this should be at the end since it requires a valid dovecot config
2172 m sievec
/etc
/dovecot
/sieve-spam.sieve
2176 # roundcube uses this
2178 chown
mail.
mail /m
/sieve
2179 m pi dovecot-managesieved
2183 # * thunderbird autoconfig setup
2185 bkdomains
=(expertpathologyreview.com amnimal.ninja
)
2186 if [[ $HOSTNAME == bk
]]; then
2187 for domain
in ${bkdomains[@]}; do
2188 m
/a
/exe
/web-conf apache2 autoconfig.
$domain
2189 dir
=/var
/www
/autoconfig.
$domain/html
/mail
2191 # taken from mailinabox
2192 u
$dir/config-v1.1.xml
<<EOF
2193 <?xml version="1.0" encoding="UTF-8"?>
2194 <clientConfig version="1.1">
2195 <emailProvider id="$domain">
2196 <domain>$domain</domain>
2198 <displayName>$domain Mail</displayName>
2199 <displayShortName>$domain</displayShortName>
2201 <incomingServer type="imap">
2202 <hostname>mail2.iankelling.org</hostname>
2204 <socketType>SSL</socketType>
2205 <username>%EMAILADDRESS%</username>
2206 <authentication>password-cleartext</authentication>
2209 <outgoingServer type="smtp">
2210 <hostname>mail2.iankelling.org</hostname>
2212 <socketType>STARTTLS</socketType>
2213 <username>%EMAILADDRESS%</username>
2214 <authentication>password-cleartext</authentication>
2215 <addThisServer>true</addThisServer>
2216 <useGlobalPreferredServer>false</useGlobalPreferredServer>
2219 <documentation url="https://$domain/">
2220 <descr lang="en">$domain website.</descr>
2225 <loginPage url="https://$domain/roundcube" />
2226 <loginPageInfo url="https://$domain/roundcube" >
2227 <username>%EMAILADDRESS%</username>
2228 <usernameField id="rcmloginuser" name="_user" />
2229 <passwordField id="rcmloginpwd" name="_pass" />
2230 <loginButton id="rcmloginsubmit" />
2233 <clientConfigUpdate url="https://autoconfig.$domain/mail/config-v1.1.xml" />
2241 if [[ $HOSTNAME == bk
]]; then
2243 # zip according to /installer
2244 # which requires adding a line to /usr/local/lib/roundcubemail/config/config.inc.php
2245 # $config['enable_installer'] = true;
2246 pi roundcube roundcube-sqlite3 php-zip apache2 php-fpm
2248 ### begin composer install
2249 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
2251 EXPECTED_CHECKSUM
="$(php -r 'copy("https
://composer.github.io
/installer.sig
", "php
://stdout
");')"
2252 php
-r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
2253 ACTUAL_CHECKSUM
="$(php -r "echo hash_file
('sha384', 'composer-setup.php');")"
2255 if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
2257 >&2 echo 'ERROR: Invalid installer checksum'
2258 rm composer-setup.php
2262 php composer-setup.php
--quiet
2263 rm composer-setup.php
2265 # based on error when running composer
2266 mkdir
-p /var
/www
/.composer
2267 chown www-data
:www-data
/var
/www
/.composer
2269 ### end composer install
2271 rcdirs
=(/usr
/local
/lib
/rcexpertpath
/usr
/local
/lib
/rcninja
)
2272 ncdirs
=(/var
/www
/ncexpertpath
/var
/www
/ncninja
)
2273 # point debian cronjob to our local install, preventing daily cron error
2275 # debian's cronjob will fail, remove both paths it uses just to be sure
2276 rm -fv /usr
/share
/roundcube
/bin
/cleandb.sh
/etc
/cron.d
/roundcube-core
2278 #### begin dl roundcube
2279 # note, im r2e subbed to https://github.com/roundcube/roundcubemail/releases.atom
2280 v
=1.4.13; f
=roundcubemail-
$v-complete.
tar.gz
2282 if [[ -e $f ]]; then
2283 timestamp
=$
(stat
-c %Y
$f)
2287 m wget
-nv -N https
://github.com
/roundcube
/roundcubemail
/releases
/download
/$v/$f
2288 new_timestamp
=$
(stat
-c %Y
$f)
2289 for rcdir
in ${rcdirs[@]}; do
2290 if [[ $timestamp != "$new_timestamp" ||
! -e "$rcdir/config/secret" ]]; then
2291 m
tar -C /usr
/local
/lib
--no-same-owner -zxf $f
2293 m
mv /usr
/local
/lib
/roundcubemail-
$v $rcdir
2296 #### end dl roundcube
2298 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2299 domain
=${bkdomains[i]}
2304 # copied from debians cronjob
2305 u
/etc
/cron.d
/$rcbase <<EOF
2306 # Roundcube database cleaning: finally removes all records that are
2307 # marked as deleted.
2308 0 5 * * * www-data $rcdir/bin/cleandb.sh >/dev/null
2311 m
/a
/exe
/web-conf
- apache2
$domain <<EOF
2312 Alias /roundcube $rcdir
2313 ### begin roundcube settings
2314 # taken from /etc/apache2/conf-available/roundcube.conf version 1.4.8+dfsg.1-1~bpo10+1
2316 Options +FollowSymLinks
2317 # This is needed to parse $rcdir/.htaccess.
2321 # Protecting basic directories:
2322 <Directory $rcdir/config>
2323 Options -FollowSymLinks
2326 ### end roundcube settings
2329 ### begin nextcloud settings
2330 Alias /nextcloud "$ncdir/"
2334 Options FollowSymLinks MultiViews
2336 <IfModule mod_dav.c>
2342 # based on install checker, links to
2343 # https://docs.nextcloud.com/server/19/admin_manual/issues/general_troubleshooting.html#service-discovery
2344 # their example was a bit wrong, I figured it out by adding
2345 # LogLevel warn rewrite:trace5
2346 # then watching the apache logs
2349 RewriteRule ^/\.well-known/host-meta /nextcloud/public.php?service=host-meta [QSA,L]
2350 RewriteRule ^/\.well-known/host-meta\.json /nextcloud/public.php?service=host-meta-json [QSA,L]
2351 RewriteRule ^/\.well-known/webfinger /nextcloud/public.php?service=webfinger [QSA,L]
2352 RewriteRule ^/\.well-known/carddav /nextcloud/remote.php/dav/ [R=301,L]
2353 RewriteRule ^/\.well-known/caldav /nextcloud/remote.php/dav/ [R=301,L]
2354 ### end nextcloud settings
2356 if [[ ! -e $rcdir/config
/secret
]]; then
2357 base64
</dev
/urandom |
head -c24 >$rcdir/config
/secret ||
[[ $?
== 141 ||
${PIPESTATUS[0]} == 32 ]]
2359 secret
=$
(cat $rcdir/config
/secret
)
2361 rclogdir
=/var
/log
/$rcbase
2362 rctmpdir
=/var
/tmp
/$rcbase
2363 rcdb
=/m
/rc
/$rcbase.sqlite
2364 # config from mailinabox
2365 u
$rcdir/config
/config.inc.php
<<EOF
2368 # debian creates this for us
2369 \$config['log_dir'] = '$rclogdir/';
2370 # debian also creates a temp dir, but it is under its install dir,
2371 # seems better to have our own.
2372 \$config['temp_dir'] = '$rctmpdir/';
2373 \$config['db_dsnw'] = 'sqlite:///$rcdb?mode=0640';
2374 \$config['default_host'] = 'ssl://localhost';
2375 \$config['default_port'] = 993;
2376 \$config['imap_conn_options'] = array(
2378 'verify_peer' => false,
2379 'verify_peer_name' => false,
2382 \$config['imap_timeout'] = 15;
2383 \$config['smtp_server'] = 'tls://127.0.0.1';
2384 \$config['smtp_conn_options'] = array(
2386 'verify_peer' => false,
2387 'verify_peer_name' => false,
2390 \$config['product_name'] = 'webmail';
2391 \$config['des_key'] = '$secret';
2392 \$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'carddav', 'html5_notifier');
2393 \$config['skin'] = 'elastic';
2394 \$config['login_autocomplete'] = 2;
2395 \$config['password_charset'] = 'UTF-8';
2396 \$config['junk_mbox'] = 'Spam';
2397 # disable builtin addressbook
2398 \$config['address_book_type'] = '';
2402 m mkdir
-p $rclogdir
2403 m
chmod 750 $rclogdir
2404 m chown www-data
:adm
$rclogdir
2405 # note: subscribed to updates:
2406 # r2e add rcmcarddav https://github.com/blind-coder/rcmcarddav/commits/master.atom ian@iankelling.org
2407 # r2e add roundcube https://github.com/roundcube/roundcubemail/releases.atom ian@iankelling.org
2408 m mkdir
-p $rctmpdir /m
/rc
2409 m chown
-R www-data.www-data
$rctmpdir /m
/rc
2410 m
chmod 750 $rctmpdir
2411 # Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
2412 # todo: check for other mailinabox things
2413 m sudo
-u www-data
touch $rclogdir/errors.log
2415 #### begin carddav install
2416 # This is the official roundcube carddav repo.
2417 # Install doc suggests downloading with composer, but that
2418 # didnt work, it said some ldap package for roundcube was missing,
2419 # but I dont want to download some extra ldap thing.
2420 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/INSTALL.md
2421 verf
=$rcdir/plugins
/carddav
/myversion
2425 if [[ -e $verf ]]; then
2426 if [[ $
(cat $verf) != "$v" ]]; then
2434 m
rm -rf $rcdir/plugins
/carddav
2436 m wget
-nv -O $tmpd/t.tgz https
://github.com
/blind-coder
/rcmcarddav
/releases
/download
/v
$v/carddav-v
$v.
tar.gz
2440 m chown
-R www-data
:www-data
$rcdir/plugins
/carddav
2441 m
cd $rcdir/plugins
/carddav
2443 m sudo
-u www-data composer.phar update
--no-dev
2445 m sudo
-u www-data composer.phar
install --no-dev
2447 m chown
-R root
:root
$rcdir/plugins
/carddav
2451 # So, strangely, this worked in initial testing, but then
2452 # on first run it wouldn't show the existing contacts until
2453 # I went into the carddav settings and did "force immediate sync",
2454 # which seemed to fix things. Note, some of these settings
2455 # get initalized per/addressbook in the db, then need changing
2456 # there or through the settings menu.
2458 # About categories, see https://www.davx5.com/tested-with/nextcloud
2459 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/GROUPS.md
2460 u
$rcdir/plugins
/carddav
/config.inc.php
<<EOF;
2462 \$prefs['_GLOBAL']['hide_preferences'] = false;
2463 \$prefs['davserver'] = array(
2464 # name in the UI is kind of dumb. This is just something short that seems to fit ok.
2466 'username' => '%u', // login username
2467 'password' => '%p', // login password
2468 'url' => 'https://$domain/nextcloud/remote.php/dav/addressbooks/users/%u/contacts',
2470 'readonly' => false,
2471 'refresh_time' => '00:10:00',
2472 'fixed' => array('username','password'),
2473 'use_categories' => false,
2478 #### end carddav install
2481 if [[ ! -d html5_notifier
]]; then
2482 m git clone https
://github.com
/stremlau
/html5_notifier
2484 cd $rcdir/plugins
/html5_notifier
2487 # todo: try out roundcube plugins: thunderbird labels
2489 # Password changing plugin settings
2490 cat $rcdir/plugins
/password
/config.inc.php.dist
- >$rcdir/plugins
/password
/config.inc.php
<<'EOF'
2491 # following are from mailinabox
2492 $config['password_minimum_length'] = 8;
2493 $config['password_db_dsn'] = 'sqlite:////m/rc/users.sqlite';
2494 $config['password_query'] = 'UPDATE users SET password=%D WHERE email=%u';
2495 $config['password_dovecotpw'] = '/usr/bin/doveadm pw';
2496 $config['password_dovecotpw_method'] = 'SHA512-CRYPT';
2497 $config['password_dovecotpw_with_method'] = true;
2499 # so PHP can use doveadm, for the password changing plugin
2500 m usermod
-a -G dovecot www-data
2501 m usermod
-a -G mail $u
2503 # so php can update passwords
2504 m chown www-data
:dovecot
/m
/rc
/users.sqlite
2505 m
chmod 664 /m
/rc
/users.sqlite
2507 # Run Roundcube database migration script (database is created if it does not exist)
2508 m
$rcdir/bin
/updatedb.sh
--dir $rcdir/SQL
--package roundcube
2509 m chown www-data
:www-data
$rcdb
2511 done # end loop over domains and rcdirs
2513 ### begin php setup for rc ###
2514 # Enable PHP modules.
2515 m phpenmod
-v php mcrypt imap
2516 # dpkg says this is required.
2517 # nextcloud needs these too
2518 m a2enmod proxy_fcgi setenvif
2519 fpm
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* (php[^ ]*-fpm)( .*|$)/\1/p') # eg: php7.4-fpm
2520 phpver
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* php([^ ]*)-fpm( .*|$)/\1/p')
2522 # 3 useless guides on php fpm fcgi debian 10 later, i figure out from reading
2523 # /etc/apache2/conf-enabled/php7.3-fpm.conf
2524 m a2dismod php
$phpver
2525 # according to /install, we should set date.timezone,
2526 # but that is dumb, the system already has the right zone in
2527 # $rclogdir/errors.log
2528 # todo: consider other settings in
2529 # /a/opt/mailinabox/setup/nextcloud.sh
2530 u
/etc
/php
/$phpver/cli
/conf.d
/30-local.ini
<<'EOF'
2534 u
/etc
/php
/$phpver/fpm
/conf.d
/30-local.ini
<<'EOF'
2535 date.timezone = "America/New_York"
2537 upload_max_filesize = 2000M
2538 post_max_size = 2000M
2539 # install checker, nextcloud/settings/admin/overview
2542 m systemctl restart
$fpm
2543 # dunno if reload/restart is needed
2544 m systemctl reload apache2
2545 # note bk backups are defined in crontab outside this file
2546 ### end php setup for rc ###
2548 fi # end roundcube setup
2552 if [[ $HOSTNAME == bk
]]; then
2553 # from install checker, nextcloud/settings/admin/overview and
2554 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2555 # curl from the web installer requirement, but i switched to cli
2556 # it recommends php-file info, but that is part of php7.3-common, already got installed
2558 m pi php-curl php-bz2 php-gmp php-bcmath php-imagick php-apcu
2560 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2561 cat >/etc
/php
/$phpver/fpm
/pool.d
/localwww.conf
<<'EOF'
2566 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2567 domain
=${bkdomains[i]}
2569 myncdir
=/var
/local
/${ncdir##*/}
2573 if [[ ! -e $ncdir/index.php
]]; then
2574 # if we wanted to only install a specific version, use something like
2575 # file=latest-22.zip
2577 m wget
-nv -N https
://download.nextcloud.com
/server
/releases
/$file
2581 m chown
-R www-data.www-data nextcloud
2582 m
mv nextcloud
$ncdir
2585 if [[ ! -e $myncdir/done-install
]]; then
2587 m sudo
-u www-data php occ maintenance
:install --database sqlite
--admin-user iank
--admin-pass $nextcloud_admin_pass
2588 m
touch $myncdir/done-install
2592 # if we did this more than once, it would revert the
2593 # version number to the original.
2594 if [[ ! -e $myncdir/config.php-orig ||
! -s config.php
]]; then
2595 if [[ -s config.php
]]; then
2596 m
cp -a config.php
$myncdir/config.php-orig
2597 # keep the file so it keeps the same permissions.
2598 truncate
-s0 config.php
2600 cat $myncdir/config.php-orig
- >$myncdir/tmp.php
<<EOF
2601 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/email_configuration.html
2602 \$CONFIG["mail_smtpmode"] = "sendmail";
2603 \$CONFIG["mail_smtphost"] = "127.0.0.1";
2604 \$CONFIG["mail_smtpport"] = 25;
2605 \$CONFIG["mail_smtptimeout"] = 10;
2606 \$CONFIG["mail_smtpsecure"] = "";
2607 \$CONFIG["mail_smtpauth"] = false;
2608 \$CONFIG["mail_smtpauthtype"] = "LOGIN";
2609 \$CONFIG["mail_smtpname"] = "";
2610 \$CONFIG["mail_smtppassword"] = "";
2611 \$CONFIG["mail_domain"] = "$domain";
2613 # https://github.com/nextcloud/user_external#readme
2614 # plus mailinabox example
2615 #\$CONFIG['user_backends'] = array(array('class' => 'OC_User_IMAP','arguments' => array('127.0.0.1', 143, null),),);
2618 # based on installer check
2619 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/caching_configuration.html
2620 \$CONFIG['memcache.local'] = '\OC\Memcache\APCu';
2622 \$CONFIG['overwrite.cli.url'] = 'https://$domain/nextcloud';
2623 \$CONFIG['htaccess.RewriteBase'] = '/nextcloud';
2624 \$CONFIG['trusted_domains'] = array (
2628 fwrite(STDOUT, "<?php\n\\\$CONFIG = ");
2629 var_export(\$CONFIG);
2630 fwrite(STDOUT, ";\n");
2632 e running php
$myncdir/tmp.php
2633 # note: we leave it around place for debugging
2634 # shellcheck disable=SC2024 # intended
2635 sudo
-u www-data php
$myncdir/tmp.php
>config.php
2638 m sudo
-u www-data php occ maintenance
:update
:htaccess
2639 list
=$
(sudo
-u www-data php
$ncdir/occ
--output=json_pretty app
:list
)
2640 # user_external not compaible with nc 23
2641 for app
in contacts calendar
; do
2642 if [[ $
(printf "%s\n" "$list"| jq
".enabled.$app") == null
]]; then
2644 m sudo
-u www-data php occ app
:install $app
2647 u
/etc
/systemd
/system
/$ncbase.service
<<EOF
2649 Description=ncup $ncbase
2650 After=multi-user.target
2654 ExecStart=/usr/local/bin/ncup $ncbase
2656 IOSchedulingClass=idle
2657 CPUSchedulingPolicy=idle
2659 u
/etc
/systemd
/system
/$ncbase.timer
<<EOF
2661 Description=ncup $ncbase timer
2667 WantedBy=timers.target
2669 systemctl
enable --now $ncbase.timer
2670 u
/usr
/local
/bin
/ncup
<<'EOFOUTER'
2673 source /usr/local/lib/err
2675 m() { printf "%s\n" "$*"; "$@"; }
2677 echo failed nextcloud update for $ncbase >&2
2678 # -odf or else systemd will kill the background delivery process
2679 # and the message will sit in the queue until the next queue run.
2681 To: alerts@iankelling.org
2682 From: www-data@$(hostname -f)
2683 Subject: failed nextcloud update for $ncbase
2685 For logs, run: jr -u $ncbase
2689 if [[ $(id -u -n) != www-data ]]; then
2690 echo error: running as wrong user: $(id -u -n), expected www-data
2695 echo error: expected an arg, nextcloud relative base dir
2701 # https://docs.nextcloud.com/server/22/admin_manual/maintenance/update.html?highlight=updater+phar
2702 # the docs claim this is all you need, which is not true.
2703 # You will go to the web ui and it will say that you need to click a button to update,
2704 # or that you can run occ upgrade
2705 m php /var/www/$ncbase/updater/updater.phar -n
2706 # throw a sleep in just because who knows what else is undocumented
2710 chmod +x
/usr
/local
/bin
/ncup
2712 mkdir
-p /var
/www
/cron-errors
2713 chown www-data.www-data
/var
/www
/cron-errors
2714 u
/etc
/cron.d
/$ncbase <<EOF
2715 PATH=/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin
2717 # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/background_jobs_configuration.html
2718 */5 * * * * www-data php -f $ncdir/cron.php --define apc.enable_cli=1 |& log-once nccron
2725 # * exim host conditional config
2729 all_dirs
=(/p
/c
/filesystem
)
2730 for x
in /p
/c
/machine_specific
/*.hosts
/a
/bin
/ds
/machine_specific
/*.hosts
; do
2731 if grep -qxF $HOSTNAME $x; then all_dirs
+=( ${x%.hosts} ); fi
2734 for d
in ${all_dirs[@]}; do
2735 f
=$d/etc
/exim
4/passwd
2736 if [[ -e $f ]]; then
2739 tmp
=($d/etc
/exim
4/*.pem
)
2740 if (( ${#tmp[@]} )); then
2745 if (( ${#files[@]} )); then
2746 sudo rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 ${files[@]} /etc
/exim
4/
2754 # avoid accepting mail for invalid users
2755 # https://wiki.dovecot.org/LMTP/Exim
2756 cat >>/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2758 message = invalid recipient
2759 domains = +local_domains
2760 !verify = recipient/callout=no_cache
2762 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2766 server_socket = /var/run/dovecot/auth-client
2767 server_set_id = $auth1
2772 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2773 # from 30_exim4-config_examples
2777 server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
2778 server_set_id = $auth2
2780 .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
2781 server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
2786 # ** exim: main daemon use non-default config file
2789 # to see the default comments in /etc/default/exim4:
2790 # s update-exim4defaults --force --init
2791 # which will overwrite any existing file
2792 u
/etc
/default
/exim4
<<'EOF'
2793 QUEUERUNNER='combined'
2795 COMMONOPTIONS='-C /etc/exim4/my.conf'
2796 UPEX4OPTS='-o /etc/exim4/my.conf'
2797 # i use epanic-clean for alerting if there are bad paniclog entries
2798 E4BCD_WATCH_PANICLOG='no'
2800 # make exim be a nonroot setuid program.
2801 chown Debian-exim
:Debian-exim
/usr
/sbin
/exim4
2802 # needs guid set in order to become Debian-exim
2803 chmod g
+s
,u
+s
/usr
/sbin
/exim4
2804 # need this to avoid error on service reload:
2805 # 2022-08-07 18:44:34.005 [892491] pid 892491: SIGHUP received: re-exec daemon
2806 # 2022-08-07 18:44:34.036 [892491] cwd=/var/spool/exim4 5 args: /usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf
2807 # 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)
2808 # note: the daemon gives up and dies after retrying those 9 times.
2809 # I came upon this by guessing and trial and error.
2810 setcap CAP_NET_BIND_SERVICE
+ei
/usr
/sbin
/exim4
2811 u
/etc
/exim
4/trusted_configs
<<'EOF'
2817 u
/etc
/default
/exim4
<<'EOF'
2818 QUEUERUNNER='combined'
2828 # no reason to expect it to ever be there.
2829 rm -fv /etc
/systemd
/system
/exim4.service.d
/nonroot.conf
2833 for d
in /a
/d
/m
/media
/mnt
/nocow
/o
/p
/q
; do
2834 if [[ -d $d ]]; then
2838 u
/etc
/systemd
/system
/exim4.service.d
/nonroot.conf
<<EOF
2840 # see 56.2 Root privilege in exim spec
2841 AmbientCapabilities=CAP_NET_BIND_SERVICE
2842 # https://www.redhat.com/sysadmin/mastering-systemd
2843 # things that seem good and reasonabl.e
2846 # note, in t10 systemd, if one of these is an sshfs mountpoint,
2847 # this whole setting doesnt work. tried it with a newer systemd 250 though
2848 # an nspawn, and it worked there.
2849 InaccessiblePaths=${dirs[@]}
2850 # this gives us the permission denied error:
2851 # socket bind() to port 25 for address (any IPv6) failed: Permission denied
2852 # but we also have to set the file capabilities to avoid the error.
2853 #NoNewPrivileges=yes
2856 # when we get newer systemd
2859 u
/etc
/exim
4/conf.d
/main
/000_local-noroot
<<'EOF'
2860 # see 56.2 Root privilege in exim spec
2861 deliver_drop_privilege = true
2864 300_exim4-config_real_local
2865 600_exim4-config_userforward
2866 700_exim4-config_procmail
2867 800_exim4-config_maildrop
2870 for f
in ${files[@]}; do
2871 echo "# iank: removed due to running nonroot"|u
/etc
/exim
4/conf.d
/router
/$f
2878 # ** $MAIL_HOST|bk|je)
2881 echo|u
/etc
/exim
4/conf.d
/router
/165_backup_local
2883 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2884 # note: some things we don't set that are here by default because they are unused.
2885 dc_local_interfaces=''
2886 dc_eximconfig_configtype='internet'
2887 dc_localdelivery='dovecot_lmtp'
2889 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2890 # recommended if dns is expected to work
2891 CHECK_RCPT_VERIFY_SENDER = true
2892 # default config comment says: If you enable this, you might reject legitimate mail,
2893 # but eggs has had this a long time, so that seems unlikely.
2894 CHECK_RCPT_SPF = true
2895 CHECK_RCPT_REVERSE_DNS = true
2896 CHECK_MAIL_HELO_ISSUED = true
2899 CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl
2900 CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl
2903 #dmarc_tld_file = /etc/public_suffix_list.dat
2911 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2912 dc_relay_nets='defaultnn.b8.nz'
2915 # no clamav on je, it has 1.5g memory and clamav uses most of it
2916 u
/etc
/exim
4/conf.d
/clamav_data_acl
<<'EOF'
2918 !hosts = +iank_trusted
2919 !authenticated = plain_server:login_server
2920 condition = ${if def:malware_name}
2921 remove_header = Subject:
2922 add_header = Subject: [Clamav warning: $malware_name] $h_subject
2923 log_message = heuristic malware warning: $malware_name
2926 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2927 # je.b8.nz will run out of memory with freshclam
2928 av_scanner = clamd:/var/run/clamav/clamd.ctl
2931 cat >> /etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
2933 malware = */defer_ok
2934 !condition = ${if match {$malware_name}{\N^Heuristic\N}}
2935 message = This message was detected as possible malware ($malware_name).
2938 cat >/etc
/exim
4/conf.d
/main
/000_local-nn
<<EOF
2939 # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the
2940 # smarthost config type, not sure.
2941 # failing message on mail-tester.com:
2942 # We check if there is a server (A Record) behind your hostname kd.
2943 # You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software
2944 # https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box
2945 # and this one seemed appropriate from grepping config.
2946 # I originally set this to li.iankelling.org, but then ended up with errors when li tried to send
2947 # mail to kd, so this should basically be a name that no host has as their
2948 # canonical hostname since the actual host sits behind a nat and changes.
2949 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org
2950 # I used this to avoid sender verification, didnt work but it still
2951 # makes sense based on the spec.
2952 hosts_treat_as_local = defaultnn.b8.nz
2954 # Outside nn, we get the default cert location from a debian macro,
2955 # and the cert file is put in place by a certbot hook.
2956 MAIN_TLS_CERTIFICATE = /etc/exim4/fullchain.pem
2957 MAIN_TLS_PRIVATEKEY = /etc/exim4/privkey.pem
2960 u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
<<'EOF'
2962 debug_print = "R: smarthost for $local_part@$domain"
2963 driver = manualroute
2964 domains = ! +local_domains
2965 # comment senders to send most mail through eggs, helps fsfs sender reputation.
2966 # uncomment and optionally move to 188 file to send through my own servers again
2968 transport = smarthost_dkim
2969 route_list = * fencepost.gnu.org::587 byname
2970 host_find_failed = ignore
2971 same_domain_copy_routing = yes
2975 /a
/exe
/cedit defaultnn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2976 10.173.8.1 defaultnn.b8.nz
2982 u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
<<'EOF'
2983 # copied from /etc/exim4/conf.d/router/200_exim4-config_primary, but
2984 # use vpn transport. lower priority so it overrides the default route.
2985 # Use this in case our vpn fails, we dont send anything without it.
2986 .ifdef DCconfig_internet
2988 debug_print = "R: dnslookup for $local_part@$domain"
2990 domains = ! +local_domains
2991 transport = remote_smtp_vpn
2992 same_domain_copy_routing = yes
2993 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
2999 # note on backups: I used to do an automatic sshfs and restricted
3000 # permissions to a specific directory on the remote server, /bu/mnt,
3001 # which required using a dedicated user, but realized smtp will be
3002 # more reliable and less fuss. If I ever need that again, see the
3003 # history of this file, and bum in brc2.
3004 u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
<<'EOF'
3007 # b is just an arbirary short string
3008 data = b@eximbackup.b8.nz
3009 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3010 # note, to test this, i could temporarily allow testignore.
3011 # alerts avoids potential mail loop. root is already
3012 # redirected earlier, so that is just being overly cautious.
3013 local_parts = ! root : ! testignore : ! alerts
3015 errors_to = alerts@iankelling.org
3020 # This allows for forwarded mail to not get most rcpt checks, especially SPF,
3021 # which would incorrectly get denied.
3022 u
/etc
/exim
4/host_local_deny_exceptions
<<'EOF'
3027 # cron email from smarthost hosts will automatically be to
3028 # USER@FQDN. I redirect that to alerts@, on the smarthosts, but in
3029 # case that doesn't work, we still want to accept that mail, but not
3030 # from any host except the smarthosts. local_hostnames and this rule
3031 # is for that purpose.
3032 u
/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
3035 domains = +local_hostnames
3038 # for testing bounce behavior
3040 # senders = testlist-bounces+test=zroe.org@fsf.org
3041 # message = iank-bounce
3043 echo|u
/etc
/exim
4/conf.d
/router
/880_universal_forward
3046 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3047 MAILDIR_HOME_MAILDIR_LOCATION = /m/md/Sent
3051 u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
<<'EOF'
3052 # ian: save a copy of sent mail. i thought of other ways to
3053 # do this, for example, to only save sent mail that is not sent
3054 # from my mail client which saves a copy by default, but in the
3055 # end, it seems simplest to turn that off. We want to save
3056 # external mail sent by smarthosts.
3059 domains = ! +local_domains
3060 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3061 data = vojdedIdNejyebni@b8.nz
3066 # for iank@fsf.org, i have mail.fsf.org forward it to fsf@iankelling.org.
3067 # and also have mail.iankelling.org whitelisted as a relay domain.
3068 # I could avoid that if I changed this to submit to 587 with a
3069 # password like a standard mua.
3070 u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
<<'EOF'
3071 # ian: copied from /etc/exim4/conf.d/router/200_exim4-config_primary, and added senders = and
3072 # replaced DCsmarthost with hostname
3074 debug_print = "R: smarthost for $local_part@$domain"
3075 driver = manualroute
3076 domains = ! +local_domains
3078 transport = remote_smtp_smarthost
3079 route_list = * mail.fsf.org::587 byname
3080 host_find_failed = ignore
3081 same_domain_copy_routing = yes
3085 debug_print = "R: smarthost for $local_part@$domain"
3086 driver = manualroute
3087 domains = ! +local_domains
3088 senders = *@posteo.net
3089 transport = remote_smtp_smarthost
3090 route_list = * posteo.de::587 byname
3091 host_find_failed = ignore
3092 same_domain_copy_routing = yes
3096 # Greping /etc/exim4, unqualified mails this would end up as
3097 # a return path, so it should go somewhere we will see.
3098 # The debconf output about mailname is as follows:
3099 # The 'mail name' is the domain name used to 'qualify' mail addresses without a domain
3101 # This name will also be used by other programs. It should be the single, fully
3102 # qualified domain name (FQDN).
3103 # Thus, if a mail address on the local host is foo@example.org, the correct value for
3104 # this option would be example.org.
3105 # This name won\'t appear on From: lines of outgoing messages if rewriting is enabled.
3106 echo iankelling.org
> /etc
/mailname
3109 # mail.iankelling.org so local imap clients can connect with tls and
3110 # when they happen to not be local.
3111 # todo: this should be 10.8.0.4
3113 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3114 # note: i put nn.b8.nz into bind for good measure
3115 10.173.8.2 nn.b8.nz mx.iankelling.org
3118 # note: systemd-resolved will consult /etc/hosts, dnsmasq wont. this assumes
3119 # weve configured this file in dnsmasq if we are using it.
3120 /a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf
<<'EOF' || [[ $? == 1 ]]
3121 server=/mx.iankelling.org/127.0.1.1
3123 # I used to use debconf-set-selections + dpkg-reconfigure,
3124 # which then updates this file
3125 # but the process is slower than updating it directly and then I want to set other things in
3126 # update-exim4.conf.conf, so there's no point.
3127 # The file is documented in man update-exim4.conf,
3128 # except the man page is not perfect, read the bash script to be sure about things.
3130 # The debconf questions output is additional documentation that is not
3131 # easily accessible, but super long, along with the initial default comment in this
3132 # file, so I've saved that into ./mail-notes.conf.
3134 # # TODO: remove mx.iankelling.org once systems get updated mail-setup from jan 2022
3135 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3136 # man page: is used to build the local_domains list, together with "localhost"
3137 # this is duplicated in a later router.
3138 dc_other_hostnames='iankelling.org;zroe.org;r2e.iankelling.org;mx.iankelling.org;!je.b8.nz;!bk.b8.nz;*.b8.nz;b8.nz'
3142 # dmarc. not used currently
3143 f
=/etc
/cron.daily
/refresh-dmarc-tld-file
3147 wget -q -N https://publicsuffix.org/list/public_suffix_list.dat
3153 ## we use this host to monitor MAIL_HOST and host a mail server for someone
3157 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3161 sed -r -f - /etc
/init.d
/exim4
<<'EOF' |u /etc/init.d/exim4in
3162 s,/etc/default/exim4,/etc/default/exim4in,g
3163 s,/run/exim4/exim.pid,/run/exim4/eximin.pid,g
3164 s,(^[ #]*Provides:).*,\1 exim4in,
3165 s,(^[ #]*NAME=).*,\1"exim4in",
3167 chmod +x
/etc
/init.d
/exim4in
3168 u
/etc
/systemd
/system
/exim4in.service.d
/alwaysrestart.conf
<<'EOF'
3170 # needed to continually restart
3171 StartLimitIntervalSec=0
3175 # time to sleep before restarting a service
3179 u
/etc
/default
/exim4in
<<'EOF'
3180 # defaults but no queue runner and alternate config dir
3182 COMMONOPTIONS='-oP /run/exim4/eximin.pid'
3183 UPEX4OPTS='-d /etc/myexim4'
3186 echo bk.b8.nz
> /etc
/mailname
3187 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3188 # man page: is used to build the local_domains list, together with "localhost"
3189 dc_other_hostnames='amnimal.ninja;expertpathologyreview.com;bk.b8.nz'
3195 echo je.b8.nz
> /etc
/mailname
3196 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3197 dc_other_hostnames='je.b8.nz'
3200 # ** not MAIL_HOST|bk|je
3202 # this one should be removed for all non mail hosts, but
3203 # bk and je never become mail_host
3204 echo|u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
3205 echo|u
/etc
/exim
4/conf.d
/router
/160_backup_redir
3206 echo|u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
3207 echo|u
/etc
/exim
4/conf.d
/router
/185_sentarchive
3208 echo|u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
3209 echo|u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
3210 echo|u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
3211 echo|u
/etc
/exim
4/conf.d
/rcpt_local_acl
3212 echo|u
/etc
/exim
4/conf.d
/main
/000_local-nn
3213 echo|u
/etc
/exim
4/conf.d
/clamav_data_acl
3217 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3218 MAIN_TLS_CERTIFICATE = /etc/exim4/certs/$wghost/fullchain.pem
3219 MAIN_TLS_PRIVATEKEY = /etc/exim4/certs/$wghost/privkey.pem
3220 # so we can maintiain the originals of the backups.
3221 # we wouldnt want this if we were dealing with any other
3222 # local deliveries, but we sent all others to the smarthost
3223 # which then strips the headers.
3224 envelope_to_remove = false
3225 return_path_remove = false
3229 # catches things like cronjob email
3230 u
/etc
/exim
4/conf.d
/router
/880_universal_forward
<<'EOF'
3233 domains = +local_domains
3234 data = alerts@iankelling.org
3238 for unit
in ${nn_progs[@]}; do
3239 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
3243 # dont i dont care if defaultnn section gets left, it wont
3245 echo |
/a
/exe
/cedit nn
/etc
/hosts ||
[[ $?
== 1 ]]
3246 echo |
/a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf ||
[[ $?
== 1 ]]
3248 # note: condition duplicated at else
3251 install -d -g Debian-exim
-o Debian-exim
-m 771 /bu
/md
3252 if [[ -e /bu
/md
/cur
&& $
(stat
-c %u
/bu
/md
/cur
) == 1000 ]]; then
3253 chown
-R Debian-exim
:Debian-exim
/bu
/md
3255 u
/etc
/exim
4/conf.d
/transport
/30_backup_maildir
<<EOF
3256 # modified debian maildir transport
3261 # note, no return path or envelope added
3263 directory_mode = 0700
3265 mode_fail_narrower = false
3268 u
/etc
/exim
4/conf.d
/router
/165_backup_local
<<'EOF'
3269 ### router/900_exim4-config_local_user
3270 #################################
3273 debug_print = "R: local_user for $local_part@$domain"
3275 domains = eximbackup.b8.nz
3276 transport = backup_maildir
3279 # Bind to wghole to receive mailbackup.
3280 wgholeip
=$
(sed -rn 's/^ *Address *= *([^/]+).*/\1/p' /etc
/wireguard
/wghole.conf
)
3281 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3282 dc_other_hostnames='eximbackup.b8.nz'
3283 dc_local_interfaces='127.0.0.1;::1;$wgholeip'
3286 # wghole & thus exim will fail to start without internet connectivity.
3287 u
/etc
/systemd
/system
/exim4.service.d
/backup.conf
<<'EOF'
3289 StartLimitIntervalSec=0
3296 else # if $bhost_t; then
3297 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3298 # Note: If theres like a temporary problem where mail gets sent to
3299 # one of these hosts, if exim isnt listening, it will be a temporary error
3300 # instead of a permanent 5xx.
3301 dc_local_interfaces='127.0.0.1;::1'
3303 rm -fv /etc
/systemd
/system
/exim4.service.d
/backup.conf
3305 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3306 dc_eximconfig_configtype='smarthost'
3307 dc_smarthost='$smarthost'
3310 hostname
-f |u
/etc
/mailname
3311 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3312 # The manpage incorrectly states this will do header rewriting, but
3313 # that only happens if we have dc_hide_mailname is set.
3314 dc_readhost='iankelling.org'
3315 # Only used in case of bounces.
3316 dc_localdelivery='maildir_home'
3324 # ** $MAILHOST|bk, things that belong at the end
3327 # config for the non-nn exim. note, it uses not default dir, but we
3328 # generate that into the default config file
3329 m rsync
-ra --delete --delete-excluded \
3330 --exclude=/conf.d
/router
/161_backup_redir_nn \
3331 --exclude=/conf.d
/router
/186_sentarchive_nn \
3332 --exclude=/conf.d
/main
/000_local-nn
/etc
/exim
4/ /etc
/myexim4
3333 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3334 # this makes it easier to see which exim is doing what
3335 log_file_path = /var/log/exim4/my%s
3340 cat >/etc
/logrotate.d
/myexim
<<'EOF'
3341 /var/log/exim4/mymain /var/log/exim4/myreject {
3349 /var/log/exim4/mypanic {
3360 # If we ever wanted to have a separate spool,
3361 # we could do it like this.
3362 # cat >>/etc/exim4/conf.d/main/000_local-nn <<'EOF'
3363 # spool_directory = /var/spool/myexim4
3365 cat >>/etc
/myexim
4/update-exim4.conf.conf
<<'EOF'
3366 dc_eximconfig_configtype='smarthost'
3367 dc_smarthost='nn.b8.nz'
3372 # config for the non-nn exim
3373 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3374 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail2.iankelling.org
3380 u
/etc
/myexim
4/conf.d
/router
/185_sentarchive
<<'EOF'
3383 domains = ! +local_domains
3384 senders = <; *@fsf.org ; *@posteo.net
3385 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3386 data = vojdedIdNejyebni@b8.nz
3390 u
/etc
/myexim
4/conf.d
/router
/160_backup_redir
<<'EOF'
3393 # i dont email myself from my own machine much, so lets ignore that.
3394 domains = ! +local_domains
3395 senders = <; *@fsf.org ; *@posteo.net
3396 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3397 # b is just an arbirary short string
3398 data = b@eximbackup.b8.nz
3399 # note, to test this, i could temporarily allow testignore.
3400 # alerts avoids potential mail loop.
3401 local_parts = ! root : ! testignore : ! alerts : ! daylert
3403 errors_to = alerts@iankelling.org
3406 # for bk, we have a exim4in.service that will do this for us.
3407 m update-exim4.conf
-d /etc
/myexim4
3413 # ** bind mount setup
3414 # put spool dir in directory that spans multiple distros.
3415 # based on http://www.postfix.org/qmgr.8.html and my notes in gnus
3418 sdir
=/var
/spool
/exim4
3419 # we only do this if our system has $dir
3421 # this used to do a symlink, but, in the boot logs, /nocow would get mounted succesfully,
3422 # about 2 seconds later, exim starts, and immediately puts into paniclog:
3423 # honVi-0000u3-82 Failed to create directory "/var/spool/exim4/input": No such file or directory
3424 # so, im trying a bind mount to get rid of that.
3425 if [[ -e /nocow
]]; then
3426 if ! grep -Fx "/nocow/exim4 /var/spool/exim4 none bind 0 0" /etc
/fstab
; then
3427 echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc
/fstab
3429 u
/etc
/systemd
/system
/exim4.service.d
/override.conf
<<'EOF'
3431 # without local-fs on exim, we get these kind of errors in paniclog on shutdown:
3432 # Failed to create spool file /var/spool/exim4//input//1jCLxz-0008V4-V9-D: Permission denied
3433 After=local-fs.target
3436 ExecStartPre=/usr/local/bin/exim-nn-iptables
3438 if ! mountpoint
-q $sdir; then
3439 stopifactive exim4 exim4in
3440 if [[ -L $sdir ]]; then
3443 if [[ ! -e $dir && -d $sdir ]]; then
3446 if [[ ! -d $sdir ]]; then
3448 m
chmod 000 $sdir # only want it to be used when its mounted
3456 # ** exim/spool uid setup
3457 # i have the spool directory be common to distro multi-boot, so
3458 # we need the uid to be the same. 608 cuz it's kind of in the middle
3459 # of the free system uids.
3460 IFS
=:; read -r _ _ uid _
< <(getent passwd Debian-exim ||
:) ||
:; unset IFS
3461 IFS
=:; read -r _ _ gid _
< <(getent group Debian-exim ||
:) ||
:; unset IFS
3462 if [[ ! $uid ]]; then
3463 # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options
3464 m adduser
--uid 608 --system --group --quiet --home /var
/spool
/exim4 \
3465 --no-create-home --disabled-login --force-badname Debian-exim
3466 elif [[ $uid != 608 ]]; then
3467 stopifactive exim4 exim4in
3468 m usermod
-u 608 Debian-exim
3469 m groupmod
-g 608 Debian-exim
3470 m usermod
-g 608 Debian-exim
3471 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -uid $uid -execdir chown
-h 608 {} +
3472 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -gid $gid -execdir chgrp
-h 608 {} +
3475 # * start / stop services
3477 reifactive dnsmasq nscd
3480 m systemctl daemon-reload
3483 # optimization, this only needs to run once.
3484 if [[ ! -e /sys
/class
/net
/wghole
]]; then
3485 # checking bhost_t is redundant, but could help us catch errors.
3486 if $bhost_t ||
[[ -e /etc
/wireguard
/wghole.conf
]]; then
3487 # todo: in mail-setup, we have a static list of backup hosts, not *y
3488 m systemctl
--now enable wg-quick@wghole
3492 # optimization, this only needs to be run once
3493 if [[ ! -e /var
/lib
/prometheus
/node-exporter
/exim_paniclog.prom
]]; then
3494 sysd-prom-fail-install epanicclean
3495 m systemctl
--now enable epanicclean
3500 /a
/exe
/web-conf apache2 je.b8.nz
3503 /a
/exe
/web-conf apache2 mail2.iankelling.org
3507 # optimization, this only needs to run once.
3508 if [[ ! -e /etc
/exim
4/fullchain.pem
]]; then
3509 m
/a
/bin
/ds
/mail-cert-cron
-1
3510 m systemctl
--now enable mailcert.timer
3515 m systemctl
--now enable mailnn mailnnroute
3518 # we use dns to start wg
3522 m systemctl
--now enable unbound
3526 # If these have changes, id rather manually restart it, id rather
3527 # not restart and cause temporary errors
3531 m systemctl
--now enable $vpnser
3533 if ! systemctl is-active clamav-daemon
>/dev
/null
; then
3534 m systemctl
--now enable clamav-daemon
3535 out
=$
(rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/filesystem
/etc
/systemd
/system
/epanicclean.service
/etc
/systemd
/system
)
3540 # note, this will cause paniclog entries because it takes like 45
3541 # seconds for clamav to start, i use ./epanic-clean to remove
3546 # start spamassassin/dovecot before exim.
3547 sre dovecot spamassassin
3548 # Wait a bit before restarting exim, else I get a paniclog entry
3549 # like: spam acl condition: all spamd servers failed. But I'm tired
3550 # of waiting. I'll deal with this some other way.
3553 m systemctl
--now enable mailclean.timer
3556 # < 2.1 (eg: in t9), uses a different data format which required manual
3557 # migration. dont start if we are running an old version.
3558 if dpkg
--compare-versions "$(dpkg -s radicale | awk '$1 == "Version
:" { print $2 }')" ge
2.1; then
3559 m systemctl
--now enable radicale
3564 # for debugging dns issues
3567 systemctl
enable --now logrotate-fast.timer
3571 # last use of $reload happens in previous block
3572 rm -f /var
/local
/mail-setup-reload
3576 $MAIL_HOST|bk|je|li
)
3577 # on li, these are never started, except $vpnser
3581 soff radicale mailclean.timer dovecot spamassassin
$vpnser mailnn clamav-daemon
3589 m systemctl
--now enable mailbindwatchdog
3592 soff mailbindwatchdog
3601 # * mail monitoring / testing
3603 # note, to test clamav, send an email with body that only contains
3604 # https://en.wikipedia.org/wiki/EICAR_test_file
3605 # which set malware_name to Eicar-Signature
3608 # note: cronjob "ian" also does some important monitoring
3609 # todo: this will sometimes cause an alert because mailtest-check will run
3610 # before we have setup network namespace and spamassassin
3611 u
/etc
/cron.d
/mailtest
<<EOF
3613 PATH=/usr/bin:/bin:/usr/local/bin
3614 MAILTO=daylert@iankelling.org
3615 */5 * * * * $u send-test-forward |& log-once send-test-forward
3616 */10 * * * * root chmod -R g+rw /m/md/bounces |& log-once -1 bounces-chmod
3617 # if a bounce happened yesterday, dont let it slip through the cracks
3618 8 1 * * * root export MAILTO=alerts@iankelling.org; [[ -s /var/log/exim4/mainlog.1 ]] && awk '\$5 == "**"' /var/log/exim4/mainlog.1
3622 m sudo rsync
-ahhi --chown=root
:root
--chmod=0755 \
3623 /b
/ds
/mailtest-check
/b
/ds
/check-remote-mailqs
/usr
/local
/bin
/
3624 u
/etc
/systemd
/system
/mailtest-check.service
<<'EOF'
3626 Description=mailtest-check
3627 After=local-fs.target
3628 StartLimitIntervalSec=0
3632 ExecStart=/usr/local/bin/mailtest-check slow
3637 WantedBy=graphical.target
3639 sysd-prom-fail-install mailtest-check
3643 test_froms
=(ian@iankelling.org z@zroe.org iank@gnu.org
)
3644 test_tos
=(testignore@expertpathologyreview.com testignore@je.b8.nz testignore@amnimal.ninja jtuttle@gnu.org
)
3646 cat >>/etc
/cron.d
/mailtest
<<EOF
3648 0 10 * * 5 root echo "weekly alert. You are not in the matrix."
3649 2 * * * * root check-remote-mailqs |& log-once check-remote-mailqs
3653 test_froms
=(testignore@amnimal.ninja testignore@expertpathologyreview.com
)
3654 test_tos
=(testignore@iankelling.org testignore@je.b8.nz
)
3655 # We dont need to send from different addresses to the same
3656 # address. this breaks down our nice elegant logic of building up
3657 # froms and tos , so I just handle expertpath in a special case
3658 # below and set the to: to be testignore@zroe.org. If we did sent
3659 # that way, it would also mess up our mailtest-check logic that
3660 # finds which messages to check.
3661 # for example: from testignore@amnimal.ninja to: testignore@iankelling.org testignore@zroe.org
3662 # that would become 2 messages and we'd only check 1.
3665 test_froms
=(testignore@je.b8.nz
)
3666 test_tos
=(testignore@iankelling.org testignore@zroe.org testignore@expertpathologyreview.com testignore@amnimal.ninja
)
3670 # Dont put these test messages into the sent folder or else it will
3671 # overwhelm it, plus i dont want to save a copy at all.
3672 # Plus addresses we generally want to ignore.
3673 u
/etc
/exim
4/ignore-sent
<<EOF
3674 $(printf "%s\n" ${test_tos[@]})
3675 vojdedIdNejyebni@b8.nz
3679 cat >/usr
/local
/bin
/send-test-forward
<<'EOF'
3681 # we remove from the queue older than 4.3 minutes since we send every 5 minutes.
3683 $(/usr/sbin/exiqgrep -o 260 -i -r '^(testignore@(iankelling\.org|zroe\.org|expertpathologyreview\.com|amnimal\.ninja|je\.b8\.nz)|jtuttle@gnu\.org)$')
3685 if (( ${#olds[@]} )); then
3686 /usr/sbin/exim -Mrm "${olds[@]}" >/dev/null
3689 for test_from
in ${test_froms[@]}; do
3691 test_to
=${test_tos[0]}
3692 for t
in ${test_tos[@]:1}; do
3693 if [[ $test_from == *@gnu.org
&& $t == *@gnu.org
]]; then
3699 testignore@expertpathologyreview.com
)
3700 test_to
=testignore@zroe.org
3704 cat >>/usr
/local
/bin
/send-test-forward
<<EOFOUTER
3705 /usr/sbin/exim -odf -f $test_from -t <<EOF
3708 Subject: test \$(date +%Y-%m-%dT%H:%M:%S%z) \$EPOCHSECONDS
3710 /usr/local/bin/send-test-forward
3714 m
chmod +x
/usr
/local
/bin
/send-test-forward
3717 soff mailtest-check.service
3718 rm -fv /etc
/cron.d
/mailtest \
3719 /var
/lib
/prometheus
/node-exporter
/mailtest-check.prom
* \
3720 /var
/local
/cron-errors
/check-remote-mailqs
*
3727 m sudo
-u $u mkdir
-p /home
/$u/.cache
3728 set -- /m
/mucache
/home
/$u/.cache
/mu
/m
/.mu
/home
/$u/.mu
3733 if [[ ! -L $f ]]; then
3734 if [[ -e $f ]]; then
3737 m sudo
-u $u ln -sf -T $target $f
3742 # /etc/alias setup is debian specific, and exim postinst script sets up
3743 # an /etc/alias from root to the postmaster, based on the question
3744 # exim4-config exim4/dc_postmaster, as long as there exists an entry for
3745 # root, or there was no preexisting aliases file. postfix won\'t set up
3746 # a root to $postmaster alias if it\'s already installed. Easiest to
3747 # just set it ourselves.
3749 # debconf question for postmaster:
3750 # Mail for the 'postmaster', 'root', and other system accounts needs to be redirected
3751 # to the user account of the actual system administrator.
3752 # If this value is left empty, such mail will be saved in /var/mail/mail, which is not
3754 # Note that postmaster\'s mail should be read on the system to which it is directed,
3755 # rather than being forwarded elsewhere, so (at least one of) the users listed here
3756 # should not redirect their mail off this machine. A 'real-' prefix can be used to
3757 # force local delivery.
3758 # Multiple user names need to be separated by spaces.
3759 # Root and postmaster mail recipient:
3765 # eval: (outline-minor-mode)
3766 # outline-regexp: "\\( *\\)# [*]\\{1,8\\} "
3768 # this is combined with defining outline-level in init.el