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
860 # /usr/share/doc/exim4-base/README.Debian.gz:
861 # SpamAssassin's default report should not be used in a add_header
862 # statement since it contains empty lines. (This triggers e.g. Amavis'
863 # warning "BAD HEADER SECTION, Improper folded header field made up
864 # entirely of whitespace".) This is a safe, terse alternative:
865 clear_report_template
866 report (_SCORE_ / _REQD_ requ) _TESTSSCORES(,)_ autolearn=_AUTOLEARN
867 uridnsbl_skip_domain iankelling.org
868 uridnsbl_skip_domain amnimal.ninja
869 uridnsbl_skip_domain expertpathologyreview.com
870 uridnsbl_skip_domain zroe.org
873 # 2020-10-19 remove old file. remove this when all hosts updated
874 rm -fv /etc
/systemd
/system
/spamddnsfix.
{timer
,service
}
876 u
/etc
/default
/spamassassin
<<'EOF'
877 # defaults plus debugging flags for an issue im having
878 OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
879 PIDFILE="/var/run/spamd.pid"
881 NICE="--nicelevel 15"
884 ##### end spamassassin config
890 ## needed only for openvpn mail vpn.
891 # if [[ -e /p/c/filesystem ]]; then
892 # # note, man openvpn implies we could just call mail-route on vpn startup/shutdown with
893 # # systemd, buuut it can remake the tun device unexpectedly, i got this in the log
894 # # after my internet was down for a bit:
895 # # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device.
896 # m /a/exe/vpn-mk-client-cert -b mailclient -n mail li.iankelling.org
899 # With openvpn, I didn't get around to persisting the openvpn
900 # cert/configs into /p/c/machine_specific/bk, so I had this case to
901 # manually get the cert. However, we aren't using openvpn anymore, so it
906 # if [[ ! -e /etc/openvpn/client/mail.conf ]]; then
907 # echo "$0: error: first, on a system with /p/c/filesystem, run mail-setup, or the vpn-mk-client-cert line above this err" 2>&2
913 m rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/mail-cert-cron
/usr
/local
/bin
915 u
/etc
/systemd
/system
/mailcert.service
<<'EOF'
917 Description=Mail cert rsync
918 After=multi-user.target
922 ExecStart=/usr/local/bin/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron
924 u
/etc
/systemd
/system
/mailcert.timer
<<'EOF'
926 Description=Run mail-cert once a day
932 WantedBy=timers.target
936 wghost
=${HOSTNAME}wg.b8.nz
937 if $bhost_t && [[ ! -e /etc
/exim
4/certs
/$wghost/privkey.pem
]]; then
938 certbot
-n --manual-public-ip-logging-ok --eff-email --agree-tos -m letsencrypt@iankelling.org \
939 certonly
--manual --preferred-challenges=dns \
940 --manual-auth-hook /a
/bin
/ds
/le-dns-challenge \
941 --manual-cleanup-hook /a
/bin
/ds
/le-dns-challenge-cleanup \
942 --deploy-hook /a
/bin
/ds
/le-exim-deploy
-d $wghost
947 # todo: test that these configs actually work, eg run
949 # and see someone is banned.
951 sed 's/^ *before *= *iptables-common.conf/before = iptables-common-exim.conf/' \
952 /etc
/fail2ban
/action.d
/iptables-multiport.conf| u
/etc
/fail2ban
/action.d
/iptables-exim.conf
953 u
/etc
/fail2ban
/action.d
/iptables-common-exim.conf
<<'EOF'
954 # iank: same as iptables-common, except iptables is iptables-exim, ip6tables is ip6tables-exim
956 # Fail2Ban configuration file
958 # Author: Daniel Black
960 # This is a included configuration file and includes the definitions for the iptables
961 # used in all iptables based actions by default.
963 # The user can override the defaults in iptables-common.local
965 # Modified: Alexander Koeppe <format_c@online.de>, Serg G. Brester <serg.brester@sebres.de>
966 # made config file IPv6 capable (see new section Init?family=inet6)
970 after = iptables-blocktype.local
971 iptables-common.local
972 # iptables-blocktype.local is obsolete
976 # Option: actionflush
977 # Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
980 actionflush = <iptables> -F f2b-<name>
986 # Notes specifies the iptables chain to which the Fail2Ban rules should be
988 # Values: STRING Default: INPUT
991 # Default name of the chain
996 # Notes.: specifies port to monitor
997 # Values: [ NUM | STRING ] Default:
1002 # Notes.: internally used by config reader for interpolations.
1003 # Values: [ tcp | udp | icmp | all ] Default: tcp
1008 # Note: This is what the action does with rules. This can be any jump target
1009 # as per the iptables man page (section 8). Common values are DROP
1010 # REJECT, REJECT --reject-with icmp-port-unreachable
1012 blocktype = REJECT --reject-with icmp-port-unreachable
1014 # Option: returntype
1015 # Note: This is the default rule on "actionstart". This should be RETURN
1016 # in all (blocking) actions, except REJECT in allowing actions.
1020 # Option: lockingopt
1021 # Notes.: Option was introduced to iptables to prevent multiple instances from
1022 # running concurrently and causing irratic behavior. -w was introduced
1023 # in iptables 1.4.20, so might be absent on older systems
1024 # See https://github.com/fail2ban/fail2ban/issues/1122
1029 # Notes.: Actual command to be executed, including common to all calls options
1031 iptables = /usr/local/bin/iptables-exim <lockingopt>
1036 # Option: blocktype (ipv6)
1037 # Note: This is what the action does with rules. This can be any jump target
1038 # as per the iptables man page (section 8). Common values are DROP
1039 # REJECT, REJECT --reject-with icmp6-port-unreachable
1041 blocktype = REJECT --reject-with icmp6-port-unreachable
1043 # Option: iptables (ipv6)
1044 # Notes.: Actual command to be executed, including common to all calls options
1046 iptables = /usr/local/bin/ip6tables-exim <lockingopt>
1049 u
/etc
/fail2ban
/jail.d
/exim.
local <<'EOF'
1054 banaction = iptables-exim
1056 # 209.51.188.13 = mail.fsf.org
1057 # 2001:470:142::13 = mail.fsf.org
1058 # 209.51.188.92 = eggs.gnu.org
1059 # 2001:470:142:3::10 = eggs.gnu.org
1060 # 72.14.176.105 2600:3c00:e000:280::2 = mail.iankelling.org
1061 # 10.173.8.1 = non-nn net
1062 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
1065 m systemctl restart fail2ban
1068 # * common exim4 config
1071 ## old, not using forward files anymore
1072 rm -fv $uhome/.forward
/root
/.forward
1075 # Make all system users be aliases. preventative
1076 # prevents things like cron mail for user without alias
1077 awk 'BEGIN { FS = ":" } ; $6 !~ /^\/home/ || $7 ~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1078 if [[ ! $user ]]; then
1081 if ! grep -q "^$user:" /etc
/aliases
; then
1082 echo "$user: root" |m
tee -a /etc
/aliases
1087 awk 'BEGIN { FS = ":" } ; $6 ~ /^\/home/ && $7 !~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1090 sed -i "/^user:/d" /etc
/aliases
1093 if ! grep -q "^$user:" /etc
/aliases
; then
1094 echo "$user: root" |m
tee -a /etc
/aliases
1101 .
/a
/bin
/bash_unpublished
/priv-mail-setup
1104 m gpasswd
-a iank adm
#needed for reading logs
1106 ### make local bounces go to normal maildir
1107 # local mail that bounces goes to /Maildir or /root/Maildir
1108 dirs=(/m
/md
/bounces
/{cur
,tmp
,new
})
1109 m mkdir
-p ${dirs[@]}
1110 m chown iank
:iank
/m
/m
/md
1111 m
ln -sfT /m
/md
/m
/iank
1112 m
chmod 771 /m
/m
/md
1113 m chown
-R $u:Debian-exim
/m
/md
/bounces
1114 m
chmod 775 ${dirs[@]}
1115 m usermod
-a -G Debian-exim
$u
1116 for d
in /Maildir
/root
/Maildir
; do
1117 if [[ ! -L $d ]]; then
1120 m
ln -sf -T /m
/md
/bounces
$d
1123 # dkim, client passwd file
1124 files
=(/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/exim
4/*)
1125 f
=/p
/c
/filesystem
/etc
/exim
4/passwd.client
1126 if [[ -e $f ]]; then
1129 if (( ${#files[@]} )); then
1130 m rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 \
1131 ${files[@]} /etc
/exim4
1134 # By default, only 10 days of logs are kept. increase that.
1135 # And dont compress, I look back at logs too often and
1136 # dont need the annoyance of decompressing them all the time.
1137 m
sed -ri '/^\s*compress\s*$/d;s/^(\s*rotate\s).*/\11000/' /etc
/logrotate.d
/exim4-base
1138 files
=(/var
/log
/exim
4/*.gz
)
1139 if (( ${#files[@]} )); then
1143 ## disabled. not using .forward files, but this is still interesting
1145 # ## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost
1146 # # i only need .forwards, so just doing that one.
1147 # cd /etc/exim4/conf.d/router
1148 # b=userforward_higher_priority
1149 # # replace the router name so it is unique
1150 # sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b
1151 rm -fv /etc
/exim
4/conf.d
/router
/175_userforward_higher_priority
1153 # todo, consider 'separate' in etc/exim4.conf, could it help on busy systems?
1155 # alerts is basically the postmaster address
1156 m
sed -i --follow-symlinks -f - /etc
/aliases
<<EOF
1157 \$a root: alerts@iankelling.org
1161 cat >/etc
/exim
4/conf.d
/rewrite
/34_iank_rewriting
<<'EOF'
1162 ncsoft@zroe.org graceq2323@gmail.com hE
1166 rm -fv /etc
/exim
4/conf.d
/retry
/37_retry
1168 cat >/etc
/exim
4/conf.d
/retry
/17_retry
<<'EOF'
1169 # Retry fast for my own domains
1170 iankelling.org * F,1d,1m;F,14d,1h
1171 amnimal.ninja * F,1d,1m;F,14d,1h
1172 expertpathologyreview.com * F,1d,1m;F,14d,1h
1173 je.b8.nz * F,1d,1m;F,14d,1h
1174 zroe.org * F,1d,1m;F,14d,1h
1175 eximbackup.b8.nz * F,1d,1m;F,14d,1h
1177 # The spec says the target domain will be used for temporary host errors,
1178 # but i've found that isn't correct, the hostname is required
1179 # at least sometimes.
1180 nn.b8.nz * F,1d,1m;F,14d,1h
1181 defaultnn.b8.nz * F,1d,1m;F,14d,1h
1182 mx.iankelling.org * F,1d,1m;F,14d,1h
1183 bk.b8.nz * F,1d,1m;F,14d,1h
1184 eggs.gnu.org * F,1d,1m;F,14d,1h
1185 fencepost.gnu.org * F,1d,1m;F,14d,1h
1187 # afaik our retry doesnt need this, but just using everything
1188 mx.amnimal.ninja * F,1d,1m;F,14d,1h
1189 mx.expertpathologyreview.com * F,1d,1m;F,14d,1h
1192 mail.fsf.org * F,1d,15m;F,14d,1h
1196 rm -vf /etc
/exim
4/conf.d
/main
/000_localmacros
# old filename
1198 # separate file so without quoted EOF for convenience
1199 cat >/etc
/exim
4/conf.d
/main
/000_local2
<<EOF
1200 # normally empty, I set this so I can set the envelope address
1201 # when doing mail redelivery to invoke filters. Also allows
1202 # me exiqgrep and stuff.
1203 MAIN_TRUSTED_GROUPS = $u
1208 for f
in *-private.pem
; do
1209 echo ${f%-private.pem}
1211 } | u
/etc
/exim
4/conf.d
/my-dkim-domains
1213 rm -f /etc
/exim
4/conf.d
/transport
/11_iank
1215 cat >/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1216 MAIN_TLS_ENABLE = true
1218 # require tls connections for all smarthosts
1219 REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS = ! nn.b8.nz
1220 REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS = nn.b8.nz
1222 # debian exim config added this in 2016 or so?
1223 # it's part of the smtp spec, to limit lines to 998 chars
1224 # but a fair amount of legit mail does not adhere to it. I don't think
1225 # this should be default, like it says in
1226 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=828801
1227 # todo: the bug for introducing this was about headers, but
1228 # the fix maybe is for all lines? one says gmail rejects, the
1229 # other says gmail does not reject. figure out and open a new bug.
1230 IGNORE_SMTP_LINE_LENGTH_LIMIT = true
1232 # more verbose logs. used to use +all, but made it less for more efficiency.
1233 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
1235 # Based on spec, seems like a good idea to be nice.
1236 smtp_return_error_details = true
1238 # default is 10. when exim has been down for a bit, fsf mailserver
1239 # will do a big send in one connection, then exim decides to put
1240 # the messages in the queue instead of delivering them, to avoid
1241 # spawning too many delivery processes. This is the same as the
1242 # fsfs value. And the corresponding one for how many messages
1243 # to send out in 1 connection remote_max_parallel = 256
1244 smtp_accept_queue_per_connection = 500
1247 DKIM_CANON = relaxed
1251 # The file is based on the outgoing domain-name in the from-header.
1252 # sign if key exists
1253 DKIM_PRIVATE_KEY = ${if exists{/etc/exim4/${dkim_domain}-private.pem} {/etc/exim4/${dkim_domain}-private.pem}}
1255 # most of the ones that gmail seems to use.
1256 # Exim has horrible default of signing unincluded
1257 # list- headers since they got mentioned in an
1258 # rfc, but this messes up mailing lists, like gnu/debian which want to
1259 # keep your dkim signature intact but add list- headers.
1260 DKIM_SIGN_HEADERS = mime-version:in-reply-to:references:from:date:subject:to
1262 domainlist local_hostnames = ! je.b8.nz : ! bk.b8.nz : *.b8.nz : b8.nz
1264 hostlist iank_trusted = <; \
1268 72.14.176.105 ; 2600:3c00::f03c:91ff:fe6d:baf8 ; \
1269 # li_vpn_net li_vpn_net_ip6s
1270 10.8.0.0/24; 2600:3c00:e000:280::/64 ; 2600:3c00:e002:3800::/56 ; \
1272 85.119.83.50 ; 2001:ba8:1f1:f0c9::2 ; \
1274 85.119.82.128 ; 2001:ba8:1f1:f09d::2 ; \
1275 # fsf_mit_net fsf_mit_net_ip6 fsf_net fsf_net_ip6 fsf_office_net
1276 18.4.89.0/24 ; 2603:3005:71a:2e00::/64 ; 209.51.188.0/24 ; 2001:470:142::/48 ; 74.94.156.208/28
1279 # this is the default delay_warning_condition, plus matching on local_domains.
1280 # If I have some problem with my local system that causes delayed delivery,
1281 # I dont want to send warnings out to non-local domains.
1282 delay_warning_condition = ${if or {\
1283 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }\
1284 { match{$h_precedence:}{(?i)bulk|list|junk} }\
1285 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }\
1286 { match_domain{$domain}{+local_domains} }\
1290 # enable 587 in addition to the default 25, so that
1291 # i can send mail where port 25 is firewalled by isp
1292 daemon_smtp_ports = 25 : 587 : 10025
1293 # default of 25, can get stuck when catching up on mail
1294 smtp_accept_max = 400
1295 smtp_accept_reserve = 100
1296 smtp_reserve_hosts = +iank_trusted
1298 # Rules that make receiving more liberal should be on backup hosts
1299 # so that we dont reject mail accepted by MAIL_HOST
1300 LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE = /etc/exim4/conf.d/local_deny_exceptions_acl
1303 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show exim4)" ge
4.94; then
1304 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1305 # In t11, we cant do the old anymore because this is tainted data used in a file lookup.
1306 # /usr/share/doc/exim4/NEWS.Debian.gz suggests to use lookups to untaint data.
1307 DKIM_DOMAIN = ${lookup {${domain:$rh_from:}}lsearch,ret=key{/etc/exim4/conf.d/my-dkim-domains}}
1310 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1312 # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
1313 # and its best for this to align https://tools.ietf.org/html/rfc7489#page-8
1314 # There could be some circumstance when the
1315 # from: isnt our domain, but the envelope sender is
1316 # and so still want to sign, but I cant think of any case.
1317 DKIM_DOMAIN = ${lc:${domain:$rh_from:}}
1321 rm -fv /etc
/exim
4/rcpt_local_acl
# old path
1323 u
/etc
/exim
4/conf.d
/local_deny_exceptions_acl
<<'EOF'
1324 # This acl already exists in rcpt, this just makes it more widespread.
1325 # See the comment there for its rationale. The reason it needs to be
1326 # more widespread is that I've turned on sender verification, but cron
1327 # emails can fail sender verification since I may be in a network that
1328 # doesn't have my local dns.
1332 # i setup a local programs smtp to mail.iankelling.org, this
1333 # skips sender verification for it.
1338 rm -fv /etc
/exim
4/data_local_acl
# old path
1340 u
/etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
1341 # Except for the "condition =", this was
1342 # a comment in the check_data acl. The comment about this not
1343 # being suitable has been changed in newer exim versions. The only thing
1344 # related I found was to
1345 # add the condition =, cuz spamassassin has problems with big
1346 # messages and spammers don't bother with big messages,
1347 # but I've increased the size from 10k
1348 # suggested in official docs, and 100k in the wiki example because
1349 # those docs are rather old and I see a 110k spam message
1350 # pretty quickly looking through my spam folder.
1353 !hosts = +iank_trusted
1354 remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : X-Spam_report
1357 !hosts = +iank_trusted
1358 # Smarthosts connect with residential ips and thus get flagged as spam if we do a spam check.
1359 !authenticated = plain_server:login_server
1360 condition = ${if < {$message_size}{5000K}}
1361 spam = Debian-exim:true
1362 add_header = X-Spam_score_int: $spam_score_int
1363 add_header = X-Spam_score: $spam_score
1364 add_header = X-Spam_bar: $spam_bar
1365 add_header = X-Spam_report: $spam_report
1366 add_header = X-Spam_action: $spam_action
1370 # spf = pass:fail:softfail:none:neutral:permerror:temperror
1371 # dmarc_status = reject:quarantine
1372 # add_header = Reply-to: dmarctest@iankelling.org
1378 rm -fv /etc
/exim
4/conf.d
/router
/8{8,9}0_backup_copy \
1379 /etc
/exim
4/conf.d
/router
/865_backup_redir \
1380 /etc
/exim
4/conf.d
/router
/870_backup_local
1382 # It is important for this to exist everywhere except in MAIL_HOST
1383 # non-nn config. Previously, just had it in the nn-config on MAIL_HOST,
1384 # but that is a problem if we change mail host and still have something
1385 # in the queue which was destined for this router, but hosts were
1386 # unreachable, the routers will be reevaluated on the next retry.
1387 u
/etc
/exim
4/conf.d
/router
/170_backup_copy
<<EOF
1388 ### router/900_exim4-config_local_user
1389 #################################
1392 driver = manualroute
1393 domains = eximbackup.b8.nz
1394 transport = backup_remote
1395 ignore_target_hosts = ${HOSTNAME}wg.b8.nz
1396 # note changes here also require change in passwd.client
1397 route_list = * eximbackup.b8.nz
1398 same_domain_copy_routing = yes
1399 errors_to = alerts@iankelling.org
1404 # exim4-config transports are the same as default except for
1405 # message_linelength_limit = 2097152
1407 # TODO: copy the defaults into their own file, and setup a cronjob so
1408 # that if file.dpkg-dist shows up, and it is different, we get an alert.
1410 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp_smarthost
<<'EOF'
1411 ### transport/30_exim4-config_remote_smtp_smarthost
1412 #################################
1414 # This transport is used for delivering messages over SMTP connections
1415 # to a smarthost. The local host tries to authenticate.
1416 # This transport is used for smarthost and satellite configurations.
1418 remote_smtp_smarthost:
1419 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1421 message_linelength_limit = 2097152
1423 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1425 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1429 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1430 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1432 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1433 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1435 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1436 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1438 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1439 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1441 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1442 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1444 .ifdef REMOTE_SMTP_RETURN_PATH
1445 return_path = REMOTE_SMTP_RETURN_PATH
1447 .ifdef REMOTE_SMTP_HELO_DATA
1448 helo_data=REMOTE_SMTP_HELO_DATA
1450 .ifdef TLS_DH_MIN_BITS
1451 tls_dh_min_bits = TLS_DH_MIN_BITS
1453 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1454 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1456 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1457 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1459 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1460 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1462 .ifdef REMOTE_SMTP_SMARTHOST_PROTOCOL
1463 protocol = REMOTE_SMTP_SMARTHOST_PROTOCOL
1467 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp
<<'EOF'
1468 ### transport/30_exim4-config_remote_smtp
1469 #################################
1470 # This transport is used for delivering messages over SMTP connections.
1473 debug_print = "T: remote_smtp for $local_part@$domain"
1475 message_linelength_limit = 2097152
1476 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1477 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1479 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1480 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1482 .ifdef REMOTE_SMTP_RETURN_PATH
1483 return_path = REMOTE_SMTP_RETURN_PATH
1485 .ifdef REMOTE_SMTP_HELO_DATA
1486 helo_data=REMOTE_SMTP_HELO_DATA
1488 .ifdef REMOTE_SMTP_INTERFACE
1489 interface = REMOTE_SMTP_INTERFACE
1492 dkim_domain = DKIM_DOMAIN
1494 .ifdef DKIM_IDENTITY
1495 dkim_identity = DKIM_IDENTITY
1497 .ifdef DKIM_SELECTOR
1498 dkim_selector = DKIM_SELECTOR
1500 .ifdef DKIM_PRIVATE_KEY
1501 dkim_private_key = DKIM_PRIVATE_KEY
1504 dkim_canon = DKIM_CANON
1507 dkim_strict = DKIM_STRICT
1509 .ifdef DKIM_SIGN_HEADERS
1510 dkim_sign_headers = DKIM_SIGN_HEADERS
1512 .ifdef DKIM_TIMESTAMPS
1513 dkim_timestamps = DKIM_TIMESTAMPS
1515 .ifdef TLS_DH_MIN_BITS
1516 tls_dh_min_bits = TLS_DH_MIN_BITS
1518 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1519 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1521 .ifdef REMOTE_SMTP_PRIVATEKEY
1522 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1524 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1525 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1527 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1528 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1533 u
/etc
/exim
4/conf.d
/transport
/30_backup_remote
<<'EOF'
1537 message_linelength_limit = 2097152
1538 hosts_require_auth = *
1541 # manual return path because we want it to be the envelope sender
1542 # we got not the one we are using in this smtp transport
1543 headers_add = "Return-path: $sender_address"
1544 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1545 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1547 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1548 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1550 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1551 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1553 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1554 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1556 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1557 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1559 .ifdef REMOTE_SMTP_HELO_DATA
1560 helo_data=REMOTE_SMTP_HELO_DATA
1562 .ifdef TLS_DH_MIN_BITS
1563 tls_dh_min_bits = TLS_DH_MIN_BITS
1565 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1566 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1568 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1569 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1571 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1572 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1576 u
/etc
/exim
4/conf.d
/router
/900_exim4-config_local_user
<<'EOF'
1577 ### router/900_exim4-config_local_user
1578 #################################
1580 # This router matches local user mailboxes. If the router fails, the error
1581 # message is "Unknown user".
1583 debug_print = "R: local_user for $local_part@$domain"
1585 domains = +local_domains
1586 # ian: default file except where mentioned.
1587 # ian: commented this. I get all local parts. for bk, an rcpt
1588 # check handles checking with dovecot, and the only router
1589 # after this is root.
1590 # local_parts = ! root
1591 transport = LOCAL_DELIVERY
1592 cannot_route_message = Unknown user
1593 # ian: added for + addressing.
1594 local_part_suffix = +*
1595 local_part_suffix_optional
1597 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_dovecot_lmtp
<<'EOF'
1600 socket = /var/run/dovecot/lmtp
1601 #maximum number of deliveries per batch, default 1
1606 u
/etc
/exim
4/conf.d
/transport
/30_remote_smtp_vpn
<<'EOF'
1607 # same as debians 30_exim4-config_remote_smtp, but
1608 # with interface added at the end.
1611 debug_print = "T: remote_smtp_vpn for $local_part@$domain"
1613 message_linelength_limit = 2097152
1614 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1615 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1617 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1618 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1620 .ifdef REMOTE_SMTP_RETURN_PATH
1621 return_path = REMOTE_SMTP_RETURN_PATH
1623 .ifdef REMOTE_SMTP_HELO_DATA
1624 helo_data=REMOTE_SMTP_HELO_DATA
1627 dkim_domain = DKIM_DOMAIN
1629 .ifdef DKIM_SELECTOR
1630 dkim_selector = DKIM_SELECTOR
1632 .ifdef DKIM_PRIVATE_KEY
1633 dkim_private_key = DKIM_PRIVATE_KEY
1636 dkim_canon = DKIM_CANON
1639 dkim_strict = DKIM_STRICT
1641 .ifdef DKIM_SIGN_HEADERS
1642 dkim_sign_headers = DKIM_SIGN_HEADERS
1644 .ifdef TLS_DH_MIN_BITS
1645 tls_dh_min_bits = TLS_DH_MIN_BITS
1647 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1648 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1650 .ifdef REMOTE_SMTP_PRIVATEKEY
1651 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1653 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1654 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1656 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1657 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1659 interface = <; 10.8.0.4 ; 2600:3c00:e002:3800::4
1662 u
/etc
/exim
4/conf.d
/transport
/30_smarthost_dkim
<<'EOF'
1663 # ian: this is remote_smtp_smarthost plus the dkim parts from remote_smtp
1666 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1668 message_linelength_limit = 2097152
1670 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1672 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1676 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1677 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1679 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1680 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1682 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1683 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1685 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1686 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1688 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1689 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1691 .ifdef REMOTE_SMTP_RETURN_PATH
1692 return_path = REMOTE_SMTP_RETURN_PATH
1694 .ifdef REMOTE_SMTP_HELO_DATA
1695 helo_data=REMOTE_SMTP_HELO_DATA
1697 .ifdef TLS_DH_MIN_BITS
1698 tls_dh_min_bits = TLS_DH_MIN_BITS
1700 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1701 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1703 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1704 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1706 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1707 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1710 dkim_domain = DKIM_DOMAIN
1712 .ifdef DKIM_SELECTOR
1713 dkim_selector = DKIM_SELECTOR
1715 .ifdef DKIM_PRIVATE_KEY
1716 dkim_private_key = DKIM_PRIVATE_KEY
1719 dkim_canon = DKIM_CANON
1722 dkim_strict = DKIM_STRICT
1724 .ifdef DKIM_SIGN_HEADERS
1725 dkim_sign_headers = DKIM_SIGN_HEADERS
1730 cat >/etc
/exim
4/update-exim4.conf.conf
<<'EOF'
1731 # default stuff, i havent checked if its needed
1732 dc_minimaldns='false'
1734 dc_use_split_config='true'
1735 dc_mailname_in_oh='true'
1741 if ! mountpoint
/o
; then
1742 echo "error /o is not a mountpoint" >&2
1746 # davx/davdroid setup instructions at the bottom
1749 # http://radicale.org/user_documentation/
1750 # https://davdroid.bitfire.at/configuration/
1752 # note on debugging: if radicale can't bind to the address,
1753 # in the log it just says "Starting Radicale". If you run
1754 # it in the foreground, it will give more info. Background
1755 # plus debug does not help.
1756 # sudo -u radicale radicale -D
1758 # created password file with:
1759 # htpasswd -c /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1760 # chmod 640 /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1761 # # setup chgrp www-data in ./conflink
1764 m usermod
-a -G radicale iank
1766 u
/etc
/systemd
/system
/radicale.service.d
/override.conf
<<EOF
1769 After=network.target network-online.target mailnn.service $vpnser
1772 JoinsNamespaceOf=mailnn.service
1773 StartLimitIntervalSec=0
1777 BindPaths=$bindpaths
1779 # time to sleep before restarting a service
1788 # use persistent uid/gid
1789 IFS
=:; read -r _ _ uid _
< <(getent passwd radicale
); unset IFS
1790 IFS
=:; read -r _ _ gid _
< <(getent group radicale
); unset IFS
1791 if [[ $uid != 609 ]]; then
1792 m systemctl stop radicale ||
:
1793 m usermod
-u 609 radicale
1794 m groupmod
-g 609 radicale
1795 m usermod
-g 609 radicale
1797 m
find /o
/radicale
-xdev -exec chown
-h 609 {} +
1798 m
find /o
/radicale
-xdev -exec chgrp
-h 609 {} +
1801 # I moved /var/lib/radicale after it's initialization.
1802 # I did a sudo -u radicale git init in the collections subfolder
1803 # after it gets created, per the git docs.
1804 m
/a
/exe
/lnf
-T /o
/radicale
/var
/lib
/radicale
1806 # from https://www.williamjbowman.com/blog/2015/07/24/setting-up-webdav-caldav-and-carddav-servers/
1808 # more config is for li in distro-end
1810 # coment in this file says this is needed for it to run on startup
1811 sed -ri 's/^\s*#+\s*(ENABLE_RADICALE\s*=\s*yes\s*)/\1/' /etc
/default
/radicale
1813 # comments say default is 0.0.0.0:5232
1814 m setini hosts
10.8.0.4:5232 server
1815 # https://radicale.org/2.1.html
1816 m setini
type http_x_remote_user auth
1819 # disable power management feature, set to 240 min sync interval,
1820 # so it shouldn't be bad.
1822 # davx^5 from f-droid
1823 # login with url and user name
1824 # url https://cal.iankelling.org/ian
1826 # pass, see password manager for radicale
1828 # add account dialog:
1830 # set account name as ian@iankelling.org, per help text below the
1833 # switch to groups are per-contact categories,
1834 # per https://davdroid.bitfire.at/configuration/radicale/
1837 # After setting up account, I added one address book, named
1838 # ianaddr. calender was already created, named ian. checked boxes under
1841 # To restore from old phone to new phone, I wiped all data out, then copied over the newly created files. I think
1843 # ignorable background info:
1845 # opentasks uses the calendar file.
1847 # The address book I created got a uuid as a name for the file. Note
1848 # the .props file says if it's a calendar or addressbook.
1850 # When debugging, tailed /var/log/radicale/radicale.log and apache log,
1851 # both show the requests happening. Without creating the address book,
1852 # after creating a contact, a sync would delete it.
1854 # Address books correspond to .props files in the radicale dir.
1856 # Some background is here,
1857 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1858 # which shows separate vcard option is from rfc 6350, the other is 2426,
1859 # radicale page says it implements the former not the latter,
1860 # which conflicts with the documentation of which to select, but whatever.
1861 # http://radicale.org/technical_choices/
1862 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1864 # Note, url above says only cayanogenmod 13+ and omnirom can manage groups.
1866 # Note, radicale had built-in git support to track changes, but they
1867 # removed it in 2.0.
1873 # ** $MAIL_HOST|bk|je)
1876 # based on a little google and package search, just the dovecot
1877 # packages we need instead of dovecot-common.
1879 # dovecot-lmtpd is for exim to deliver to dovecot instead of maildir
1880 # directly. The reason to do this is to use dovecot\'s sieve, which
1881 # can generally do more than exims filters (a few things less) and
1882 # sieve has the benefit of being supported in postfix and
1883 # proprietary/weird environments, so there is more examples on the
1885 pi-nostart dovecot-core dovecot-imapd dovecot-sieve dovecot-lmtpd dovecot-sqlite sqlite3
1887 for f
in /p
/c
{/machine_specific
/$HOSTNAME,}/filesystem
/etc
/dovecot
/users
; do
1888 if [[ -e $f ]]; then
1889 m rsync
-ahhi --chown=root
:dovecot
--chmod=0640 $f /etc
/dovecot
/
1893 for f
in /p
/c
/subdir_files
/sieve
/*sieve
/a
/bin
/ds
/subdir_files
/sieve
/*sieve
; do
1894 m sudo
-u $u /a
/exe
/lnf
-v -T $f $uhome/sieve
/${f##*/}
1897 # https://wiki.dovecot.org/SSL/DovecotConfiguration
1898 u
/etc
/dovecot
/dhparam
<<'EOF'
1899 -----BEGIN DH PARAMETERS-----
1900 MIIBCAKCAQEAoleil6SBxGqQKk7j0y2vV3Oklv6XupZKn7PkPv485QuFeFagifeS
1901 A+Jz6Wquqk5zhGyCu63Hp4wzGs4TyQqoLjkaWL6Ra/Bw3g3ofPEzMGEsV1Qdqde4
1902 jorwiwtr2i9E6TXQp0noT/7VFeHulIkayTeW8JulINdMHs+oLylv16McGCIrxbkM
1903 8D1PuO0TP/CNDs2QbRvJ1RjY3CeGpxMhrSHVgBCUMwnA2cvz3bYjI7UMYMMDPNrE
1904 PLrwsYzXGGCdJsO2vsmmqqgLsZiapYJlUNjfiyWLt7E2H6WzkNB3VIhIPfLqFDPK
1905 xioE3sYKdjOt+p6mlg3l8+OLtODEFPHDqwIBAg==
1906 -----END DH PARAMETERS-----
1910 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
1912 ssl_cert = </etc/exim4/fullchain.pem
1913 ssl_key = </etc/exim4/privkey.pem
1916 # We have a lets encrypt hooks that puts things here.
1917 # This is just for bk, which uses the vpn cert in exim
1918 # for sending mail, but the local hostname cert for
1921 ssl_cert = </etc/exim4/exim.crt
1922 ssl_key = </etc/exim4/exim.key
1927 # https://ssl-config.mozilla.org
1929 # this is the same as the certbot list, i check changes in /a/bin/ds/filesystem/usr/local/bin/check-lets-encrypt-ssl-settings
1930 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
1931 ssl_protocols = TLSv1.2
1932 ssl_prefer_server_ciphers = no
1935 #per https://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
1936 # default is just $mail_plugins
1937 mail_plugins = $mail_plugins sieve
1940 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show dovecot-core)" ge
1:2.3; then
1942 ssl_dh = </etc/dovecot/dhparam
1945 } >/etc
/dovecot
/local.conf
1951 # If we changed 90-sieve.conf and removed the active part of the
1952 # sieve option, we wouldn\'t need this, but I\'d rather not modify a
1953 # default config if not needed. This won\'t work as a symlink in /a/c
1955 m sudo
-u $u /a
/exe
/lnf
-T sieve
/main.sieve
$uhome/.dovecot.sieve
1957 if [[ ! -e $uhome/sieve
/personal.sieve
]]; then
1958 m
touch $uhome/sieve
/personal
{,end
}{,test}.sieve
1961 rm -fv /etc
/dovecot
/conf.d
/20-lmtp.conf
# file from prev version
1962 cat >>/etc
/dovecot
/local.conf
<<EOF
1963 # simple password file based login
1964 !include conf.d/auth-passwdfile.conf.ext
1966 # ian: %u is used for alerts user vs iank
1967 mail_location = maildir:/m/%u:LAYOUT=fs:INBOX=/m/%u/INBOX
1972 # For a normal setup with exim, we need something like this, which
1973 # removes the domain part
1974 # auth_username_format = %Ln
1976 # or else # Exim says something like
1977 # "LMTP error after RCPT ... 550 ... User doesn't exist someuser@somedomain"
1978 # Dovecot verbose log says something like
1979 # "auth-worker(9048): passwd(someuser@somedomain): unknown user"
1980 # reference: http://wiki.dovecot.org/LMTP/Exim
1982 # However, I use this to direct all mail to the same inbox.
1983 # A normal way to do this, which I did at first is to have
1984 # a router in exim almost at the end, eg 950,
1986 # debug_print = "R: catchall for \$local_part@\$domain"
1988 # domains = +local_domains
1991 # http://blog.alteholz.eu/2015/04/exim4-and-catchall-email-address/
1992 # with superflous options removed.
1993 # However, this causes the envelope to be rewritten,
1994 # which makes filtering into mailboxes a little less robust or more complicated,
1995 # so I've done it this way instead. it also requires
1996 # modifying the local router in exim.
1997 auth_username_format = $u
2003 chown
-R mail.
mail /m
/md
2005 f
=/etc
/dovecot
/conf.d
/10-auth.conf
2006 if [[ -e $f ]]; then
2007 mv $f $f-iank-disabled
2010 cat >>/etc
/dovecot
/local.conf
<<EOF
2011 !include /etc/dovecot/local.conf.ext
2013 # for debugging info, uncomment these.
2014 # logs go to syslog and to /var/log/mail.log
2020 # This downcases the localpart. default is case sensitive.
2021 # case sensitive local part will miss out on valid email when some person or system
2022 # mistakenly capitalizes things.
2023 auth_username_format = %Lu
2026 # make 147 only listen on localhost, plan to use for nextcloud.
2027 # copied from mailinabox
2028 service imap-login {
2029 inet_listener imap {
2033 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_dovecot_authenticator.html
2035 unix_listener auth-client {
2043 sieve_before = /etc/dovecot/sieve-spam.sieve
2045 sieve = /m/sieve/%d/%n.sieve
2046 sieve_dir = /m/sieve/%d/%n
2050 # all taken from mailinabox.
2051 mail_location = maildir:/m/md/%d/%n
2053 mail_privileged_group = mail
2054 # By default Dovecot allows users to log in only with UID numbers 500 and above. mail is 8
2057 # todo: test these changes in the universal config
2058 # mailboxes taken from mailinabox but removed
2059 # settings duplicate to defaults
2078 special_use = \Archive
2082 auth_mechanisms = plain login
2085 u
/etc
/dovecot
/sieve-spam.sieve
<<'EOF'
2086 require ["regex", "fileinto", "imap4flags"];
2088 if allof (header :regex "X-Spam-Status" "^Yes") {
2094 u
/etc
/dovecot
/local.conf.ext
<<'EOF'
2097 args = /etc/dovecot/dovecot-sql.conf.ext
2101 args = /etc/dovecot/dovecot-sql.conf.ext
2106 u
/etc
/dovecot
/dovecot-sql.conf.ext
<<'EOF'
2109 # for je and bk, populated the testignore users for the relevant domains
2110 connect = /m/rc/users.sqlite
2111 default_pass_scheme = SHA512-CRYPT
2112 password_query = SELECT email as user, password FROM users WHERE email='%u';
2113 user_query = SELECT email AS user, "mail" as uid, "mail" as gid, "/m/md/%d/%n" as home FROM users WHERE email='%u';
2114 iterate_query = SELECT email AS user FROM users;
2116 m
chmod 0600 /etc
/dovecot
/dovecot-sql.conf.ext
# per Dovecot instructions
2118 # db needs to be in a www-data writable directory
2119 db
=/m
/rc
/users.sqlite
2120 if [[ ! -s $db ]]; then
2122 m sqlite3
$db <<'EOF'
2123 CREATE TABLE users (
2124 id INTEGER PRIMARY KEY AUTOINCREMENT,
2125 email TEXT NOT NULL UNIQUE,
2126 password TEXT NOT NULL,
2128 privileges TEXT NOT NULL DEFAULT '');
2131 # users.sqlite is saved into /p/c/machine_specific, so update it there!.
2133 # example of adding a user:
2134 # hash: doveadm pw -s SHA512-CRYPT -p passhere
2135 # sqlite3 /m/rc/users.sqlite <<'EOF'
2136 #insert into users (email, password) values ('testignore@bk.b8.nz', 'hash');
2138 # update users set password = 'hash' where email = 'testignore@bk.b8.nz';
2140 # this should be at the end since it requires a valid dovecot config
2141 m sievec
/etc
/dovecot
/sieve-spam.sieve
2145 # roundcube uses this
2147 chown
mail.
mail /m
/sieve
2148 m pi dovecot-managesieved
2152 # * thunderbird autoconfig setup
2154 bkdomains
=(expertpathologyreview.com amnimal.ninja
)
2155 if [[ $HOSTNAME == bk
]]; then
2156 for domain
in ${bkdomains[@]}; do
2157 m
/a
/exe
/web-conf apache2 autoconfig.
$domain
2158 dir
=/var
/www
/autoconfig.
$domain/html
/mail
2160 # taken from mailinabox
2161 u
$dir/config-v1.1.xml
<<EOF
2162 <?xml version="1.0" encoding="UTF-8"?>
2163 <clientConfig version="1.1">
2164 <emailProvider id="$domain">
2165 <domain>$domain</domain>
2167 <displayName>$domain Mail</displayName>
2168 <displayShortName>$domain</displayShortName>
2170 <incomingServer type="imap">
2171 <hostname>mail2.iankelling.org</hostname>
2173 <socketType>SSL</socketType>
2174 <username>%EMAILADDRESS%</username>
2175 <authentication>password-cleartext</authentication>
2178 <outgoingServer type="smtp">
2179 <hostname>mail2.iankelling.org</hostname>
2181 <socketType>STARTTLS</socketType>
2182 <username>%EMAILADDRESS%</username>
2183 <authentication>password-cleartext</authentication>
2184 <addThisServer>true</addThisServer>
2185 <useGlobalPreferredServer>false</useGlobalPreferredServer>
2188 <documentation url="https://$domain/">
2189 <descr lang="en">$domain website.</descr>
2194 <loginPage url="https://$domain/roundcube" />
2195 <loginPageInfo url="https://$domain/roundcube" >
2196 <username>%EMAILADDRESS%</username>
2197 <usernameField id="rcmloginuser" name="_user" />
2198 <passwordField id="rcmloginpwd" name="_pass" />
2199 <loginButton id="rcmloginsubmit" />
2202 <clientConfigUpdate url="https://autoconfig.$domain/mail/config-v1.1.xml" />
2210 if [[ $HOSTNAME == bk
]]; then
2212 # zip according to /installer
2213 # which requires adding a line to /usr/local/lib/roundcubemail/config/config.inc.php
2214 # $config['enable_installer'] = true;
2215 pi roundcube roundcube-sqlite3 php-zip apache2 php-fpm
2217 ### begin composer install
2218 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
2220 EXPECTED_CHECKSUM
="$(php -r 'copy("https
://composer.github.io
/installer.sig
", "php
://stdout
");')"
2221 php
-r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
2222 ACTUAL_CHECKSUM
="$(php -r "echo hash_file
('sha384', 'composer-setup.php');")"
2224 if [ "$EXPECTED_CHECKSUM" != "$ACTUAL_CHECKSUM" ]
2226 >&2 echo 'ERROR: Invalid installer checksum'
2227 rm composer-setup.php
2231 php composer-setup.php
--quiet
2232 rm composer-setup.php
2234 # based on error when running composer
2235 mkdir
-p /var
/www
/.composer
2236 chown www-data
:www-data
/var
/www
/.composer
2238 ### end composer install
2240 rcdirs
=(/usr
/local
/lib
/rcexpertpath
/usr
/local
/lib
/rcninja
)
2241 ncdirs
=(/var
/www
/ncexpertpath
/var
/www
/ncninja
)
2242 # point debian cronjob to our local install, preventing daily cron error
2244 # debian's cronjob will fail, remove both paths it uses just to be sure
2245 rm -fv /usr
/share
/roundcube
/bin
/cleandb.sh
/etc
/cron.d
/roundcube-core
2247 #### begin dl roundcube
2248 # note, im r2e subbed to https://github.com/roundcube/roundcubemail/releases.atom
2249 v
=1.4.13; f
=roundcubemail-
$v-complete.
tar.gz
2251 if [[ -e $f ]]; then
2252 timestamp
=$
(stat
-c %Y
$f)
2256 m wget
-nv -N https
://github.com
/roundcube
/roundcubemail
/releases
/download
/$v/$f
2257 new_timestamp
=$
(stat
-c %Y
$f)
2258 for rcdir
in ${rcdirs[@]}; do
2259 if [[ $timestamp != "$new_timestamp" ||
! -e "$rcdir/config/secret" ]]; then
2260 m
tar -C /usr
/local
/lib
--no-same-owner -zxf $f
2262 m
mv /usr
/local
/lib
/roundcubemail-
$v $rcdir
2265 #### end dl roundcube
2267 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2268 domain
=${bkdomains[i]}
2273 # copied from debians cronjob
2274 u
/etc
/cron.d
/$rcbase <<EOF
2275 # Roundcube database cleaning: finally removes all records that are
2276 # marked as deleted.
2277 0 5 * * * www-data $rcdir/bin/cleandb.sh >/dev/null
2280 m
/a
/exe
/web-conf
- apache2
$domain <<EOF
2281 Alias /roundcube $rcdir
2282 ### begin roundcube settings
2283 # taken from /etc/apache2/conf-available/roundcube.conf version 1.4.8+dfsg.1-1~bpo10+1
2285 Options +FollowSymLinks
2286 # This is needed to parse $rcdir/.htaccess.
2290 # Protecting basic directories:
2291 <Directory $rcdir/config>
2292 Options -FollowSymLinks
2295 ### end roundcube settings
2298 ### begin nextcloud settings
2299 Alias /nextcloud "$ncdir/"
2303 Options FollowSymLinks MultiViews
2305 <IfModule mod_dav.c>
2311 # based on install checker, links to
2312 # https://docs.nextcloud.com/server/19/admin_manual/issues/general_troubleshooting.html#service-discovery
2313 # their example was a bit wrong, I figured it out by adding
2314 # LogLevel warn rewrite:trace5
2315 # then watching the apache logs
2318 RewriteRule ^/\.well-known/host-meta /nextcloud/public.php?service=host-meta [QSA,L]
2319 RewriteRule ^/\.well-known/host-meta\.json /nextcloud/public.php?service=host-meta-json [QSA,L]
2320 RewriteRule ^/\.well-known/webfinger /nextcloud/public.php?service=webfinger [QSA,L]
2321 RewriteRule ^/\.well-known/carddav /nextcloud/remote.php/dav/ [R=301,L]
2322 RewriteRule ^/\.well-known/caldav /nextcloud/remote.php/dav/ [R=301,L]
2323 ### end nextcloud settings
2325 if [[ ! -e $rcdir/config
/secret
]]; then
2326 base64
</dev
/urandom |
head -c24 >$rcdir/config
/secret ||
[[ $?
== 141 ||
${PIPESTATUS[0]} == 32 ]]
2328 secret
=$
(cat $rcdir/config
/secret
)
2330 rclogdir
=/var
/log
/$rcbase
2331 rctmpdir
=/var
/tmp
/$rcbase
2332 rcdb
=/m
/rc
/$rcbase.sqlite
2333 # config from mailinabox
2334 u
$rcdir/config
/config.inc.php
<<EOF
2337 # debian creates this for us
2338 \$config['log_dir'] = '$rclogdir/';
2339 # debian also creates a temp dir, but it is under its install dir,
2340 # seems better to have our own.
2341 \$config['temp_dir'] = '$rctmpdir/';
2342 \$config['db_dsnw'] = 'sqlite:///$rcdb?mode=0640';
2343 \$config['default_host'] = 'ssl://localhost';
2344 \$config['default_port'] = 993;
2345 \$config['imap_conn_options'] = array(
2347 'verify_peer' => false,
2348 'verify_peer_name' => false,
2351 \$config['imap_timeout'] = 15;
2352 \$config['smtp_server'] = 'tls://127.0.0.1';
2353 \$config['smtp_conn_options'] = array(
2355 'verify_peer' => false,
2356 'verify_peer_name' => false,
2359 \$config['product_name'] = 'webmail';
2360 \$config['des_key'] = '$secret';
2361 \$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'carddav', 'html5_notifier');
2362 \$config['skin'] = 'elastic';
2363 \$config['login_autocomplete'] = 2;
2364 \$config['password_charset'] = 'UTF-8';
2365 \$config['junk_mbox'] = 'Spam';
2366 # disable builtin addressbook
2367 \$config['address_book_type'] = '';
2371 m mkdir
-p $rclogdir
2372 m
chmod 750 $rclogdir
2373 m chown www-data
:adm
$rclogdir
2374 # note: subscribed to updates:
2375 # r2e add rcmcarddav https://github.com/blind-coder/rcmcarddav/commits/master.atom ian@iankelling.org
2376 # r2e add roundcube https://github.com/roundcube/roundcubemail/releases.atom ian@iankelling.org
2377 m mkdir
-p $rctmpdir /m
/rc
2378 m chown
-R www-data.www-data
$rctmpdir /m
/rc
2379 m
chmod 750 $rctmpdir
2380 # Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
2381 # todo: check for other mailinabox things
2382 m sudo
-u www-data
touch $rclogdir/errors.log
2384 #### begin carddav install
2385 # This is the official roundcube carddav repo.
2386 # Install doc suggests downloading with composer, but that
2387 # didnt work, it said some ldap package for roundcube was missing,
2388 # but I dont want to download some extra ldap thing.
2389 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/INSTALL.md
2390 verf
=$rcdir/plugins
/carddav
/myversion
2394 if [[ -e $verf ]]; then
2395 if [[ $
(cat $verf) != "$v" ]]; then
2403 m
rm -rf $rcdir/plugins
/carddav
2405 m wget
-nv -O $tmpd/t.tgz https
://github.com
/blind-coder
/rcmcarddav
/releases
/download
/v
$v/carddav-v
$v.
tar.gz
2409 m chown
-R www-data
:www-data
$rcdir/plugins
/carddav
2410 m
cd $rcdir/plugins
/carddav
2412 m sudo
-u www-data composer.phar update
--no-dev
2414 m sudo
-u www-data composer.phar
install --no-dev
2416 m chown
-R root
:root
$rcdir/plugins
/carddav
2420 # So, strangely, this worked in initial testing, but then
2421 # on first run it wouldn't show the existing contacts until
2422 # I went into the carddav settings and did "force immediate sync",
2423 # which seemed to fix things. Note, some of these settings
2424 # get initalized per/addressbook in the db, then need changing
2425 # there or through the settings menu.
2427 # About categories, see https://www.davx5.com/tested-with/nextcloud
2428 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/GROUPS.md
2429 u
$rcdir/plugins
/carddav
/config.inc.php
<<EOF;
2431 \$prefs['_GLOBAL']['hide_preferences'] = false;
2432 \$prefs['davserver'] = array(
2433 # name in the UI is kind of dumb. This is just something short that seems to fit ok.
2435 'username' => '%u', // login username
2436 'password' => '%p', // login password
2437 'url' => 'https://$domain/nextcloud/remote.php/dav/addressbooks/users/%u/contacts',
2439 'readonly' => false,
2440 'refresh_time' => '00:10:00',
2441 'fixed' => array('username','password'),
2442 'use_categories' => false,
2447 #### end carddav install
2450 if [[ ! -d html5_notifier
]]; then
2451 m git clone https
://github.com
/stremlau
/html5_notifier
2453 cd $rcdir/plugins
/html5_notifier
2456 # todo: try out roundcube plugins: thunderbird labels
2458 # Password changing plugin settings
2459 cat $rcdir/plugins
/password
/config.inc.php.dist
- >$rcdir/plugins
/password
/config.inc.php
<<'EOF'
2460 # following are from mailinabox
2461 $config['password_minimum_length'] = 8;
2462 $config['password_db_dsn'] = 'sqlite:////m/rc/users.sqlite';
2463 $config['password_query'] = 'UPDATE users SET password=%D WHERE email=%u';
2464 $config['password_dovecotpw'] = '/usr/bin/doveadm pw';
2465 $config['password_dovecotpw_method'] = 'SHA512-CRYPT';
2466 $config['password_dovecotpw_with_method'] = true;
2468 # so PHP can use doveadm, for the password changing plugin
2469 m usermod
-a -G dovecot www-data
2470 m usermod
-a -G mail $u
2472 # so php can update passwords
2473 m chown www-data
:dovecot
/m
/rc
/users.sqlite
2474 m
chmod 664 /m
/rc
/users.sqlite
2476 # Run Roundcube database migration script (database is created if it does not exist)
2477 m
$rcdir/bin
/updatedb.sh
--dir $rcdir/SQL
--package roundcube
2478 m chown www-data
:www-data
$rcdb
2480 done # end loop over domains and rcdirs
2482 ### begin php setup for rc ###
2483 # Enable PHP modules.
2484 m phpenmod
-v php mcrypt imap
2485 # dpkg says this is required.
2486 # nextcloud needs these too
2487 m a2enmod proxy_fcgi setenvif
2488 fpm
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* (php[^ ]*-fpm)( .*|$)/\1/p') # eg: php7.4-fpm
2489 phpver
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* php([^ ]*)-fpm( .*|$)/\1/p')
2491 # 3 useless guides on php fpm fcgi debian 10 later, i figure out from reading
2492 # /etc/apache2/conf-enabled/php7.3-fpm.conf
2493 m a2dismod php
$phpver
2494 # according to /install, we should set date.timezone,
2495 # but that is dumb, the system already has the right zone in
2496 # $rclogdir/errors.log
2497 # todo: consider other settings in
2498 # /a/opt/mailinabox/setup/nextcloud.sh
2499 u
/etc
/php
/$phpver/cli
/conf.d
/30-local.ini
<<'EOF'
2503 u
/etc
/php
/$phpver/fpm
/conf.d
/30-local.ini
<<'EOF'
2504 date.timezone = "America/New_York"
2506 upload_max_filesize = 2000M
2507 post_max_size = 2000M
2508 # install checker, nextcloud/settings/admin/overview
2511 m systemctl restart
$fpm
2512 # dunno if reload/restart is needed
2513 m systemctl reload apache2
2514 # note bk backups are defined in crontab outside this file
2515 ### end php setup for rc ###
2517 fi # end roundcube setup
2521 if [[ $HOSTNAME == bk
]]; then
2522 # from install checker, nextcloud/settings/admin/overview and
2523 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2524 # curl from the web installer requirement, but i switched to cli
2525 # it recommends php-file info, but that is part of php7.3-common, already got installed
2527 m pi php-curl php-bz2 php-gmp php-bcmath php-imagick php-apcu
2529 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2530 cat >/etc
/php
/$phpver/fpm
/pool.d
/localwww.conf
<<'EOF'
2535 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2536 domain
=${bkdomains[i]}
2538 myncdir
=/var
/local
/${ncdir##*/}
2542 if [[ ! -e $ncdir/index.php
]]; then
2543 # if we wanted to only install a specific version, use something like
2544 # file=latest-22.zip
2546 m wget
-nv -N https
://download.nextcloud.com
/server
/releases
/$file
2550 m chown
-R www-data.www-data nextcloud
2551 m
mv nextcloud
$ncdir
2554 if [[ ! -e $myncdir/done-install
]]; then
2556 m sudo
-u www-data php occ maintenance
:install --database sqlite
--admin-user iank
--admin-pass $nextcloud_admin_pass
2557 m
touch $myncdir/done-install
2561 # if we did this more than once, it would revert the
2562 # version number to the original.
2563 if [[ ! -e $myncdir/config.php-orig ||
! -s config.php
]]; then
2564 if [[ -s config.php
]]; then
2565 m
cp -a config.php
$myncdir/config.php-orig
2566 # keep the file so it keeps the same permissions.
2567 truncate
-s0 config.php
2569 cat $myncdir/config.php-orig
- >$myncdir/tmp.php
<<EOF
2570 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/email_configuration.html
2571 \$CONFIG["mail_smtpmode"] = "sendmail";
2572 \$CONFIG["mail_smtphost"] = "127.0.0.1";
2573 \$CONFIG["mail_smtpport"] = 25;
2574 \$CONFIG["mail_smtptimeout"] = 10;
2575 \$CONFIG["mail_smtpsecure"] = "";
2576 \$CONFIG["mail_smtpauth"] = false;
2577 \$CONFIG["mail_smtpauthtype"] = "LOGIN";
2578 \$CONFIG["mail_smtpname"] = "";
2579 \$CONFIG["mail_smtppassword"] = "";
2580 \$CONFIG["mail_domain"] = "$domain";
2582 # https://github.com/nextcloud/user_external#readme
2583 # plus mailinabox example
2584 #\$CONFIG['user_backends'] = array(array('class' => 'OC_User_IMAP','arguments' => array('127.0.0.1', 143, null),),);
2587 # based on installer check
2588 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/caching_configuration.html
2589 \$CONFIG['memcache.local'] = '\OC\Memcache\APCu';
2591 \$CONFIG['overwrite.cli.url'] = 'https://$domain/nextcloud';
2592 \$CONFIG['htaccess.RewriteBase'] = '/nextcloud';
2593 \$CONFIG['trusted_domains'] = array (
2597 fwrite(STDOUT, "<?php\n\\\$CONFIG = ");
2598 var_export(\$CONFIG);
2599 fwrite(STDOUT, ";\n");
2601 e running php
$myncdir/tmp.php
2602 # note: we leave it around place for debugging
2603 # shellcheck disable=SC2024 # intended
2604 sudo
-u www-data php
$myncdir/tmp.php
>config.php
2607 m sudo
-u www-data php occ maintenance
:update
:htaccess
2608 list
=$
(sudo
-u www-data php
$ncdir/occ
--output=json_pretty app
:list
)
2609 # user_external not compaible with nc 23
2610 for app
in contacts calendar
; do
2611 if [[ $
(printf "%s\n" "$list"| jq
".enabled.$app") == null
]]; then
2613 m sudo
-u www-data php occ app
:install $app
2616 u
/etc
/systemd
/system
/$ncbase.service
<<EOF
2618 Description=ncup $ncbase
2619 After=multi-user.target
2623 ExecStart=/usr/local/bin/ncup $ncbase
2625 IOSchedulingClass=idle
2626 CPUSchedulingPolicy=idle
2628 u
/etc
/systemd
/system
/$ncbase.timer
<<EOF
2630 Description=ncup $ncbase timer
2636 WantedBy=timers.target
2638 systemctl
enable --now $ncbase.timer
2639 u
/usr
/local
/bin
/ncup
<<'EOFOUTER'
2642 source /usr/local/lib/err
2644 m() { printf "%s\n" "$*"; "$@"; }
2646 echo failed nextcloud update for $ncbase >&2
2647 # -odf or else systemd will kill the background delivery process
2648 # and the message will sit in the queue until the next queue run.
2650 To: alerts@iankelling.org
2651 From: www-data@$(hostname -f)
2652 Subject: failed nextcloud update for $ncbase
2654 For logs, run: jr -u $ncbase
2658 if [[ $(id -u -n) != www-data ]]; then
2659 echo error: running as wrong user: $(id -u -n), expected www-data
2664 echo error: expected an arg, nextcloud relative base dir
2670 # https://docs.nextcloud.com/server/22/admin_manual/maintenance/update.html?highlight=updater+phar
2671 # the docs claim this is all you need, which is not true.
2672 # You will go to the web ui and it will say that you need to click a button to update,
2673 # or that you can run occ upgrade
2674 m php /var/www/$ncbase/updater/updater.phar -n
2675 # throw a sleep in just because who knows what else is undocumented
2679 chmod +x
/usr
/local
/bin
/ncup
2681 mkdir
-p /var
/www
/cron-errors
2682 chown www-data.www-data
/var
/www
/cron-errors
2683 u
/etc
/cron.d
/$ncbase <<EOF
2684 PATH=/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin
2686 # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/background_jobs_configuration.html
2687 */5 * * * * www-data php -f $ncdir/cron.php --define apc.enable_cli=1 |& log-once nccron
2694 # * exim host conditional config
2698 all_dirs
=(/p
/c
/filesystem
)
2699 for x
in /p
/c
/machine_specific
/*.hosts
/a
/bin
/ds
/machine_specific
/*.hosts
; do
2700 if grep -qxF $HOSTNAME $x; then all_dirs
+=( ${x%.hosts} ); fi
2703 for d
in ${all_dirs[@]}; do
2704 f
=$d/etc
/exim
4/passwd
2705 if [[ -e $f ]]; then
2708 tmp
=($d/etc
/exim
4/*.pem
)
2709 if (( ${#tmp[@]} )); then
2714 if (( ${#files[@]} )); then
2715 sudo rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 ${files[@]} /etc
/exim
4/
2723 # avoid accepting mail for invalid users
2724 # https://wiki.dovecot.org/LMTP/Exim
2725 cat >>/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2727 message = invalid recipient
2728 domains = +local_domains
2729 !verify = recipient/callout=no_cache
2731 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2735 server_socket = /var/run/dovecot/auth-client
2736 server_set_id = $auth1
2741 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2742 # from 30_exim4-config_examples
2746 server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
2747 server_set_id = $auth2
2749 .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
2750 server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
2755 # ** exim: main daemon use non-default config file
2758 # to see the default comments in /etc/default/exim4:
2759 # s update-exim4defaults --force --init
2760 # which will overwrite any existing file
2761 u
/etc
/default
/exim4
<<'EOF'
2762 QUEUERUNNER='combined'
2764 COMMONOPTIONS='-C /etc/exim4/my.conf'
2765 UPEX4OPTS='-o /etc/exim4/my.conf'
2766 # i use epanic-clean for alerting if there are bad paniclog entries
2767 E4BCD_WATCH_PANICLOG='no'
2769 # make exim be a nonroot setuid program.
2770 chown Debian-exim
:Debian-exim
/usr
/sbin
/exim4
2771 # needs guid set in order to become Debian-exim
2772 chmod g
+s
,u
+s
/usr
/sbin
/exim4
2773 # need this to avoid error on service reload:
2774 # 2022-08-07 18:44:34.005 [892491] pid 892491: SIGHUP received: re-exec daemon
2775 # 2022-08-07 18:44:34.036 [892491] cwd=/var/spool/exim4 5 args: /usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf
2776 # 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)
2777 # note: the daemon gives up and dies after retrying those 9 times.
2778 # I came upon this by guessing and trial and error.
2779 setcap CAP_NET_BIND_SERVICE
+ei
/usr
/sbin
/exim4
2780 u
/etc
/exim
4/trusted_configs
<<'EOF'
2786 u
/etc
/default
/exim4
<<'EOF'
2787 QUEUERUNNER='combined'
2797 # no reason to expect it to ever be there.
2798 rm -fv /etc
/systemd
/system
/exim4.service.d
/nonroot.conf
2802 for d
in /a
/d
/m
/media
/mnt
/nocow
/o
/p
/q
; do
2803 if [[ -d $d ]]; then
2807 u
/etc
/systemd
/system
/exim4.service.d
/nonroot.conf
<<EOF
2809 # see 56.2 Root privilege in exim spec
2810 AmbientCapabilities=CAP_NET_BIND_SERVICE
2811 # https://www.redhat.com/sysadmin/mastering-systemd
2812 # things that seem good and reasonabl.e
2815 # note, in t10 systemd, if one of these is an sshfs mountpoint,
2816 # this whole setting doesnt work. tried it with a newer systemd 250 though
2817 # an nspawn, and it worked there.
2818 InaccessiblePaths=${dirs[@]}
2819 # this gives us the permission denied error:
2820 # socket bind() to port 25 for address (any IPv6) failed: Permission denied
2821 # but we also have to set the file capabilities to avoid the error.
2822 #NoNewPrivileges=yes
2825 # when we get newer systemd
2828 u
/etc
/exim
4/conf.d
/main
/000_local-noroot
<<'EOF'
2829 # see 56.2 Root privilege in exim spec
2830 deliver_drop_privilege = true
2833 300_exim4-config_real_local
2834 600_exim4-config_userforward
2835 700_exim4-config_procmail
2836 800_exim4-config_maildrop
2839 for f
in ${files[@]}; do
2840 echo "# iank: removed due to running nonroot"|u
/etc
/exim
4/conf.d
/router
/$f
2847 # ** $MAIL_HOST|bk|je)
2850 echo|u
/etc
/exim
4/conf.d
/router
/165_backup_local
2852 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2853 # note: some things we don't set that are here by default because they are unused.
2854 dc_local_interfaces=''
2855 dc_eximconfig_configtype='internet'
2856 dc_localdelivery='dovecot_lmtp'
2858 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2859 # recommended if dns is expected to work
2860 CHECK_RCPT_VERIFY_SENDER = true
2861 # default config comment says: If you enable this, you might reject legitimate mail,
2862 # but eggs has had this a long time, so that seems unlikely.
2863 CHECK_RCPT_SPF = true
2864 CHECK_RCPT_REVERSE_DNS = true
2865 CHECK_MAIL_HELO_ISSUED = true
2868 CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl
2869 CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl
2872 #dmarc_tld_file = /etc/public_suffix_list.dat
2880 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2881 dc_relay_nets='defaultnn.b8.nz'
2884 # no clamav on je, it has 1.5g memory and clamav uses most of it
2885 u
/etc
/exim
4/conf.d
/clamav_data_acl
<<'EOF'
2887 !hosts = +iank_trusted
2888 !authenticated = plain_server:login_server
2889 condition = ${if def:malware_name}
2890 remove_header = Subject:
2891 add_header = Subject: [Clamav warning: $malware_name] $h_subject
2892 log_message = heuristic malware warning: $malware_name
2895 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2896 # je.b8.nz will run out of memory with freshclam
2897 av_scanner = clamd:/var/run/clamav/clamd.ctl
2900 cat >> /etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
2902 malware = */defer_ok
2903 !condition = ${if match {$malware_name}{\N^Heuristic\N}}
2904 message = This message was detected as possible malware ($malware_name).
2907 cat >/etc
/exim
4/conf.d
/main
/000_local-nn
<<EOF
2908 # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the
2909 # smarthost config type, not sure.
2910 # failing message on mail-tester.com:
2911 # We check if there is a server (A Record) behind your hostname kd.
2912 # You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software
2913 # https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box
2914 # and this one seemed appropriate from grepping config.
2915 # I originally set this to li.iankelling.org, but then ended up with errors when li tried to send
2916 # mail to kd, so this should basically be a name that no host has as their
2917 # canonical hostname since the actual host sits behind a nat and changes.
2918 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org
2919 # I used this to avoid sender verification, didnt work but it still
2920 # makes sense based on the spec.
2921 hosts_treat_as_local = defaultnn.b8.nz
2923 # Outside nn, we get the default cert location from a debian macro,
2924 # and the cert file is put in place by a certbot hook.
2925 MAIN_TLS_CERTIFICATE = /etc/exim4/fullchain.pem
2926 MAIN_TLS_PRIVATEKEY = /etc/exim4/privkey.pem
2929 u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
<<'EOF'
2931 debug_print = "R: smarthost for $local_part@$domain"
2932 driver = manualroute
2933 domains = ! +local_domains
2934 # send most mail through eggs, helps fsfs sender reputation.
2935 # uncomment and optionally move to 188 file to send through my own servers again
2937 transport = smarthost_dkim
2938 route_list = * fencepost.gnu.org::587 byname
2939 host_find_failed = ignore
2940 same_domain_copy_routing = yes
2944 /a
/exe
/cedit defaultnn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2945 10.173.8.1 defaultnn.b8.nz
2951 u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
<<'EOF'
2952 # copied from /etc/exim4/conf.d/router/200_exim4-config_primary, but
2953 # use vpn transport. lower priority so it overrides the default route.
2954 # Use this in case our vpn fails, we dont send anything without it.
2955 .ifdef DCconfig_internet
2957 debug_print = "R: dnslookup for $local_part@$domain"
2959 domains = ! +local_domains
2960 transport = remote_smtp_vpn
2961 same_domain_copy_routing = yes
2962 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
2968 # note on backups: I used to do an automatic sshfs and restricted
2969 # permissions to a specific directory on the remote server, /bu/mnt,
2970 # which required using a dedicated user, but realized smtp will be
2971 # more reliable and less fuss. If I ever need that again, see the
2972 # history of this file, and bum in brc2.
2973 u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
<<'EOF'
2976 # b is just an arbirary short string
2977 data = b@eximbackup.b8.nz
2978 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
2979 # note, to test this, i could temporarily allow testignore.
2980 # alerts avoids potential mail loop. root is already
2981 # redirected earlier, so that is just being overly cautious.
2982 local_parts = ! root : ! testignore : ! alerts
2984 errors_to = alerts@iankelling.org
2989 # This allows for forwarded mail to not get most rcpt checks, especially SPF,
2990 # which would incorrectly get denied.
2991 u
/etc
/exim
4/host_local_deny_exceptions
<<'EOF'
2996 # cron email from smarthost hosts will automatically be to
2997 # USER@FQDN. I redirect that to alerts@, on the smarthosts, but in
2998 # case that doesn't work, we still want to accept that mail, but not
2999 # from any host except the smarthosts. local_hostnames and this rule
3000 # is for that purpose.
3001 u
/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
3004 domains = +local_hostnames
3007 # for testing bounce behavior
3009 # senders = testlist-bounces+test=zroe.org@fsf.org
3010 # message = iank-bounce
3012 echo|u
/etc
/exim
4/conf.d
/router
/880_universal_forward
3015 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3016 MAILDIR_HOME_MAILDIR_LOCATION = /m/md/Sent
3020 u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
<<'EOF'
3021 # ian: save a copy of sent mail. i thought of other ways to
3022 # do this, for example, to only save sent mail that is not sent
3023 # from my mail client which saves a copy by default, but in the
3024 # end, it seems simplest to turn that off. We want to save
3025 # external mail sent by smarthosts.
3028 domains = ! +local_domains
3029 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3030 data = vojdedIdNejyebni@b8.nz
3035 # for iank@fsf.org, i have mail.fsf.org forward it to fsf@iankelling.org.
3036 # and also have mail.iankelling.org whitelisted as a relay domain.
3037 # I could avoid that if I changed this to submit to 587 with a
3038 # password like a standard mua.
3039 u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
<<'EOF'
3040 # ian: copied from /etc/exim4/conf.d/router/200_exim4-config_primary, and added senders = and
3041 # replaced DCsmarthost with hostname
3043 debug_print = "R: smarthost for $local_part@$domain"
3044 driver = manualroute
3045 domains = ! +local_domains
3047 transport = remote_smtp_smarthost
3048 route_list = * mail.fsf.org::587 byname
3049 host_find_failed = ignore
3050 same_domain_copy_routing = yes
3054 debug_print = "R: smarthost for $local_part@$domain"
3055 driver = manualroute
3056 domains = ! +local_domains
3057 senders = *@posteo.net
3058 transport = remote_smtp_smarthost
3059 route_list = * posteo.de::587 byname
3060 host_find_failed = ignore
3061 same_domain_copy_routing = yes
3065 # Greping /etc/exim4, unqualified mails this would end up as
3066 # a return path, so it should go somewhere we will see.
3067 # The debconf output about mailname is as follows:
3068 # The 'mail name' is the domain name used to 'qualify' mail addresses without a domain
3070 # This name will also be used by other programs. It should be the single, fully
3071 # qualified domain name (FQDN).
3072 # Thus, if a mail address on the local host is foo@example.org, the correct value for
3073 # this option would be example.org.
3074 # This name won\'t appear on From: lines of outgoing messages if rewriting is enabled.
3075 echo iankelling.org
> /etc
/mailname
3078 # mail.iankelling.org so local imap clients can connect with tls and
3079 # when they happen to not be local.
3080 # todo: this should be 10.8.0.4
3082 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3083 # note: i put nn.b8.nz into bind for good measure
3084 10.173.8.2 nn.b8.nz mx.iankelling.org
3087 # note: systemd-resolved will consult /etc/hosts, dnsmasq wont. this assumes
3088 # weve configured this file in dnsmasq if we are using it.
3089 /a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf
<<'EOF' || [[ $? == 1 ]]
3090 server=/mx.iankelling.org/127.0.1.1
3092 # I used to use debconf-set-selections + dpkg-reconfigure,
3093 # which then updates this file
3094 # but the process is slower than updating it directly and then I want to set other things in
3095 # update-exim4.conf.conf, so there's no point.
3096 # The file is documented in man update-exim4.conf,
3097 # except the man page is not perfect, read the bash script to be sure about things.
3099 # The debconf questions output is additional documentation that is not
3100 # easily accessible, but super long, along with the initial default comment in this
3101 # file, so I've saved that into ./mail-notes.conf.
3103 # # TODO: remove mx.iankelling.org once systems get updated mail-setup from jan 2022
3104 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3105 # man page: is used to build the local_domains list, together with "localhost"
3106 # this is duplicated in a later router.
3107 dc_other_hostnames='iankelling.org;zroe.org;r2e.iankelling.org;mx.iankelling.org;!je.b8.nz;!bk.b8.nz;*.b8.nz;b8.nz'
3111 # dmarc. not used currently
3112 f
=/etc
/cron.daily
/refresh-dmarc-tld-file
3116 wget -q -N https://publicsuffix.org/list/public_suffix_list.dat
3122 ## we use this host to monitor MAIL_HOST and host a mail server for someone
3126 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3130 sed -r -f - /etc
/init.d
/exim4
<<'EOF' |u /etc/init.d/exim4in
3131 s,/etc/default/exim4,/etc/default/exim4in,g
3132 s,/run/exim4/exim.pid,/run/exim4/eximin.pid,g
3133 s,(^[ #]*Provides:).*,\1 exim4in,
3134 s,(^[ #]*NAME=).*,\1"exim4in",
3136 chmod +x
/etc
/init.d
/exim4in
3137 u
/etc
/systemd
/system
/exim4in.service.d
/alwaysrestart.conf
<<'EOF'
3139 # needed to continually restart
3140 StartLimitIntervalSec=0
3144 # time to sleep before restarting a service
3148 u
/etc
/default
/exim4in
<<'EOF'
3149 # defaults but no queue runner and alternate config dir
3151 COMMONOPTIONS='-oP /run/exim4/eximin.pid'
3152 UPEX4OPTS='-d /etc/myexim4'
3155 echo bk.b8.nz
> /etc
/mailname
3156 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3157 # man page: is used to build the local_domains list, together with "localhost"
3158 dc_other_hostnames='amnimal.ninja;expertpathologyreview.com;bk.b8.nz'
3164 echo je.b8.nz
> /etc
/mailname
3165 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3166 dc_other_hostnames='je.b8.nz'
3169 # ** not MAIL_HOST|bk|je
3171 # this one should be removed for all non mail hosts, but
3172 # bk and je never become mail_host
3173 echo|u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
3174 echo|u
/etc
/exim
4/conf.d
/router
/160_backup_redir
3175 echo|u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
3176 echo|u
/etc
/exim
4/conf.d
/router
/185_sentarchive
3177 echo|u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
3178 echo|u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
3179 echo|u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
3180 echo|u
/etc
/exim
4/conf.d
/rcpt_local_acl
3181 echo|u
/etc
/exim
4/conf.d
/main
/000_local-nn
3182 echo|u
/etc
/exim
4/conf.d
/clamav_data_acl
3186 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3187 MAIN_TLS_CERTIFICATE = /etc/exim4/certs/$wghost/fullchain.pem
3188 MAIN_TLS_PRIVATEKEY = /etc/exim4/certs/$wghost/privkey.pem
3189 # so we can maintiain the originals of the backups.
3190 # we wouldnt want this if we were dealing with any other
3191 # local deliveries, but we sent all others to the smarthost
3192 # which then strips the headers.
3193 envelope_to_remove = false
3194 return_path_remove = false
3198 # catches things like cronjob email
3199 u
/etc
/exim
4/conf.d
/router
/880_universal_forward
<<'EOF'
3202 domains = +local_domains
3203 data = alerts@iankelling.org
3207 for unit
in ${nn_progs[@]}; do
3208 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
3212 # dont i dont care if defaultnn section gets left, it wont
3214 echo |
/a
/exe
/cedit nn
/etc
/hosts ||
[[ $?
== 1 ]]
3215 echo |
/a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf ||
[[ $?
== 1 ]]
3217 # note: condition duplicated at else
3220 install -d -g Debian-exim
-o Debian-exim
-m 771 /bu
/md
3221 if [[ -e /bu
/md
/cur
&& $
(stat
-c %u
/bu
/md
/cur
) == 1000 ]]; then
3222 chown
-R Debian-exim
:Debian-exim
/bu
/md
3224 u
/etc
/exim
4/conf.d
/transport
/30_backup_maildir
<<EOF
3225 # modified debian maildir transport
3230 # note, no return path or envelope added
3232 directory_mode = 0700
3234 mode_fail_narrower = false
3237 u
/etc
/exim
4/conf.d
/router
/165_backup_local
<<'EOF'
3238 ### router/900_exim4-config_local_user
3239 #################################
3242 debug_print = "R: local_user for $local_part@$domain"
3244 domains = eximbackup.b8.nz
3245 transport = backup_maildir
3248 # Bind to wghole to receive mailbackup.
3249 wgholeip
=$
(sed -rn 's/^ *Address *= *([^/]+).*/\1/p' /etc
/wireguard
/wghole.conf
)
3250 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3251 dc_other_hostnames='eximbackup.b8.nz'
3252 dc_local_interfaces='127.0.0.1;::1;$wgholeip'
3255 # wghole & thus exim will fail to start without internet connectivity.
3256 u
/etc
/systemd
/system
/exim4.service.d
/backup.conf
<<'EOF'
3258 StartLimitIntervalSec=0
3265 else # if $bhost_t; then
3266 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3267 # Note: If theres like a temporary problem where mail gets sent to
3268 # one of these hosts, if exim isnt listening, it will be a temporary error
3269 # instead of a permanent 5xx.
3270 dc_local_interfaces='127.0.0.1;::1'
3272 rm -fv /etc
/systemd
/system
/exim4.service.d
/backup.conf
3274 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3275 dc_eximconfig_configtype='smarthost'
3276 dc_smarthost='$smarthost'
3279 hostname
-f |u
/etc
/mailname
3280 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3281 # The manpage incorrectly states this will do header rewriting, but
3282 # that only happens if we have dc_hide_mailname is set.
3283 dc_readhost='iankelling.org'
3284 # Only used in case of bounces.
3285 dc_localdelivery='maildir_home'
3293 # ** $MAILHOST|bk, things that belong at the end
3296 # config for the non-nn exim. note, it uses not default dir, but we
3297 # generate that into the default config file
3298 m rsync
-ra --delete --delete-excluded \
3299 --exclude=/conf.d
/router
/161_backup_redir_nn \
3300 --exclude=/conf.d
/router
/186_sentarchive_nn \
3301 --exclude=/conf.d
/main
/000_local-nn
/etc
/exim
4/ /etc
/myexim4
3302 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3303 # this makes it easier to see which exim is doing what
3304 log_file_path = /var/log/exim4/my%s
3309 cat >/etc
/logrotate.d
/myexim
<<'EOF'
3310 /var/log/exim4/mymain /var/log/exim4/myreject {
3318 /var/log/exim4/mypanic {
3329 # If we ever wanted to have a separate spool,
3330 # we could do it like this.
3331 # cat >>/etc/exim4/conf.d/main/000_local-nn <<'EOF'
3332 # spool_directory = /var/spool/myexim4
3334 cat >>/etc
/myexim
4/update-exim4.conf.conf
<<'EOF'
3335 dc_eximconfig_configtype='smarthost'
3336 dc_smarthost='nn.b8.nz'
3341 # config for the non-nn exim
3342 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3343 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail2.iankelling.org
3349 u
/etc
/myexim
4/conf.d
/router
/185_sentarchive
<<'EOF'
3352 domains = ! +local_domains
3353 senders = <; *@fsf.org ; *@posteo.net
3354 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3355 data = vojdedIdNejyebni@b8.nz
3359 u
/etc
/myexim
4/conf.d
/router
/160_backup_redir
<<'EOF'
3362 # i dont email myself from my own machine much, so lets ignore that.
3363 domains = ! +local_domains
3364 senders = <; *@fsf.org ; *@posteo.net
3365 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3366 # b is just an arbirary short string
3367 data = b@eximbackup.b8.nz
3368 # note, to test this, i could temporarily allow testignore.
3369 # alerts avoids potential mail loop.
3370 local_parts = ! root : ! testignore : ! alerts : ! daylert
3372 errors_to = alerts@iankelling.org
3375 # for bk, we have a exim4in.service that will do this for us.
3376 m update-exim4.conf
-d /etc
/myexim4
3382 # ** bind mount setup
3383 # put spool dir in directory that spans multiple distros.
3384 # based on http://www.postfix.org/qmgr.8.html and my notes in gnus
3387 sdir
=/var
/spool
/exim4
3388 # we only do this if our system has $dir
3390 # this used to do a symlink, but, in the boot logs, /nocow would get mounted succesfully,
3391 # about 2 seconds later, exim starts, and immediately puts into paniclog:
3392 # honVi-0000u3-82 Failed to create directory "/var/spool/exim4/input": No such file or directory
3393 # so, im trying a bind mount to get rid of that.
3394 if [[ -e /nocow
]]; then
3395 if ! grep -Fx "/nocow/exim4 /var/spool/exim4 none bind 0 0" /etc
/fstab
; then
3396 echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc
/fstab
3398 u
/etc
/systemd
/system
/exim4.service.d
/override.conf
<<'EOF'
3400 # without local-fs on exim, we get these kind of errors in paniclog on shutdown:
3401 # Failed to create spool file /var/spool/exim4//input//1jCLxz-0008V4-V9-D: Permission denied
3402 After=local-fs.target
3405 ExecStartPre=/usr/local/bin/exim-nn-iptables
3407 if ! mountpoint
-q $sdir; then
3408 stopifactive exim4 exim4in
3409 if [[ -L $sdir ]]; then
3412 if [[ ! -e $dir && -d $sdir ]]; then
3415 if [[ ! -d $sdir ]]; then
3417 m
chmod 000 $sdir # only want it to be used when its mounted
3425 # ** exim/spool uid setup
3426 # i have the spool directory be common to distro multi-boot, so
3427 # we need the uid to be the same. 608 cuz it's kind of in the middle
3428 # of the free system uids.
3429 IFS
=:; read -r _ _ uid _
< <(getent passwd Debian-exim ||
:) ||
:; unset IFS
3430 IFS
=:; read -r _ _ gid _
< <(getent group Debian-exim ||
:) ||
:; unset IFS
3431 if [[ ! $uid ]]; then
3432 # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options
3433 m adduser
--uid 608 --system --group --quiet --home /var
/spool
/exim4 \
3434 --no-create-home --disabled-login --force-badname Debian-exim
3435 elif [[ $uid != 608 ]]; then
3436 stopifactive exim4 exim4in
3437 m usermod
-u 608 Debian-exim
3438 m groupmod
-g 608 Debian-exim
3439 m usermod
-g 608 Debian-exim
3440 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -uid $uid -execdir chown
-h 608 {} +
3441 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -gid $gid -execdir chgrp
-h 608 {} +
3444 # * start / stop services
3446 reifactive dnsmasq nscd
3449 m systemctl daemon-reload
3452 # optimization, this only needs to run once.
3453 if [[ ! -e /sys
/class
/net
/wghole
]]; then
3454 # checking bhost_t is redundant, but could help us catch errors.
3455 if $bhost_t ||
[[ -e /etc
/wireguard
/wghole.conf
]]; then
3456 # todo: in mail-setup, we have a static list of backup hosts, not *y
3457 m systemctl
--now enable wg-quick@wghole
3461 # optimization, this only needs to be run once
3462 if [[ ! -e /var
/lib
/prometheus
/node-exporter
/exim_paniclog.prom
]]; then
3463 sysd-prom-fail-install epanicclean
3464 m systemctl
--now enable epanicclean
3469 /a
/exe
/web-conf apache2 je.b8.nz
3472 /a
/exe
/web-conf apache2 mail2.iankelling.org
3476 # optimization, this only needs to run once.
3477 if [[ ! -e /etc
/exim
4/fullchain.pem
]]; then
3478 m
/a
/bin
/ds
/mail-cert-cron
-1
3479 m systemctl
--now enable mailcert.timer
3484 m systemctl
--now enable mailnn mailnnroute
3487 # we use dns to start wg
3491 m systemctl
--now enable unbound
3495 # If these have changes, id rather manually restart it, id rather
3496 # not restart and cause temporary errors
3500 m systemctl
--now enable $vpnser
3502 if ! systemctl is-active clamav-daemon
>/dev
/null
; then
3503 m systemctl
--now enable clamav-daemon
3504 out
=$
(rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/filesystem
/etc
/systemd
/system
/epanicclean.service
/etc
/systemd
/system
)
3509 # note, this will cause paniclog entries because it takes like 45
3510 # seconds for clamav to start, i use ./epanic-clean to remove
3515 # start spamassassin/dovecot before exim.
3516 sre dovecot spamassassin
3517 # Wait a bit before restarting exim, else I get a paniclog entry
3518 # like: spam acl condition: all spamd servers failed. But I'm tired
3519 # of waiting. I'll deal with this some other way.
3522 m systemctl
--now enable mailclean.timer
3525 # < 2.1 (eg: in t9), uses a different data format which required manual
3526 # migration. dont start if we are running an old version.
3527 if dpkg
--compare-versions "$(dpkg -s radicale | awk '$1 == "Version
:" { print $2 }')" ge
2.1; then
3528 m systemctl
--now enable radicale
3533 # for debugging dns issues
3536 systemctl
enable --now logrotate-fast.timer
3540 # last use of $reload happens in previous block
3541 rm -f /var
/local
/mail-setup-reload
3545 $MAIL_HOST|bk|je|li
)
3546 # on li, these are never started, except $vpnser
3550 soff radicale mailclean.timer dovecot spamassassin
$vpnser mailnn clamav-daemon
3558 m systemctl
--now enable mailbindwatchdog
3561 soff mailbindwatchdog
3570 # * mail monitoring / testing
3572 # note, to test clamav, send an email with body that only contains
3573 # https://en.wikipedia.org/wiki/EICAR_test_file
3574 # which set malware_name to Eicar-Signature
3577 # note: cronjob "ian" also does some important monitoring
3578 # todo: this will sometimes cause an alert because mailtest-check will run
3579 # before we have setup network namespace and spamassassin
3580 u
/etc
/cron.d
/mailtest
<<EOF
3582 PATH=/usr/bin:/bin:/usr/local/bin
3583 MAILTO=daylert@iankelling.org
3584 */5 * * * * $u send-test-forward |& log-once send-test-forward
3585 */10 * * * * root chmod -R g+rw /m/md/bounces |& log-once -1 bounces-chmod
3586 # if a bounce happened yesterday, dont let it slip through the cracks
3587 8 1 * * * root export MAILTO=alerts@iankelling.org; [[ -s /var/log/exim4/mainlog.1 ]] && awk '\$5 == "**"' /var/log/exim4/mainlog.1
3591 m sudo rsync
-ahhi --chown=root
:root
--chmod=0755 \
3592 /b
/ds
/mailtest-check
/b
/ds
/check-remote-mailqs
/usr
/local
/bin
/
3593 u
/etc
/systemd
/system
/mailtest-check.service
<<'EOF'
3595 Description=mailtest-check
3596 After=local-fs.target
3597 StartLimitIntervalSec=0
3601 ExecStart=/usr/local/bin/mailtest-check slow
3606 WantedBy=graphical.target
3608 sysd-prom-fail-install mailtest-check
3612 test_froms
=(ian@iankelling.org z@zroe.org iank@gnu.org
)
3613 test_tos
=(testignore@expertpathologyreview.com testignore@je.b8.nz testignore@amnimal.ninja jtuttle@gnu.org
)
3615 cat >>/etc
/cron.d
/mailtest
<<EOF
3617 0 10 * * 5 root echo "weekly alert. You are not in the matrix."
3618 2 * * * * root check-remote-mailqs |& log-once check-remote-mailqs
3622 test_froms
=(testignore@amnimal.ninja testignore@expertpathologyreview.com
)
3623 test_tos
=(testignore@iankelling.org testignore@je.b8.nz
)
3624 # We dont need to send from different addresses to the same
3625 # address. this breaks down our nice elegant logic of building up
3626 # froms and tos , so I just handle expertpath in a special case
3627 # below and set the to: to be testignore@zroe.org. If we did sent
3628 # that way, it would also mess up our mailtest-check logic that
3629 # finds which messages to check.
3630 # for example: from testignore@amnimal.ninja to: testignore@iankelling.org testignore@zroe.org
3631 # that would become 2 messages and we'd only check 1.
3634 test_froms
=(testignore@je.b8.nz
)
3635 test_tos
=(testignore@iankelling.org testignore@zroe.org testignore@expertpathologyreview.com testignore@amnimal.ninja
)
3639 # Dont put these test messages into the sent folder or else it will
3640 # overwhelm it, plus i dont want to save a copy at all.
3641 # Plus addresses we generally want to ignore.
3642 u
/etc
/exim
4/ignore-sent
<<EOF
3643 $(printf "%s\n" ${test_tos[@]})
3644 vojdedIdNejyebni@b8.nz
3648 cat >/usr
/local
/bin
/send-test-forward
<<'EOF'
3650 # we remove from the queue older than 4.3 minutes since we send every 5 minutes.
3652 $(/usr/sbin/exiqgrep -o 260 -i -r '^(testignore@(iankelling\.org|zroe\.org|expertpathologyreview\.com|amnimal\.ninja|je\.b8\.nz)|jtuttle@gnu\.org)$')
3654 if (( ${#olds[@]} )); then
3655 /usr/sbin/exim -Mrm "${olds[@]}" >/dev/null
3658 for test_from
in ${test_froms[@]}; do
3660 test_to
=${test_tos[0]}
3661 for t
in ${test_tos[@]:1}; do
3665 testignore@expertpathologyreview.com
)
3666 test_to
=testignore@zroe.org
3670 cat >>/usr
/local
/bin
/send-test-forward
<<EOFOUTER
3671 /usr/sbin/exim -odf -f $test_from -t <<EOF
3674 Subject: test \$(date +%Y-%m-%dT%H:%M:%S%z) \$EPOCHSECONDS
3676 /usr/local/bin/send-test-forward
3680 m
chmod +x
/usr
/local
/bin
/send-test-forward
3683 soff mailtest-check.service
3684 rm -fv /etc
/cron.d
/mailtest \
3685 /var
/lib
/prometheus
/node-exporter
/mailtest-check.prom
* \
3686 /var
/local
/cron-errors
/check-remote-mailqs
*
3693 m sudo
-u $u mkdir
-p /home
/$u/.cache
3694 set -- /m
/mucache
/home
/$u/.cache
/mu
/m
/.mu
/home
/$u/.mu
3699 if [[ ! -L $f ]]; then
3700 if [[ -e $f ]]; then
3703 m sudo
-u $u ln -sf -T $target $f
3708 # /etc/alias setup is debian specific, and exim postinst script sets up
3709 # an /etc/alias from root to the postmaster, based on the question
3710 # exim4-config exim4/dc_postmaster, as long as there exists an entry for
3711 # root, or there was no preexisting aliases file. postfix won\'t set up
3712 # a root to $postmaster alias if it\'s already installed. Easiest to
3713 # just set it ourselves.
3715 # debconf question for postmaster:
3716 # Mail for the 'postmaster', 'root', and other system accounts needs to be redirected
3717 # to the user account of the actual system administrator.
3718 # If this value is left empty, such mail will be saved in /var/mail/mail, which is not
3720 # Note that postmaster\'s mail should be read on the system to which it is directed,
3721 # rather than being forwarded elsewhere, so (at least one of) the users listed here
3722 # should not redirect their mail off this machine. A 'real-' prefix can be used to
3723 # force local delivery.
3724 # Multiple user names need to be separated by spaces.
3725 # Root and postmaster mail recipient:
3731 # eval: (outline-minor-mode)
3732 # outline-regexp: "\\( *\\)# [*]\\{1,8\\} "
3734 # this is combined with defining outline-level in init.el