3 # Copyright (C) 2019 Ian Kelling
4 # SPDX-License-Identifier: AGPL-3.0-or-later
7 # shellcheck disable=SC2254 # makes for a lot of unneeded quotes
10 # perusing through /el/mainlog without test messages:
11 # &!testignore|jtuttle|
13 #&! testignore|jtuttle|eximbackup|/usr/sbin/exim4 -bpu
15 # todo: check new macro DKIM_TIMESTAMPS
17 # todo: check if REMOTE_SMTP_INTERFACE or REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE can simplify my or fsfs config
19 # todo: max line length macro changed in t11. look into it
20 # todo: check that all macros we use are still valid in t11
22 # todo: setup an alert for bouncing test emails.
24 # todo: bounces to my fsf mail can come from fsf@iankelling.org,
25 # think about making bounces go from the original address.
27 # todo: add a prometheus alert for dovecot.
29 # todo: handle errors like this:
30 # Mar 02 12:44:26 kw systemd[1]: exim4.service: Found left-over process 68210 (exim4) in control group while starting unit. Ignoring.
31 # Mar 02 12:44:26 kw systemd[1]: This usually indicates unclean termination of a previous run, or service implementation deficiencies.
32 #eg: on eggs, on may 1st, ps grep for exim, 2 daemons running. 1 leftover from a month ago
33 #Debian-+ 1954 1 0 36231 11560 4 Apr02 ? 00:40:25 /usr/sbin/exim4 -bd -q30m
34 #Debian-+ 23058 1954 0 36821 10564 0 20:38 ? 00:00:00 /usr/sbin/exim4 -bd -q30m
36 # 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.
37 # todo: consider hardening cups listening on 0.0.0.0
38 # todo: stop/disable local apache, and rpc.mountd, and kdeconnect when not in use.
40 # todo: hosts should only allow external mail that is authed and
41 # destined for backup route. it is a minor issue since traffic is
42 # limited to the wghole network.
44 # todo: emailing info@amnimal.ninja produces a bounce, user doesn't exist
45 # instead of a simple rejection like it should.
47 # todo: run mailping test after running, or otherwise
48 # clear out terminal alert
50 # todo: disable postgrey
52 # todo: in testforward-check, we should also look
54 # todo: test that bounces dont help create valid mailtest-check
56 # todo: move mail stuff in distro-end into this file
58 # todo: consider rotating dkim & publishing key so every past email I sent
59 # isnt necessarily signed
61 # todo: consider how to get clamav out of Debian-exim group
62 # so it cant read/write the whole mail spool, for better
65 # todo: create a cronjob to update or warn on expiring dnssec keys
67 # todo: we should test failed mail daily or so
68 # failed cronjob, failed sysd-log-once,
69 # a local bounce from a cronjob, a local bounce
70 # to a bad remote address, perhaps a local failure
71 # when the sending daemon is down.
72 # And send an alert email if no alerts have been sent
73 # in 2 or 3 days or something. todo, test cron mail on li.
75 # todo: look at mailinabox extra dns records, note these changelogs:
76 # - 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.
77 # - 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.
80 # todo: mailtest-check failure on remote hosts is not going to alert me.
82 # todo: test mail failure as well as success.
84 # todo: validate that mailtest-check is doing dnsbl checks.
86 # background: I want to run exim in a network namespace so it can send
87 # and receive through a vpn. This is needed so it can do ipv6, because
88 # outside the namespace if we dont have ipv6, to send ipv6 through the
89 # vpn, we have to send all our ipv6 through the vpn. I did this for a
90 # long time, it was fine, but it causes various pains, like increased
91 # latency, increased recaptcha because my ip is from a data center, just
92 # various issues I dont want on all the time. The problem with the
93 # namespace is that all kinds of programs want to invoke exim, but they
94 # wont be in the namespace. I could replace exim with a wrapper that
95 # jumps into the namespace, i tried that, it works fine. One remaining
96 # problem was that I would have needed to hook into exim upgrades to
97 # move exim and replace it with my wrapper script. Also, my script to
98 # join the namespace is not super reliable because it uses a pgrep.
99 # Instead, I should have created a systemd service for a process that
100 # will never die and just writes its pid somewhere convenient.
101 # That implementation
105 # user ALL=(ALL) /usr/sbin/exim4
107 # move exim4 to eximian, use this script for exim4:
110 # if ip a show veth1-mail &>/dev/null; then
111 # /usr/sbin/eximian "$@"
115 # if [[ $USER && $USER != root ]]; then
118 # pid=$(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf")
120 # sudo nsenter -t $pid -n -m sudo -u $USER /usr/sbin/eximian "$@"
122 # nsenter -t $pid -n -m /usr/sbin/eximian "$@"
126 # an alternate solution: there is a small setguid program for
127 # network namespaces in my bookmarks.
129 # However, the solution I went with is: have 2 exim
130 # configs. A nonstandard location for the daemon that runs
131 # in the namespace. For all other invocations, it uses
132 # the default config location, which is altered to be
133 # in a smarthost config which sends mail to the deaemon.
135 # I have a bash function, enn to invoke exim like the daemon is running.
136 # and mailbash to just enter its network namespace.
138 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
142 if [[ -s /usr
/local
/lib
/err
]]; then
143 source /usr
/local
/lib
/err
144 elif [[ -s /a
/bin
/errhandle
/err
]]; then
145 source /a
/bin
/errhandle
/err
147 echo "no err tracing script found"
150 source /a
/bin
/distro-functions
/src
/identify-distros
151 source /a
/bin
/distro-functions
/src
/package-manager-abstractions
153 # has nextcloud_admin_pass in it
154 f
=/p
/c
/machine_specific
/$HOSTNAME/mail
156 # shellcheck source=/p/c/machine_specific/bk/mail
161 [[ $EUID == 0 ]] ||
exec sudo
-E "${BASH_SOURCE[0]}" "$@"
163 # note, this is hardcoded in /etc/exim4/conf.d/main/000_local
169 Usage: ${0##*/} anything_here_to_debug
170 Setup exim4 & dovecot & related things
172 -h|--help Print help and exit.
177 # debug output if we pass any arg
183 ####### instructions for icedove #####
184 # Incoming mail server: mail.iankelling.org, port 143, username iank, connection security starttls, authentication method normal password,
185 # then click advanced so it accepts it.
186 # we could also just use 127.0.0.1 with no ssl
188 # hamburger -> preferences -> preferences -> advanced tab -> config editor button -> security.ssl.enable_ocsp_must_staple = false
189 # background: dovecot does not yet have ocsp stapling support
190 # reference: https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921
192 # for phone, k9mail, fdroid, same thing but username alerts, pass in ivy-pass.
193 # also, bk.b8.nz for secondary alerts, username is iank. same alerts pass.
194 # fetching mail settings: folder poll frequency 10 minutes.
195 # account settings, fetching mail, push folders: All. Then disable the persistent notification.
199 # * perstent password instructions
200 # Note: for cert cron, we need to manually run first to accept known_hosts
203 # # for hosts which have all private files I just use the same user
204 # # for other hosts, each one get\'s their own password.
205 # # for generating secure pass, and storing for server too:
208 # apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f
209 # s sed -i "/^$host:/d" /p/c/filesystem/etc/exim4/passwd
210 # echo "$host:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd
211 # #reference: exim4_passwd_client(5)
212 # dir=/p/c/machine_specific/$host/filesystem/etc/exim4
214 # echo "mail.iankelling.org:$host:$(<$f)" > $dir/passwd.client
215 # # then run this script
217 # # dovecot password, i just need 1 as I\'m the only user
218 # mkdir /p/c/filesystem/etc/dovecot
219 # echo "iank:$(doveadm pw -s SHA512-CRYPT)::::::" >>/p/c/filesystem/etc/dovecot/users
221 ####### end perstent password instructions ######
225 # # Remove 1 level of comments in this section, set the domain var
226 # # for the domain you are setting up, then run this and copy dns settings
228 # domain=iankelling.org
229 # c /p/c/filesystem/etc/exim4
230 # # this has several bugs addressed in comments, but it was helpful
231 # # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
233 # openssl genrsa -out $domain-private.pem 2048
234 # # Then, to get the public key strings to put in bind:
236 # # selector is needed for having multiple keys for one domain.
237 # # I dun do that, so just use a static one: li
238 # # Debadmin page does not have v=, fastmail does, and this
239 # # says it\'s recommended in 3.6.1, default is DKIM1 anyways.
240 # # https://www.ietf.org/rfc/rfc6376.txt
241 # # Join and print all but first and last line.
242 # # last line: swap hold & pattern, remove newlines, print.
243 # # lines 2+: append to hold space
244 # echo "bind txt record: remember to truncate $domain so its relative to the bind zone"
246 # a._domainkey.$domain TXT (
247 # "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')" )
249 # # sed explanation: skip the first few lines, then put them into the hold space, then
250 # # on the last line, back to the patern space, remove the newlines, then add a newline
251 # # at the last char - 240, because bind txt records need strings <=255 chars,
252 # # other dkim stuff at the begining is is 25 chars, and the pubkey is 393, so this
253 # # leaves us a bit of extra room at the end and a bunch at the beginning.
255 # # selector was also put into /etc/exim4/conf.d/main/000_local,
259 # # 2017-02 dmarc policies:
260 # # host -t txt _dmarc.gmail.com
261 # # yahoo: p=reject, hotmail: p=none, gmail: p=none, fastmail none for legacy reasons
262 # # there were articles claiming gmail would be changing
263 # # to p=reject, in early 2017, which didn\'t happen. I see no sources on them. It\'s
264 # # expected to cause problems
265 # # with a few old mailing lists, copying theirs for now.
267 # echo "dmarc dns, name: _dmarc value: v=DMARC1; p=none; rua=mailto:mailauth-reports@$domain"
271 # # 2017-02 spf policies:
272 # # host -t txt lists.fedoraproject.org
273 # # google ~all, hotmail ~all, yahoo: ?all, fastmail ?all, outlook ~all
274 # # i include fastmail\'s settings, per their instructions,
275 # # and follow their policy. In mail in a box, or similar instructions,
276 # # I\'ve seen recommended to not use a restrictive policy.
278 # # to check if dns has updated, you do
279 # host -a mesmtp._domainkey.$domain
282 # # setting it to iankelling.org would work the same, but this
283 # # is more flexible, I could change where mail.iankelling.org pointed.
285 # mx records, 2 records each, for * and empty domain
286 # pri 10 mail.iankelling.org
290 # from brc2, run dnsecgen then dsign, update named.local.conf, publish keys to registrar
292 # * functions & constants
295 m
() { printf "$pre %s\n" "$*"; "$@"; }
296 e
() { printf "$pre %s\n" "$*"; }
297 err
() { printf "$pre %s\n" "$*" >&2; exit 1; }
300 # This file is so if we fail in the middle and rerun, we dont lose state
301 if [[ -e /var
/local
/mail-setup-reload
]]; then
304 u
() { # update file. note: duplicated in brc
305 local tmp tmpdir dest
="$1"
306 local base
="${dest##*/}"
307 local dir
="${dest%/*}"
308 if [[ $dir != "$base" ]]; then
309 # dest has a directory component
315 tmp
=$
(rsync
-ic $tmpdir/"$base" "$dest")
319 if [[ $dest == /etc
/systemd
/system
/* ]]; then
320 touch /var
/local
/mail-setup-reload
327 key
="$1" value
="$2" section
="$3"
328 file="/etc/radicale/config"
329 sed -ri "/ *\[$section\]/,/^ *\[[^]]+\]/{/^\s*${key}[[:space:]=]/d};/ *\[$section\]/a $key = $value" "$file"
333 # ignore services that dont exist
334 if systemctl
cat $service &>/dev
/null
; then
335 m systemctl disable
--now $service
342 m systemctl restart
$service
343 # Optimization for exim,
344 # is-enabled: 0m0.015s
346 # It is related to this message:
347 # exim4.service is not a native service, redirecting to systemd-sysv-install.
348 # Executing: /lib/systemd/systemd-sysv-install enable exim4
349 enabled
=$
(systemctl is-enabled
$service 2>/dev
/null ||
:)
350 if [[ $enabled != enabled
]]; then
351 m systemctl
enable $service
356 [[ $HOSTNAME == "$MAIL_HOST" ]]
358 e
() { printf "%s\n" "$*"; }
361 if systemctl is-active
$service >/dev
/null
; then
362 m systemctl restart
$service
368 if systemctl is-active
$service >/dev
/null
; then
369 m systemctl stop
$service
374 mxhost
=mx.iankelling.org
377 # old setup. left as comment for example
378 # mxhost=mail.messagingengine.com
380 # forward=ian@iankelling.org
382 smarthost
="$mxhost::$mxport"
383 uhome
=$
(eval echo ~
$u)
385 # Somehow on one machine, a file got written with 664 perms.
386 # just being defensive here.
389 source /a
/bin
/bash_unpublished
/source-state
390 if [[ ! $MAIL_HOST ]]; then
391 err
"\$MAIL_HOST not set"
397 kd|frodo|x2|x3|kw|sy|bo
)
403 # * Install universal packages
406 # installs epanicclean iptables-exim ip6tables-exim
407 /a
/bin
/ds
/install-my-scripts
409 if [[ $
(debian-codename-compat
) == bionic
]]; then
410 cat >/etc
/apt
/preferences.d
/spamassassin
<<'EOF'
411 Package: spamassassin sa-compile spamc
412 Pin: release n=focal,o=Ubuntu
417 # light version of exim does not have sasl auth support.
418 # note: for bitfolk hosts, unbound has important config with conflink.
419 pi-nostart exim4 exim4-daemon-heavy spamassassin unbound clamav-daemon wireguard
421 # note: pyzor debian readme says you need to run some initialization command
423 pi spf-tools-perl p0f postgrey pyzor razor jq moreutils certbot fail2ban
426 # not included due to using wireguard: openvpn
427 *) pi wget git
unzip iptables
;;
429 # bad packages that sometimes get automatically installed
430 pu openresolv resolvconf
435 if [[ $
(debian-codename
) == etiona
]]; then
436 # ip6tables stopped loading on boot. openvpn has reduced capability set,
437 # so running iptables as part of openvpn startup wont work. This should do it.
438 pi iptables-persistent
439 cat >/etc
/iptables
/rules.v6
<<'EOF'
446 m ip6tables
-S >/dev
/null
449 # our nostart pi fails to avoid enabling
452 # * Mail clean cronjob
454 u
/etc
/systemd
/system
/mailclean.timer
<<'EOF'
456 Description=Run mailclean daily
462 WantedBy=timers.target
465 u
/etc
/systemd
/system
/mailclean.service
<<EOF
467 Description=Delete and archive old mail files
468 After=multi-user.target
473 ExecStart=/usr/local/bin/sysd-mail-once mailclean /a/bin/distro-setup/mailclean
479 u
/etc
/default
/postgrey
<<'EOF'
480 POSTGREY_OPTS="--exim --unix=/var/run/postgrey/postgrey.sock --retry-window=4 --max-age=60"
485 m usermod
-a -G Debian-exim clamav
487 u
/etc
/systemd
/system
/clamav-daemon.service.d
/fix.conf
<<EOF
489 ExecStartPre=-/bin/mkdir -p /var/run/clamav
490 ExecStartPre=/bin/chown clamav /var/run/clamav
496 #vpnser=mailvpn.service
497 # note: this hangs if it cant resolv the endpoint. we
498 # want it to just retry in the background. i just use a static ip instead.
500 # Note: at least on t10, on reboot, the service fails to come up according to systemd, but
501 # in reality it is up and working, then it tries to restart infinitely, and fails
502 # because it detects that the interface exists.
506 # Aug 02 21:59:27 sy wg-quick[2092]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
507 # Aug 02 21:59:27 sy wg-quick[2248]: [#] iptables-restore -n
508 # 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?
509 # Aug 02 21:59:27 sy wg-quick[2259]: [#] iptables-restore -n
510 # 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?
511 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=4/NOPERMISSION
515 # Aug 03 14:12:47 sy wg-quick[711336]: [#] sysctl -q net.ipv4.conf.all.src_valid_mark=1
516 # Aug 03 14:12:47 sy wg-quick[711384]: [#] iptables-restore -n
517 # Aug 03 14:12:47 sy wg-quick[711336]: [#] ping -w10 -c1 10.8.0.1 ||:
518 # Aug 03 14:12:47 sy wg-quick[711389]: PING 10.8.0.1 (10.8.0.1) 56(84) bytes of data.
519 # 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
520 # Aug 03 14:12:47 sy wg-quick[711389]: --- 10.8.0.1 ping statistics ---
521 # Aug 03 14:12:47 sy wg-quick[711389]: 1 packets transmitted, 1 received, 0% packet loss, time 0ms
522 # Aug 03 14:12:47 sy wg-quick[711389]: rtt min/avg/max/mdev = 72.993/72.993/72.993/0.000 ms
523 # Aug 03 14:12:47 sy systemd[1]: Finished WireGuard via wg-quick(8) for wgmail.
524 # Aug 02 21:59:27 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
525 # Aug 02 21:59:27 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
526 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Scheduled restart job, restart counter is at 1.
527 # Aug 02 21:59:47 sy systemd[1]: Stopped WireGuard via wg-quick(8) for wgmail.
528 # Aug 02 21:59:47 sy systemd[1]: Starting WireGuard via wg-quick(8) for wgmail...
529 # Aug 02 21:59:47 sy wg-quick[3424]: wg-quick: `wgmail' already exists
530 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Main process exited, code=exited, status=1/FAILURE
531 # Aug 02 21:59:47 sy systemd[1]: wg-quick@wgmail.service: Failed with result 'exit-code'.
532 # Aug 02 21:59:47 sy systemd[1]: Failed to start WireGuard via wg-quick(8) for wgmail.
535 # According to iptables -S and iptables -t nat -S,
536 # there are no modifications to iptables rules on a succsfull run,
539 vpnser
=wg-quick@wgmail.service
543 rsync
-aiSAX --chown=root
:root
--chmod=g-s
/p
/c
/filesystem
/etc
/wireguard
/ /etc
/wireguard
544 bindpaths
="/etc/127.0.0.1-resolv:/run/systemd/resolve /etc/basic-nsswitch:/etc/resolved-nsswitch:norbind"
547 bindpaths
="/etc/10.173.8.1-resolv:/etc/127.0.0.1-resolv"
550 d
=/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/wireguard
/
552 rsync
-aiSAX --chown=root
:root
--chmod=g-s
$d /etc
/wireguard
560 u
/etc
/systemd
/system
/wg-quick@wgmail.service.d
/override.conf
<<EOF
562 Requires=mailnn.service
563 JoinsNamespaceOf=mailnn.service
564 BindsTo=mailnn.service
565 StartLimitIntervalSec=0
569 # i dont think we need any of these, but it doesnt hurt to stay consistent
579 # https://selivan.github.io/2017/12/30/systemd-serice-always-restart.html
580 u
/etc
/systemd
/system
/mailvpn.service
<<EOF
582 Description=OpenVPN tunnel for mail
583 After=syslog.target network-online.target mailnn.service
584 Wants=network-online.target
585 Documentation=man:openvpn(8)
586 Documentation=https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
587 Documentation=https://community.openvpn.net/openvpn/wiki/HOWTO
588 # needed to continually restatr
589 JoinsNamespaceOf=mailnn.service
590 BindsTo=mailnn.service
591 StartLimitIntervalSec=0
595 RuntimeDirectory=openvpn-client
596 RuntimeDirectoryMode=0710
597 WorkingDirectory=/etc/openvpn/client
598 ExecStart=/usr/sbin/openvpn --suppress-timestamps --nobind --config /etc/openvpn/client/mail.conf
599 #CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_ADMIN CAP_NET_RAW CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_DAC_OVERRIDE
601 # DeviceAllow=/dev/null rw
602 # DeviceAllow=/dev/net/tun rw
604 # in the network namespace, we cant connect to systemd-resolved on 127.0.0.53,
606 # https://unix.stackexchange.com/questions/445782/how-to-allow-systemd-resolved-to-listen-to-an-interface-other-than-loopback
607 # there is a workaround there, but i dont think its really worth it,
608 # the mail server is fine with a static dns anyways.
609 # This thread is also interesting,
610 # https://github.com/slingamn/namespaced-openvpn/issues/7
611 # todo: the iptables rule at the bottom could be useful to prevent
612 # dns from leaking in my network namespaced vpn.
613 # I also like the idea of patching systemd-resolved so it
614 # will listen on other interfaces, but its not worth my time.
617 # time to sleep before restarting a service
621 WantedBy=multi-user.target
624 u
/etc
/systemd
/system
/mailnnroute.service
<<'EOF'
626 Description=Network routing for mailnn
627 After=syslog.target network-online.target mailnn.service
628 Wants=network-online.target
629 JoinsNamespaceOf=mailnn.service
630 BindsTo=mailnn.service
631 StartLimitIntervalSec=0
637 ExecStart=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns -n 10.173.8 start mail
638 ExecStop=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns stop mail
644 WantedBy=multi-user.target
648 u
/etc
/systemd
/system
/mailnn.service
<<'EOF'
650 Description=Network Namespace for mail vpn service that will live forever and cant fail
651 After=syslog.target network-online.target
652 Wants=network-online.target
657 ExecStart=/bin/sleep infinity
660 WantedBy=multi-user.target
663 u
/etc
/systemd
/system
/mailbindwatchdog.service
<<EOF
665 Description=Watchdog to restart services relying on systemd-resolved dir
666 After=syslog.target network-online.target
667 Wants=network-online.target
668 BindsTo=mailnn.service
672 ExecStart=/usr/local/bin/mailbindwatchdog $vpnser ${nn_progs[@]} unbound.service radicale.service
674 # time to sleep before restarting a service
678 WantedBy=multi-user.target
684 rm -fv /etc
/systemd
/system
/openvpn-client-mail@.service
686 # We use a local unbound because systemd-resolved wont accept our
687 # request, it will only listen to 127.0.0.53 in the main network
688 # namespace, and rejected feature requests to change that (although I
689 # could change the code and recompile), but anyways, that could answer
690 # with things specific to the lan that aren't applicable in this
691 # namespace, and since unbound is a recursive resolver, it means we just
692 # use our own ip against dnsbl rate limits.
694 # If we ever notice this change, chattr +i on it
695 # trust-ad is used in t10+, glibc 2.31
697 u
/etc
/127.0.0.1-resolv/stub-resolv.conf
<<'EOF'
699 options edns0 trust-ad
702 u
/etc
/127.0.0.53-resolv/stub-resolv.conf
<<'EOF'
703 nameserver 127.0.0.53
704 options edns0 trust-ad
708 u
/etc
/10.173.8.1-resolv/stub-resolv.conf
<<'EOF'
709 nameserver 10.173.8.1
710 options edns0 trust-ad
713 # this is just a bug fix for trisquel.
714 f
=/etc
/apparmor.d
/usr.sbin.unbound
715 line
="/usr/sbin/unbound flags=(attach_disconnected) {"
716 if ! grep -qFx "$line" $f; then
717 badline
="/usr/sbin/unbound {"
718 if ! grep -qFx "$badline" $f; then
719 err expected line
in $f not found
721 sed -i "s,^$badline$,$line," $f
722 if systemctl is-active apparmor
&>/dev
/null
; then
723 m systemctl reload apparmor
727 # note: anything added to nn_progs needs corresponding rm
728 # down below in the host switch
731 # Note dovecots lmtp doesnt need to be in the same nn to accept delivery.
732 # Its in the nn so remote clients can connect to it.
733 nn_progs
+=(spamassassin dovecot
)
738 # todo, should this be after vpn service
739 u
/etc
/systemd
/system
/unbound.service.d
/nn.conf
<<EOF
742 JoinsNamespaceOf=mailnn.service
743 BindsTo=mailnn.service
744 StartLimitIntervalSec=0
748 # note the nsswitch bind is actually not needed for bk, but
749 # its the same file so it does no harm.
756 # sooo, there are a few ways to get traffic from the mail network
757 # namespace to go over the wghole.
759 #1: unify the mail vpn and wghole
760 # into 1 network. this seems simple and logical, so I'm doing it.
761 # One general downside is tying things together, if I need to mess
762 # with one thing, it breaks the other. Oh well for now.
764 # 2. We can route 10.5.3.0/24 out of the mail nn and nat it into wghole.
766 # 3. We can setup the routing to happen on li, which seemed like I
767 # just needed to add 10.8.0.4/24 to AllowedIPs in at least the
768 # wghole clients, but I think that is kind of hacky and breaks ipv4
769 # routing within the mailvpn, it happened to work just because exim
770 # prefers ipv6 and that was also available in the mailvpn.
772 # 4. Put the hole interface into the mail network namespace. This
773 # doesn't work if the mail vpn is wg. For openvpn, it bypasses the
774 # vpn routing and establishes a direct connection. I only use the
775 # hole vpn for randomish things, it should be fine to join the mail
776 # nn for that. There should be some way to fix the routing issue
777 # by doing manual routing, but that doesn't seem like a good use of time.
779 # https://www.wireguard.com/netns/#
781 # for wireguard debugging
782 # echo module wireguard +p > /sys/kernel/debug/dynamic_debug/control
787 for unit
in ${nn_progs[@]}; do
788 u
/etc
/systemd
/system
/$unit.service.d
/nn.conf
<<EOF
791 # Wants appears better than requires because with requires,
792 # if the vpnser fails to start, this service won't get run at
793 # all, even if the vpnser starts on an automatic restart.
796 After=network.target mailnn.service $vpnser
797 JoinsNamespaceOf=mailnn.service
798 BindsTo=mailnn.service
799 StartLimitIntervalSec=0
803 # note the nsswitch bind is actually not needed for bk, but
804 # its the same file so it does no harm.
813 for unit
in exim4 spamassassin dovecot unbound
; do
814 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
823 # * wghole (another mail vpn)
826 u
/etc
/systemd
/system
/wg-quick@wghole.service.d
/override.conf
<<'EOF'
828 StartLimitIntervalSec=0
836 # * spamassassin config
837 u
/etc
/sysctl.d
/80-iank-mail.conf
<<'EOF'
839 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 120
845 u
/etc
/spamassassin
/mylocal.cf
<<'EOF'
846 # this is mylocal.cf because the normal local.cf has a bunch of upstream stuff i dont want to mess with
848 # /usr/share/doc/exim4-base/README.Debian.gz:
849 # SpamAssassin's default report should not be used in a add_header
850 # statement since it contains empty lines. (This triggers e.g. Amavis'
851 # warning "BAD HEADER SECTION, Improper folded header field made up
852 # entirely of whitespace".) This is a safe, terse alternative:
853 clear_report_template
854 report (_SCORE_ / _REQD_ requ) _TESTSSCORES(,)_ autolearn=_AUTOLEARN
855 uridnsbl_skip_domain iankelling.org
856 uridnsbl_skip_domain amnimal.ninja
857 uridnsbl_skip_domain expertpathologyreview.com
858 uridnsbl_skip_domain zroe.org
861 # 2020-10-19 remove old file. remove this when all hosts updated
862 rm -fv /etc
/systemd
/system
/spamddnsfix.
{timer
,service
}
864 u
/etc
/default
/spamassassin
<<'EOF'
865 # defaults plus debugging flags for an issue im having
866 OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
867 PIDFILE="/var/run/spamd.pid"
869 NICE="--nicelevel 15"
872 ##### end spamassassin config
878 ## needed only for openvpn mail vpn.
879 # if [[ -e /p/c/filesystem ]]; then
880 # # note, man openvpn implies we could just call mail-route on vpn startup/shutdown with
881 # # systemd, buuut it can remake the tun device unexpectedly, i got this in the log
882 # # after my internet was down for a bit:
883 # # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device.
884 # m /a/exe/vpn-mk-client-cert -b mailclient -n mail li.iankelling.org
887 # With openvpn, I didn't get around to persisting the openvpn
888 # cert/configs into /p/c/machine_specific/bk, so I had this case to
889 # manually get the cert. However, we aren't using openvpn anymore, so it
894 # if [[ ! -e /etc/openvpn/client/mail.conf ]]; then
895 # echo "$0: error: first, on a system with /p/c/filesystem, run mail-setup, or the vpn-mk-client-cert line above this err" 2>&2
901 m rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/mail-cert-cron
/usr
/local
/bin
903 u
/etc
/systemd
/system
/mailcert.service
<<'EOF'
905 Description=Mail cert rsync
906 After=multi-user.target
910 ExecStart=/usr/local/bin/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron
912 u
/etc
/systemd
/system
/mailcert.timer
<<'EOF'
914 Description=Run mail-cert once a day
920 WantedBy=timers.target
924 wghost
=${HOSTNAME}wg.b8.nz
925 if $bhost_t && [[ ! -e /etc
/exim
4/certs
/$wghost/privkey.pem
]]; then
926 certbot
-n --manual-public-ip-logging-ok --eff-email --agree-tos -m letsencrypt@iankelling.org \
927 certonly
--manual --preferred-challenges=dns \
928 --manual-auth-hook /a
/bin
/ds
/le-dns-challenge \
929 --manual-cleanup-hook /a
/bin
/ds
/le-dns-challenge-cleanup \
930 --deploy-hook /a
/bin
/ds
/le-exim-deploy
-d $wghost
935 # todo: test that these configs actually work, eg run
937 # and see someone is banned.
939 sed 's/^ *before *= *iptables-common.conf/before = iptables-common-exim.conf/' \
940 /etc
/fail2ban
/action.d
/iptables-multiport.conf| u
/etc
/fail2ban
/action.d
/iptables-exim.conf
941 u
/etc
/fail2ban
/action.d
/iptables-common-exim.conf
<<'EOF'
942 # iank: same as iptables-common, except iptables is iptables-exim, ip6tables is ip6tables-exim
944 # Fail2Ban configuration file
946 # Author: Daniel Black
948 # This is a included configuration file and includes the definitions for the iptables
949 # used in all iptables based actions by default.
951 # The user can override the defaults in iptables-common.local
953 # Modified: Alexander Koeppe <format_c@online.de>, Serg G. Brester <serg.brester@sebres.de>
954 # made config file IPv6 capable (see new section Init?family=inet6)
958 after = iptables-blocktype.local
959 iptables-common.local
960 # iptables-blocktype.local is obsolete
964 # Option: actionflush
965 # Notes.: command executed once to flush IPS, by shutdown (resp. by stop of the jail or this action)
968 actionflush = <iptables> -F f2b-<name>
974 # Notes specifies the iptables chain to which the Fail2Ban rules should be
976 # Values: STRING Default: INPUT
979 # Default name of the chain
984 # Notes.: specifies port to monitor
985 # Values: [ NUM | STRING ] Default:
990 # Notes.: internally used by config reader for interpolations.
991 # Values: [ tcp | udp | icmp | all ] Default: tcp
996 # Note: This is what the action does with rules. This can be any jump target
997 # as per the iptables man page (section 8). Common values are DROP
998 # REJECT, REJECT --reject-with icmp-port-unreachable
1000 blocktype = REJECT --reject-with icmp-port-unreachable
1002 # Option: returntype
1003 # Note: This is the default rule on "actionstart". This should be RETURN
1004 # in all (blocking) actions, except REJECT in allowing actions.
1008 # Option: lockingopt
1009 # Notes.: Option was introduced to iptables to prevent multiple instances from
1010 # running concurrently and causing irratic behavior. -w was introduced
1011 # in iptables 1.4.20, so might be absent on older systems
1012 # See https://github.com/fail2ban/fail2ban/issues/1122
1017 # Notes.: Actual command to be executed, including common to all calls options
1019 iptables = /usr/local/bin/iptables-exim <lockingopt>
1024 # Option: blocktype (ipv6)
1025 # Note: This is what the action does with rules. This can be any jump target
1026 # as per the iptables man page (section 8). Common values are DROP
1027 # REJECT, REJECT --reject-with icmp6-port-unreachable
1029 blocktype = REJECT --reject-with icmp6-port-unreachable
1031 # Option: iptables (ipv6)
1032 # Notes.: Actual command to be executed, including common to all calls options
1034 iptables = /usr/local/bin/ip6tables-exim <lockingopt>
1037 u
/etc
/fail2ban
/jail.d
/exim.
local <<'EOF'
1042 banaction = iptables-exim
1044 # 209.51.188.13 = mail.fsf.org
1045 # 2001:470:142::13 = mail.fsf.org
1046 # 209.51.188.92 = eggs.gnu.org
1047 # 2001:470:142:3::10 = eggs.gnu.org
1048 # 72.14.176.105 2600:3c00:e000:280::2 = mail.iankelling.org
1049 # 10.173.8.1 = non-nn net
1050 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
1053 m systemctl restart fail2ban
1056 # * common exim4 config
1059 ## old, not using forward files anymore
1060 rm -fv $uhome/.forward
/root
/.forward
1063 # Make all system users be aliases. preventative
1064 # prevents things like cron mail for user without alias
1065 awk 'BEGIN { FS = ":" } ; $6 !~ /^\/home/ || $7 ~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1066 if [[ ! $user ]]; then
1069 if ! grep -q "^$user:" /etc
/aliases
; then
1070 echo "$user: root" |m
tee -a /etc
/aliases
1075 awk 'BEGIN { FS = ":" } ; $6 ~ /^\/home/ && $7 !~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
1078 sed -i "/^user:/d" /etc
/aliases
1081 if ! grep -q "^$user:" /etc
/aliases
; then
1082 echo "$user: root" |m
tee -a /etc
/aliases
1089 .
/a
/bin
/bash_unpublished
/priv-mail-setup
1092 m gpasswd
-a iank adm
#needed for reading logs
1094 ### make local bounces go to normal maildir
1095 # local mail that bounces goes to /Maildir or /root/Maildir
1096 dirs=(/m
/md
/bounces
/{cur
,tmp
,new
})
1097 m mkdir
-p ${dirs[@]}
1098 m chown iank
:iank
/m
/m
/md
1099 m
ln -sfT /m
/md
/m
/iank
1100 m
chmod 771 /m
/m
/md
1101 m chown
-R $u:Debian-exim
/m
/md
/bounces
1102 m
chmod 775 ${dirs[@]}
1103 m usermod
-a -G Debian-exim
$u
1104 for d
in /Maildir
/root
/Maildir
; do
1105 if [[ ! -L $d ]]; then
1108 m
ln -sf -T /m
/md
/bounces
$d
1111 # dkim, client passwd file
1112 files
=(/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/exim
4/*)
1113 f
=/p
/c
/filesystem
/etc
/exim
4/passwd.client
1114 if [[ -e $f ]]; then
1117 if (( ${#files[@]} )); then
1118 m rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 \
1119 ${files[@]} /etc
/exim4
1122 # By default, only 10 days of logs are kept. increase that.
1123 # And dont compress, I look back at logs too often and
1124 # dont need the annoyance of decompressing them all the time.
1125 m
sed -ri '/^\s*compress\s*$/d;s/^(\s*rotate\s).*/\11000/' /etc
/logrotate.d
/exim4-base
1126 files
=(/var
/log
/exim
4/*.gz
)
1127 if (( ${#files[@]} )); then
1131 ## disabled. not using .forward files, but this is still interesting
1133 # ## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost
1134 # # i only need .forwards, so just doing that one.
1135 # cd /etc/exim4/conf.d/router
1136 # b=userforward_higher_priority
1137 # # replace the router name so it is unique
1138 # sed -r s/^\\S+:/$b:/ 600_exim4-config_userforward >175_$b
1139 rm -fv /etc
/exim
4/conf.d
/router
/175_userforward_higher_priority
1141 # todo, consider 'separate' in etc/exim4.conf, could it help on busy systems?
1143 # alerts is basically the postmaster address
1144 m
sed -i --follow-symlinks -f - /etc
/aliases
<<EOF
1145 \$a root: alerts@iankelling.org
1149 cat >/etc
/exim
4/conf.d
/rewrite
/34_iank_rewriting
<<'EOF'
1150 ncsoft@zroe.org graceq2323@gmail.com hE
1154 rm -fv /etc
/exim
4/conf.d
/retry
/37_retry
1156 cat >/etc
/exim
4/conf.d
/retry
/17_retry
<<'EOF'
1157 # Retry fast for my own domains
1158 iankelling.org * F,1d,1m;F,14d,1h
1159 amnimal.ninja * F,1d,1m;F,14d,1h
1160 expertpathologyreview.com * F,1d,1m;F,14d,1h
1161 je.b8.nz * F,1d,1m;F,14d,1h
1162 zroe.org * F,1d,1m;F,14d,1h
1163 eximbackup.b8.nz * F,1d,1m;F,14d,1h
1165 # The spec says the target domain will be used for temporary host errors,
1166 # but i've found that isn't correct, the hostname is required
1167 # at least sometimes.
1168 nn.b8.nz * F,1d,1m;F,14d,1h
1169 defaultnn.b8.nz * F,1d,1m;F,14d,1h
1170 mx.iankelling.org * F,1d,1m;F,14d,1h
1171 bk.b8.nz * F,1d,1m;F,14d,1h
1172 eggs.gnu.org * F,1d,1m;F,14d,1h
1173 fencepost.gnu.org * F,1d,1m;F,14d,1h
1175 # afaik our retry doesnt need this, but just using everything
1176 mx.amnimal.ninja * F,1d,1m;F,14d,1h
1177 mx.expertpathologyreview.com * F,1d,1m;F,14d,1h
1180 mail.fsf.org * F,1d,15m;F,14d,1h
1184 rm -vf /etc
/exim
4/conf.d
/main
/000_localmacros
# old filename
1186 # separate file so without quoted EOF for convenience
1187 cat >/etc
/exim
4/conf.d
/main
/000_local2
<<EOF
1188 # normally empty, I set this so I can set the envelope address
1189 # when doing mail redelivery to invoke filters. Also allows
1190 # me exiqgrep and stuff.
1191 MAIN_TRUSTED_GROUPS = $u
1196 for f
in *-private.pem
; do
1197 echo ${f%-private.pem}
1199 } | u
/etc
/exim
4/conf.d
/my-dkim-domains
1201 rm -f /etc
/exim
4/conf.d
/transport
/11_iank
1203 cat >/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1204 MAIN_TLS_ENABLE = true
1206 # require tls connections for all smarthosts
1207 REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS = ! nn.b8.nz
1208 REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS = nn.b8.nz
1210 # debian exim config added this in 2016 or so?
1211 # it's part of the smtp spec, to limit lines to 998 chars
1212 # but a fair amount of legit mail does not adhere to it. I don't think
1213 # this should be default, like it says in
1214 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=828801
1215 # todo: the bug for introducing this was about headers, but
1216 # the fix maybe is for all lines? one says gmail rejects, the
1217 # other says gmail does not reject. figure out and open a new bug.
1218 IGNORE_SMTP_LINE_LENGTH_LIMIT = true
1220 # more verbose logs. used to use +all, but made it less for more efficiency.
1221 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
1223 # Based on spec, seems like a good idea to be nice.
1224 smtp_return_error_details = true
1226 # default is 10. when exim has been down for a bit, fsf mailserver
1227 # will do a big send in one connection, then exim decides to put
1228 # the messages in the queue instead of delivering them, to avoid
1229 # spawning too many delivery processes. This is the same as the
1230 # fsfs value. And the corresponding one for how many messages
1231 # to send out in 1 connection remote_max_parallel = 256
1232 smtp_accept_queue_per_connection = 500
1235 DKIM_CANON = relaxed
1239 # The file is based on the outgoing domain-name in the from-header.
1240 # sign if key exists
1241 DKIM_PRIVATE_KEY = ${if exists{/etc/exim4/${dkim_domain}-private.pem} {/etc/exim4/${dkim_domain}-private.pem}}
1243 # most of the ones that gmail seems to use.
1244 # Exim has horrible default of signing unincluded
1245 # list- headers since they got mentioned in an
1246 # rfc, but this messes up mailing lists, like gnu/debian which want to
1247 # keep your dkim signature intact but add list- headers.
1248 DKIM_SIGN_HEADERS = mime-version:in-reply-to:references:from:date:subject:to
1250 domainlist local_hostnames = ! je.b8.nz : ! bk.b8.nz : *.b8.nz : b8.nz
1252 hostlist iank_trusted = <; \
1256 72.14.176.105 ; 2600:3c00::f03c:91ff:fe6d:baf8 ; \
1257 # li_vpn_net li_vpn_net_ip6s
1258 10.8.0.0/24; 2600:3c00:e000:280::/64 ; 2600:3c00:e002:3800::/56 ; \
1260 85.119.83.50 ; 2001:ba8:1f1:f0c9::2 ; \
1262 85.119.82.128 ; 2001:ba8:1f1:f09d::2 ; \
1263 # fsf_mit_net fsf_mit_net_ip6 fsf_net fsf_net_ip6 fsf_office_net
1264 18.4.89.0/24 ; 2603:3005:71a:2e00::/64 ; 209.51.188.0/24 ; 2001:470:142::/48 ; 74.94.156.208/28
1267 # this is the default delay_warning_condition, plus matching on local_domains.
1268 # If I have some problem with my local system that causes delayed delivery,
1269 # I dont want to send warnings out to non-local domains.
1270 delay_warning_condition = ${if or {\
1271 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} }\
1272 { match{$h_precedence:}{(?i)bulk|list|junk} }\
1273 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} }\
1274 { match_domain{$domain}{+local_domains} }\
1278 # enable 587 in addition to the default 25, so that
1279 # i can send mail where port 25 is firewalled by isp
1280 daemon_smtp_ports = 25 : 587 : 10025
1281 # default of 25, can get stuck when catching up on mail
1282 smtp_accept_max = 400
1283 smtp_accept_reserve = 100
1284 smtp_reserve_hosts = +iank_trusted
1286 # Rules that make receiving more liberal should be on backup hosts
1287 # so that we dont reject mail accepted by MAIL_HOST
1288 LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE = /etc/exim4/conf.d/local_deny_exceptions_acl
1291 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show exim4)" ge
4.94; then
1292 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1293 # In t11, we cant do the old anymore because this is tainted data used in a file lookup.
1294 # /usr/share/doc/exim4/NEWS.Debian.gz suggests to use lookups to untaint data.
1295 DKIM_DOMAIN = ${lookup {${domain:$rh_from:}}lsearch,ret=key{/etc/exim4/conf.d/my-dkim-domains}}
1298 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<'EOF'
1300 # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
1301 # and its best for this to align https://tools.ietf.org/html/rfc7489#page-8
1302 # There could be some circumstance when the
1303 # from: isnt our domain, but the envelope sender is
1304 # and so still want to sign, but I cant think of any case.
1305 DKIM_DOMAIN = ${lc:${domain:$rh_from:}}
1309 rm -fv /etc
/exim
4/rcpt_local_acl
# old path
1311 u
/etc
/exim
4/conf.d
/local_deny_exceptions_acl
<<'EOF'
1312 # This acl already exists in rcpt, this just makes it more widespread.
1313 # See the comment there for its rationale. The reason it needs to be
1314 # more widespread is that I've turned on sender verification, but cron
1315 # emails can fail sender verification since I may be in a network that
1316 # doesn't have my local dns.
1320 # i setup a local programs smtp to mail.iankelling.org, this
1321 # skips sender verification for it.
1326 rm -fv /etc
/exim
4/data_local_acl
# old path
1328 u
/etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
1329 # Except for the "condition =", this was
1330 # a comment in the check_data acl. The comment about this not
1331 # being suitable has been changed in newer exim versions. The only thing
1332 # related I found was to
1333 # add the condition =, cuz spamassassin has problems with big
1334 # messages and spammers don't bother with big messages,
1335 # but I've increased the size from 10k
1336 # suggested in official docs, and 100k in the wiki example because
1337 # those docs are rather old and I see a 110k spam message
1338 # pretty quickly looking through my spam folder.
1341 !hosts = +iank_trusted
1342 remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : X-Spam_report
1345 !hosts = +iank_trusted
1346 # Smarthosts connect with residential ips and thus get flagged as spam if we do a spam check.
1347 !authenticated = plain_server:login_server
1348 condition = ${if < {$message_size}{5000K}}
1349 spam = Debian-exim:true
1350 add_header = X-Spam_score_int: $spam_score_int
1351 add_header = X-Spam_score: $spam_score
1352 add_header = X-Spam_bar: $spam_bar
1353 add_header = X-Spam_report: $spam_report
1354 add_header = X-Spam_action: $spam_action
1358 # spf = pass:fail:softfail:none:neutral:permerror:temperror
1359 # dmarc_status = reject:quarantine
1360 # add_header = Reply-to: dmarctest@iankelling.org
1366 rm -fv /etc
/exim
4/conf.d
/router
/8{8,9}0_backup_copy \
1367 /etc
/exim
4/conf.d
/router
/865_backup_redir \
1368 /etc
/exim
4/conf.d
/router
/870_backup_local
1370 # It is important for this to exist everywhere except in MAIL_HOST
1371 # non-nn config. Previously, just had it in the nn-config on MAIL_HOST,
1372 # but that is a problem if we change mail host and still have something
1373 # in the queue which was destined for this router, but hosts were
1374 # unreachable, the routers will be reevaluated on the next retry.
1375 u
/etc
/exim
4/conf.d
/router
/170_backup_copy
<<EOF
1376 ### router/900_exim4-config_local_user
1377 #################################
1380 driver = manualroute
1381 domains = eximbackup.b8.nz
1382 transport = backup_remote
1383 ignore_target_hosts = ${HOSTNAME}wg.b8.nz
1384 # note changes here also require change in passwd.client
1385 route_list = * eximbackup.b8.nz
1386 same_domain_copy_routing = yes
1387 errors_to = alerts@iankelling.org
1392 # exim4-config transports are the same as default except for
1393 # message_linelength_limit = 2097152
1395 # TODO: copy the defaults into their own file, and setup a cronjob so
1396 # that if file.dpkg-dist shows up, and it is different, we get an alert.
1398 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp_smarthost
<<'EOF'
1399 ### transport/30_exim4-config_remote_smtp_smarthost
1400 #################################
1402 # This transport is used for delivering messages over SMTP connections
1403 # to a smarthost. The local host tries to authenticate.
1404 # This transport is used for smarthost and satellite configurations.
1406 remote_smtp_smarthost:
1407 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1409 message_linelength_limit = 2097152
1411 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1413 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1417 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1418 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1420 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1421 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1423 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1424 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1426 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1427 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1429 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1430 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1432 .ifdef REMOTE_SMTP_RETURN_PATH
1433 return_path = REMOTE_SMTP_RETURN_PATH
1435 .ifdef REMOTE_SMTP_HELO_DATA
1436 helo_data=REMOTE_SMTP_HELO_DATA
1438 .ifdef TLS_DH_MIN_BITS
1439 tls_dh_min_bits = TLS_DH_MIN_BITS
1441 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1442 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1444 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1445 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1447 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1448 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1450 .ifdef REMOTE_SMTP_SMARTHOST_PROTOCOL
1451 protocol = REMOTE_SMTP_SMARTHOST_PROTOCOL
1455 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_remote_smtp
<<'EOF'
1456 ### transport/30_exim4-config_remote_smtp
1457 #################################
1458 # This transport is used for delivering messages over SMTP connections.
1461 debug_print = "T: remote_smtp for $local_part@$domain"
1463 message_linelength_limit = 2097152
1464 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1465 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1467 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1468 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1470 .ifdef REMOTE_SMTP_RETURN_PATH
1471 return_path = REMOTE_SMTP_RETURN_PATH
1473 .ifdef REMOTE_SMTP_HELO_DATA
1474 helo_data=REMOTE_SMTP_HELO_DATA
1476 .ifdef REMOTE_SMTP_INTERFACE
1477 interface = REMOTE_SMTP_INTERFACE
1480 dkim_domain = DKIM_DOMAIN
1482 .ifdef DKIM_IDENTITY
1483 dkim_identity = DKIM_IDENTITY
1485 .ifdef DKIM_SELECTOR
1486 dkim_selector = DKIM_SELECTOR
1488 .ifdef DKIM_PRIVATE_KEY
1489 dkim_private_key = DKIM_PRIVATE_KEY
1492 dkim_canon = DKIM_CANON
1495 dkim_strict = DKIM_STRICT
1497 .ifdef DKIM_SIGN_HEADERS
1498 dkim_sign_headers = DKIM_SIGN_HEADERS
1500 .ifdef DKIM_TIMESTAMPS
1501 dkim_timestamps = DKIM_TIMESTAMPS
1503 .ifdef TLS_DH_MIN_BITS
1504 tls_dh_min_bits = TLS_DH_MIN_BITS
1506 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1507 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1509 .ifdef REMOTE_SMTP_PRIVATEKEY
1510 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1512 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1513 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1515 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1516 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1521 u
/etc
/exim
4/conf.d
/transport
/30_backup_remote
<<'EOF'
1525 message_linelength_limit = 2097152
1526 hosts_require_auth = *
1529 # manual return path because we want it to be the envelope sender
1530 # we got not the one we are using in this smtp transport
1531 headers_add = "Return-path: $sender_address"
1532 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1533 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1535 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1536 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1538 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1539 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1541 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1542 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1544 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1545 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1547 .ifdef REMOTE_SMTP_HELO_DATA
1548 helo_data=REMOTE_SMTP_HELO_DATA
1550 .ifdef TLS_DH_MIN_BITS
1551 tls_dh_min_bits = TLS_DH_MIN_BITS
1553 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1554 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1556 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1557 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1559 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1560 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1564 u
/etc
/exim
4/conf.d
/router
/900_exim4-config_local_user
<<'EOF'
1565 ### router/900_exim4-config_local_user
1566 #################################
1568 # This router matches local user mailboxes. If the router fails, the error
1569 # message is "Unknown user".
1571 debug_print = "R: local_user for $local_part@$domain"
1573 domains = +local_domains
1574 # ian: default file except where mentioned.
1575 # ian: commented this. I get all local parts. for bk, an rcpt
1576 # check handles checking with dovecot, and the only router
1577 # after this is root.
1578 # local_parts = ! root
1579 transport = LOCAL_DELIVERY
1580 cannot_route_message = Unknown user
1581 # ian: added for + addressing.
1582 local_part_suffix = +*
1583 local_part_suffix_optional
1585 u
/etc
/exim
4/conf.d
/transport
/30_exim4-config_dovecot_lmtp
<<'EOF'
1588 socket = /var/run/dovecot/lmtp
1589 #maximum number of deliveries per batch, default 1
1594 u
/etc
/exim
4/conf.d
/transport
/30_remote_smtp_vpn
<<'EOF'
1595 # same as debians 30_exim4-config_remote_smtp, but
1596 # with interface added at the end.
1599 debug_print = "T: remote_smtp_vpn for $local_part@$domain"
1601 message_linelength_limit = 2097152
1602 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1603 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1605 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1606 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1608 .ifdef REMOTE_SMTP_RETURN_PATH
1609 return_path = REMOTE_SMTP_RETURN_PATH
1611 .ifdef REMOTE_SMTP_HELO_DATA
1612 helo_data=REMOTE_SMTP_HELO_DATA
1615 dkim_domain = DKIM_DOMAIN
1617 .ifdef DKIM_SELECTOR
1618 dkim_selector = DKIM_SELECTOR
1620 .ifdef DKIM_PRIVATE_KEY
1621 dkim_private_key = DKIM_PRIVATE_KEY
1624 dkim_canon = DKIM_CANON
1627 dkim_strict = DKIM_STRICT
1629 .ifdef DKIM_SIGN_HEADERS
1630 dkim_sign_headers = DKIM_SIGN_HEADERS
1632 .ifdef TLS_DH_MIN_BITS
1633 tls_dh_min_bits = TLS_DH_MIN_BITS
1635 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1636 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1638 .ifdef REMOTE_SMTP_PRIVATEKEY
1639 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1641 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1642 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1644 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1645 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1647 interface = <; 10.8.0.4 ; 2600:3c00:e002:3800::4
1650 u
/etc
/exim
4/conf.d
/transport
/30_smarthost_dkim
<<'EOF'
1651 # ian: this is remote_smtp_smarthost plus the dkim parts from remote_smtp
1654 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1656 message_linelength_limit = 2097152
1658 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1660 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1664 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1665 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1667 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1668 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1670 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1671 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1673 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1674 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1676 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1677 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1679 .ifdef REMOTE_SMTP_RETURN_PATH
1680 return_path = REMOTE_SMTP_RETURN_PATH
1682 .ifdef REMOTE_SMTP_HELO_DATA
1683 helo_data=REMOTE_SMTP_HELO_DATA
1685 .ifdef TLS_DH_MIN_BITS
1686 tls_dh_min_bits = TLS_DH_MIN_BITS
1688 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1689 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1691 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1692 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1694 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1695 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1698 dkim_domain = DKIM_DOMAIN
1700 .ifdef DKIM_SELECTOR
1701 dkim_selector = DKIM_SELECTOR
1703 .ifdef DKIM_PRIVATE_KEY
1704 dkim_private_key = DKIM_PRIVATE_KEY
1707 dkim_canon = DKIM_CANON
1710 dkim_strict = DKIM_STRICT
1712 .ifdef DKIM_SIGN_HEADERS
1713 dkim_sign_headers = DKIM_SIGN_HEADERS
1718 cat >/etc
/exim
4/update-exim4.conf.conf
<<'EOF'
1719 # default stuff, i havent checked if its needed
1720 dc_minimaldns='false'
1722 dc_use_split_config='true'
1723 dc_mailname_in_oh='true'
1729 if ! mountpoint
/o
; then
1730 echo "error /o is not a mountpoint" >&2
1734 # davx/davdroid setup instructions at the bottom
1737 # http://radicale.org/user_documentation/
1738 # https://davdroid.bitfire.at/configuration/
1740 # note on debugging: if radicale can't bind to the address,
1741 # in the log it just says "Starting Radicale". If you run
1742 # it in the foreground, it will give more info. Background
1743 # plus debug does not help.
1744 # sudo -u radicale radicale -D
1746 # created password file with:
1747 # htpasswd -c /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1748 # chmod 640 /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1749 # # setup chgrp www-data in ./conflink
1752 m usermod
-a -G radicale iank
1754 u
/etc
/systemd
/system
/radicale.service.d
/override.conf
<<EOF
1757 After=network.target network-online.target mailnn.service $vpnser
1760 JoinsNamespaceOf=mailnn.service
1761 StartLimitIntervalSec=0
1765 BindPaths=$bindpaths
1767 # time to sleep before restarting a service
1776 # use persistent uid/gid
1777 IFS
=:; read -r _ _ uid _
< <(getent passwd radicale
); unset IFS
1778 IFS
=:; read -r _ _ gid _
< <(getent group radicale
); unset IFS
1779 if [[ $uid != 609 ]]; then
1780 m systemctl stop radicale ||
:
1781 m usermod
-u 609 radicale
1782 m groupmod
-g 609 radicale
1783 m usermod
-g 609 radicale
1785 m
find /o
/radicale
-xdev -exec chown
-h 609 {} +
1786 m
find /o
/radicale
-xdev -exec chgrp
-h 609 {} +
1789 # I moved /var/lib/radicale after it's initialization.
1790 # I did a sudo -u radicale git init in the collections subfolder
1791 # after it gets created, per the git docs.
1792 m
/a
/exe
/lnf
-T /o
/radicale
/var
/lib
/radicale
1794 # from https://www.williamjbowman.com/blog/2015/07/24/setting-up-webdav-caldav-and-carddav-servers/
1796 # more config is for li in distro-end
1798 # coment in this file says this is needed for it to run on startup
1799 sed -ri 's/^\s*#+\s*(ENABLE_RADICALE\s*=\s*yes\s*)/\1/' /etc
/default
/radicale
1801 # comments say default is 0.0.0.0:5232
1802 m setini hosts
10.8.0.4:5232 server
1803 # https://radicale.org/2.1.html
1804 m setini
type http_x_remote_user auth
1807 # disable power management feature, set to 240 min sync interval,
1808 # so it shouldn't be bad.
1810 # davx^5 from f-droid
1811 # login with url and user name
1812 # url https://cal.iankelling.org/ian
1814 # pass, see password manager for radicale
1816 # add account dialog:
1818 # set account name as ian@iankelling.org, per help text below the
1821 # switch to groups are per-contact categories,
1822 # per https://davdroid.bitfire.at/configuration/radicale/
1825 # After setting up account, I added one address book, named
1826 # ianaddr. calender was already created, named ian. checked boxes under
1829 # To restore from old phone to new phone, I wiped all data out, then copied over the newly created files. I think
1831 # ignorable background info:
1833 # opentasks uses the calendar file.
1835 # The address book I created got a uuid as a name for the file. Note
1836 # the .props file says if it's a calendar or addressbook.
1838 # When debugging, tailed /var/log/radicale/radicale.log and apache log,
1839 # both show the requests happening. Without creating the address book,
1840 # after creating a contact, a sync would delete it.
1842 # Address books correspond to .props files in the radicale dir.
1844 # Some background is here,
1845 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1846 # which shows separate vcard option is from rfc 6350, the other is 2426,
1847 # radicale page says it implements the former not the latter,
1848 # which conflicts with the documentation of which to select, but whatever.
1849 # http://radicale.org/technical_choices/
1850 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1852 # Note, url above says only cayanogenmod 13+ and omnirom can manage groups.
1854 # Note, radicale had built-in git support to track changes, but they
1855 # removed it in 2.0.
1861 # ** $MAIL_HOST|bk|je)
1864 # based on a little google and package search, just the dovecot
1865 # packages we need instead of dovecot-common.
1867 # dovecot-lmtpd is for exim to deliver to dovecot instead of maildir
1868 # directly. The reason to do this is to use dovecot\'s sieve, which
1869 # can generally do more than exims filters (a few things less) and
1870 # sieve has the benefit of being supported in postfix and
1871 # proprietary/weird environments, so there is more examples on the
1873 pi-nostart dovecot-core dovecot-imapd dovecot-sieve dovecot-lmtpd dovecot-sqlite sqlite3
1875 for f
in /p
/c
{/machine_specific
/$HOSTNAME,}/filesystem
/etc
/dovecot
/users
; do
1876 if [[ -e $f ]]; then
1877 m rsync
-ahhi --chown=root
:dovecot
--chmod=0640 $f /etc
/dovecot
/
1881 for f
in /p
/c
/subdir_files
/sieve
/*sieve
/a
/bin
/ds
/subdir_files
/sieve
/*sieve
; do
1882 m sudo
-u $u /a
/exe
/lnf
-v -T $f $uhome/sieve
/${f##*/}
1885 # https://wiki.dovecot.org/SSL/DovecotConfiguration
1886 u
/etc
/dovecot
/dhparam
<<'EOF'
1887 -----BEGIN DH PARAMETERS-----
1888 MIIBCAKCAQEAoleil6SBxGqQKk7j0y2vV3Oklv6XupZKn7PkPv485QuFeFagifeS
1889 A+Jz6Wquqk5zhGyCu63Hp4wzGs4TyQqoLjkaWL6Ra/Bw3g3ofPEzMGEsV1Qdqde4
1890 jorwiwtr2i9E6TXQp0noT/7VFeHulIkayTeW8JulINdMHs+oLylv16McGCIrxbkM
1891 8D1PuO0TP/CNDs2QbRvJ1RjY3CeGpxMhrSHVgBCUMwnA2cvz3bYjI7UMYMMDPNrE
1892 PLrwsYzXGGCdJsO2vsmmqqgLsZiapYJlUNjfiyWLt7E2H6WzkNB3VIhIPfLqFDPK
1893 xioE3sYKdjOt+p6mlg3l8+OLtODEFPHDqwIBAg==
1894 -----END DH PARAMETERS-----
1898 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
1900 ssl_cert = </etc/exim4/fullchain.pem
1901 ssl_key = </etc/exim4/privkey.pem
1904 # We have a lets encrypt hooks that puts things here.
1905 # This is just for bk, which uses the vpn cert in exim
1906 # for sending mail, but the local hostname cert for
1909 ssl_cert = </etc/exim4/exim.crt
1910 ssl_key = </etc/exim4/exim.key
1915 # https://ssl-config.mozilla.org
1917 # this is the same as the certbot list, i check changes in /a/bin/ds/filesystem/usr/local/bin/check-lets-encrypt-ssl-settings
1918 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
1919 ssl_protocols = TLSv1.2
1920 ssl_prefer_server_ciphers = no
1923 #per https://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
1924 # default is just $mail_plugins
1925 mail_plugins = $mail_plugins sieve
1928 if dpkg
--compare-versions "$(dpkg-query -f='${Version}\n' --show dovecot-core)" ge
1:2.3; then
1930 ssl_dh = </etc/dovecot/dhparam
1933 } >/etc
/dovecot
/local.conf
1939 # If we changed 90-sieve.conf and removed the active part of the
1940 # sieve option, we wouldn\'t need this, but I\'d rather not modify a
1941 # default config if not needed. This won\'t work as a symlink in /a/c
1943 m sudo
-u $u /a
/exe
/lnf
-T sieve
/main.sieve
$uhome/.dovecot.sieve
1945 if [[ ! -e $uhome/sieve
/personal.sieve
]]; then
1946 m
touch $uhome/sieve
/personal
{,end
}{,test}.sieve
1949 rm -fv /etc
/dovecot
/conf.d
/20-lmtp.conf
# file from prev version
1950 cat >>/etc
/dovecot
/local.conf
<<EOF
1951 # simple password file based login
1952 !include conf.d/auth-passwdfile.conf.ext
1954 # ian: %u is used for alerts user vs iank
1955 mail_location = maildir:/m/%u:LAYOUT=fs:INBOX=/m/%u/INBOX
1960 # For a normal setup with exim, we need something like this, which
1961 # removes the domain part
1962 # auth_username_format = %Ln
1964 # or else # Exim says something like
1965 # "LMTP error after RCPT ... 550 ... User doesn't exist someuser@somedomain"
1966 # Dovecot verbose log says something like
1967 # "auth-worker(9048): passwd(someuser@somedomain): unknown user"
1968 # reference: http://wiki.dovecot.org/LMTP/Exim
1970 # However, I use this to direct all mail to the same inbox.
1971 # A normal way to do this, which I did at first is to have
1972 # a router in exim almost at the end, eg 950,
1974 # debug_print = "R: catchall for \$local_part@\$domain"
1976 # domains = +local_domains
1979 # http://blog.alteholz.eu/2015/04/exim4-and-catchall-email-address/
1980 # with superflous options removed.
1981 # However, this causes the envelope to be rewritten,
1982 # which makes filtering into mailboxes a little less robust or more complicated,
1983 # so I've done it this way instead. it also requires
1984 # modifying the local router in exim.
1985 auth_username_format = $u
1991 chown
-R mail.
mail /m
/md
1993 f
=/etc
/dovecot
/conf.d
/10-auth.conf
1994 if [[ -e $f ]]; then
1995 mv $f $f-iank-disabled
1998 cat >>/etc
/dovecot
/local.conf
<<EOF
1999 !include /etc/dovecot/local.conf.ext
2001 # for debugging info, uncomment these.
2002 # logs go to syslog and to /var/log/mail.log
2008 # This downcases the localpart. default is case sensitive.
2009 # case sensitive local part will miss out on valid email when some person or system
2010 # mistakenly capitalizes things.
2011 auth_username_format = %Lu
2014 # make 147 only listen on localhost, plan to use for nextcloud.
2015 # copied from mailinabox
2016 service imap-login {
2017 inet_listener imap {
2021 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_dovecot_authenticator.html
2023 unix_listener auth-client {
2031 sieve_before = /etc/dovecot/sieve-spam.sieve
2033 sieve = /m/sieve/%d/%n.sieve
2034 sieve_dir = /m/sieve/%d/%n
2038 # all taken from mailinabox.
2039 mail_location = maildir:/m/md/%d/%n
2041 mail_privileged_group = mail
2042 # By default Dovecot allows users to log in only with UID numbers 500 and above. mail is 8
2045 # todo: test these changes in the universal config
2046 # mailboxes taken from mailinabox but removed
2047 # settings duplicate to defaults
2066 special_use = \Archive
2070 auth_mechanisms = plain login
2073 u
/etc
/dovecot
/sieve-spam.sieve
<<'EOF'
2074 require ["regex", "fileinto", "imap4flags"];
2076 if allof (header :regex "X-Spam-Status" "^Yes") {
2082 u
/etc
/dovecot
/local.conf.ext
<<'EOF'
2085 args = /etc/dovecot/dovecot-sql.conf.ext
2089 args = /etc/dovecot/dovecot-sql.conf.ext
2094 u
/etc
/dovecot
/dovecot-sql.conf.ext
<<'EOF'
2097 # for je and bk, populated the testignore users for the relevant domains
2098 connect = /m/rc/users.sqlite
2099 default_pass_scheme = SHA512-CRYPT
2100 password_query = SELECT email as user, password FROM users WHERE email='%u';
2101 user_query = SELECT email AS user, "mail" as uid, "mail" as gid, "/m/md/%d/%n" as home FROM users WHERE email='%u';
2102 iterate_query = SELECT email AS user FROM users;
2104 m
chmod 0600 /etc
/dovecot
/dovecot-sql.conf.ext
# per Dovecot instructions
2106 # db needs to be in a www-data writable directory
2107 db
=/m
/rc
/users.sqlite
2108 if [[ ! -s $db ]]; then
2110 m sqlite3
$db <<'EOF'
2111 CREATE TABLE users (
2112 id INTEGER PRIMARY KEY AUTOINCREMENT,
2113 email TEXT NOT NULL UNIQUE,
2114 password TEXT NOT NULL,
2116 privileges TEXT NOT NULL DEFAULT '');
2119 # users.sqlite is saved into /p/c/machine_specific, so update it there!.
2121 # example of adding a user:
2122 # hash: doveadm pw -s SHA512-CRYPT -p passhere
2123 # sqlite3 /m/rc/users.sqlite <<'EOF'
2124 #insert into users (email, password) values ('testignore@bk.b8.nz', 'hash');
2126 # update users set password = 'hash' where email = 'testignore@bk.b8.nz';
2128 # this should be at the end since it requires a valid dovecot config
2129 m sievec
/etc
/dovecot
/sieve-spam.sieve
2133 # roundcube uses this
2135 chown
mail.
mail /m
/sieve
2136 m pi dovecot-managesieved
2140 # * thunderbird autoconfig setup
2142 bkdomains
=(expertpathologyreview.com amnimal.ninja
)
2143 if [[ $HOSTNAME == bk
]]; then
2144 for domain
in ${bkdomains[@]}; do
2145 m
/a
/exe
/web-conf apache2 autoconfig.
$domain
2146 dir
=/var
/www
/autoconfig.
$domain/html
/mail
2148 # taken from mailinabox
2149 u
$dir/config-v1.1.xml
<<EOF
2150 <?xml version="1.0" encoding="UTF-8"?>
2151 <clientConfig version="1.1">
2152 <emailProvider id="$domain">
2153 <domain>$domain</domain>
2155 <displayName>$domain Mail</displayName>
2156 <displayShortName>$domain</displayShortName>
2158 <incomingServer type="imap">
2159 <hostname>mail2.iankelling.org</hostname>
2161 <socketType>SSL</socketType>
2162 <username>%EMAILADDRESS%</username>
2163 <authentication>password-cleartext</authentication>
2166 <outgoingServer type="smtp">
2167 <hostname>mail2.iankelling.org</hostname>
2169 <socketType>STARTTLS</socketType>
2170 <username>%EMAILADDRESS%</username>
2171 <authentication>password-cleartext</authentication>
2172 <addThisServer>true</addThisServer>
2173 <useGlobalPreferredServer>false</useGlobalPreferredServer>
2176 <documentation url="https://$domain/">
2177 <descr lang="en">$domain website.</descr>
2182 <loginPage url="https://$domain/roundcube" />
2183 <loginPageInfo url="https://$domain/roundcube" >
2184 <username>%EMAILADDRESS%</username>
2185 <usernameField id="rcmloginuser" name="_user" />
2186 <passwordField id="rcmloginpwd" name="_pass" />
2187 <loginButton id="rcmloginsubmit" />
2190 <clientConfigUpdate url="https://autoconfig.$domain/mail/config-v1.1.xml" />
2198 if [[ $HOSTNAME == bk
]]; then
2200 # zip according to /installer
2201 # which requires adding a line to /usr/local/lib/roundcubemail/config/config.inc.php
2202 # $config['enable_installer'] = true;
2203 pi roundcube roundcube-sqlite3 php-zip apache2 php-fpm
2205 ### begin composer install
2206 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
2208 # sum="$(wget -q -O - https://composer.github.io/installer.sig)"
2209 # m php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
2210 # if [[ $sum != $(php -r "echo hash_file('sha384', 'composer-setup.php');") ]]; then
2211 # echo 'ERROR: Invalid composer installer checksum' >&2
2212 # rm -fv composer-setup.php
2215 # m php composer-setup.php --quiet
2216 # rm -fv composer-setup.php
2217 # m mv composer.phar /usr/local/bin
2219 # the above method gets composer2, carddav plugin at least doesnt work with that
2220 # yet, it was just released 10-24-2020.
2222 m wget
-nv -N https
://getcomposer.org
/composer-1.phar
2223 chmod +x composer-1.phar
2224 ### end composer install
2226 rcdirs
=(/usr
/local
/lib
/rcexpertpath
/usr
/local
/lib
/rcninja
)
2227 ncdirs
=(/var
/www
/ncninja
)
2228 ncdirs
=(/var
/www
/ncexpertpath
/var
/www
/ncninja
)
2229 # point debian cronjob to our local install, preventing daily cron error
2231 # debian's cronjob will fail, remove both paths it uses just to be sure
2232 rm -fv /usr
/share
/roundcube
/bin
/cleandb.sh
/etc
/cron.d
/roundcube-core
2234 #### begin dl roundcube
2235 # note, im r2e subbed to https://github.com/roundcube/roundcubemail/releases.atom
2236 v
=1.4.13; f
=roundcubemail-
$v-complete.
tar.gz
2238 if [[ -e $f ]]; then
2239 timestamp
=$
(stat
-c %Y
$f)
2243 m wget
-nv -N https
://github.com
/roundcube
/roundcubemail
/releases
/download
/$v/$f
2244 new_timestamp
=$
(stat
-c %Y
$f)
2245 for rcdir
in ${rcdirs[@]}; do
2246 if [[ $timestamp != "$new_timestamp" ||
! -e "$rcdir/config/secret" ]]; then
2247 m
tar -C /usr
/local
/lib
--no-same-owner -zxf $f
2249 m
mv /usr
/local
/lib
/roundcubemail-
$v $rcdir
2252 #### end dl roundcube
2254 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2255 domain
=${bkdomains[i]}
2259 myncdir
=/root
/${ncdir##*/}
2262 # copied from debians cronjob
2263 u
/etc
/cron.d
/$rcbase <<EOF
2264 # Roundcube database cleaning: finally removes all records that are
2265 # marked as deleted.
2266 0 5 * * * www-data $rcdir/bin/cleandb.sh >/dev/null
2269 m
/a
/exe
/web-conf
- apache2
$domain <<EOF
2270 Alias /roundcube $rcdir
2271 ### begin roundcube settings
2272 # taken from /etc/apache2/conf-available/roundcube.conf version 1.4.8+dfsg.1-1~bpo10+1
2274 Options +FollowSymLinks
2275 # This is needed to parse $rcdir/.htaccess.
2279 # Protecting basic directories:
2280 <Directory $rcdir/config>
2281 Options -FollowSymLinks
2284 ### end roundcube settings
2287 ### begin nextcloud settings
2288 Alias /nextcloud "$ncdir/"
2292 Options FollowSymLinks MultiViews
2294 <IfModule mod_dav.c>
2300 # based on install checker, links to
2301 # https://docs.nextcloud.com/server/19/admin_manual/issues/general_troubleshooting.html#service-discovery
2302 # their example was a bit wrong, I figured it out by adding
2303 # LogLevel warn rewrite:trace5
2304 # then watching the apache logs
2307 RewriteRule ^/\.well-known/host-meta /nextcloud/public.php?service=host-meta [QSA,L]
2308 RewriteRule ^/\.well-known/host-meta\.json /nextcloud/public.php?service=host-meta-json [QSA,L]
2309 RewriteRule ^/\.well-known/webfinger /nextcloud/public.php?service=webfinger [QSA,L]
2310 RewriteRule ^/\.well-known/carddav /nextcloud/remote.php/dav/ [R=301,L]
2311 RewriteRule ^/\.well-known/caldav /nextcloud/remote.php/dav/ [R=301,L]
2312 ### end nextcloud settings
2314 if [[ ! -e $rcdir/config
/secret
]]; then
2315 base64
</dev
/urandom |
head -c24 >$rcdir/config
/secret ||
[[ $?
== 141 ||
${PIPESTATUS[0]} == 32 ]]
2317 secret
=$
(cat $rcdir/config
/secret
)
2319 rclogdir
=/var
/log
/$rcbase
2320 rctmpdir
=/var
/tmp
/$rcbase
2321 rcdb
=/m
/rc
/$rcbase.sqlite
2322 # config from mailinabox
2323 u
$rcdir/config
/config.inc.php
<<EOF
2326 # debian creates this for us
2327 \$config['log_dir'] = '$rclogdir/';
2328 # debian also creates a temp dir, but it is under its install dir,
2329 # seems better to have our own.
2330 \$config['temp_dir'] = '$rctmpdir/';
2331 \$config['db_dsnw'] = 'sqlite:///$rcdb?mode=0640';
2332 \$config['default_host'] = 'ssl://localhost';
2333 \$config['default_port'] = 993;
2334 \$config['imap_conn_options'] = array(
2336 'verify_peer' => false,
2337 'verify_peer_name' => false,
2340 \$config['imap_timeout'] = 15;
2341 \$config['smtp_server'] = 'tls://127.0.0.1';
2342 \$config['smtp_conn_options'] = array(
2344 'verify_peer' => false,
2345 'verify_peer_name' => false,
2348 \$config['product_name'] = 'webmail';
2349 \$config['des_key'] = '$secret';
2350 \$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'carddav', 'html5_notifier');
2351 \$config['skin'] = 'elastic';
2352 \$config['login_autocomplete'] = 2;
2353 \$config['password_charset'] = 'UTF-8';
2354 \$config['junk_mbox'] = 'Spam';
2355 # disable builtin addressbook
2356 \$config['address_book_type'] = '';
2360 m mkdir
-p $rclogdir
2361 m
chmod 750 $rclogdir
2362 m chown www-data
:adm
$rclogdir
2363 # note: subscribed to updates:
2364 # r2e add rcmcarddav https://github.com/blind-coder/rcmcarddav/commits/master.atom ian@iankelling.org
2365 # r2e add roundcube https://github.com/roundcube/roundcubemail/releases.atom ian@iankelling.org
2366 m mkdir
-p $rctmpdir /m
/rc
2367 m chown
-R www-data.www-data
$rctmpdir /m
/rc
2368 m
chmod 750 $rctmpdir
2369 # Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
2370 # todo: check for other mailinabox things
2371 m sudo
-u www-data
touch $rclogdir/errors.log
2373 #### begin carddav install
2374 # This is the official roundcube carddav repo.
2375 # Install doc suggests downloading with composer, but that
2376 # didnt work, it said some ldap package for roundcube was missing,
2377 # but I dont want to download some extra ldap thing.
2378 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/INSTALL.md
2379 verf
=$rcdir/plugins
/carddav
/myversion
2383 if [[ -e $verf ]]; then
2384 if [[ $
(cat $verf) != "$v" ]]; then
2392 m
rm -rf $rcdir/plugins
/carddav
2394 m wget
-nv -O $tmpd/t.tgz https
://github.com
/blind-coder
/rcmcarddav
/releases
/download
/v
$v/carddav-v
$v.tgz
2398 m chown
-R www-data
:www-data
$rcdir/plugins
/carddav
2399 m
cd $rcdir/plugins
/carddav
2401 m sudo
-u www-data composer-1.phar update
--no-dev
2403 m sudo
-u www-data composer-1.phar
install --no-dev
2405 m chown
-R root
:root
$rcdir/plugins
/carddav
2409 # So, strangely, this worked in initial testing, but then
2410 # on first run it wouldn't show the existing contacts until
2411 # I went into the carddav settings and did "force immediate sync",
2412 # which seemed to fix things. Note, some of these settings
2413 # get initalized per/addressbook in the db, then need changing
2414 # there or through the settings menu.
2416 # About categories, see https://www.davx5.com/tested-with/nextcloud
2417 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/GROUPS.md
2418 u
$rcdir/plugins
/carddav
/config.inc.php
<<EOF;
2420 \$prefs['_GLOBAL']['hide_preferences'] = false;
2421 \$prefs['davserver'] = array(
2422 # name in the UI is kind of dumb. This is just something short that seems to fit ok.
2424 'username' => '%u', // login username
2425 'password' => '%p', // login password
2426 'url' => 'https://$domain/nextcloud/remote.php/dav/addressbooks/users/%u/contacts',
2428 'readonly' => false,
2429 'refresh_time' => '00:10:00',
2430 'fixed' => array('username','password'),
2431 'use_categories' => false,
2436 #### end carddav install
2439 if [[ ! -d html5_notifier
]]; then
2440 m git clone https
://github.com
/stremlau
/html5_notifier
2442 cd $rcdir/plugins
/html5_notifier
2445 # todo: try out roundcube plugins: thunderbird labels
2447 # Password changing plugin settings
2448 cat $rcdir/plugins
/password
/config.inc.php.dist
- >$rcdir/plugins
/password
/config.inc.php
<<'EOF'
2449 # following are from mailinabox
2450 $config['password_minimum_length'] = 8;
2451 $config['password_db_dsn'] = 'sqlite:////m/rc/users.sqlite';
2452 $config['password_query'] = 'UPDATE users SET password=%D WHERE email=%u';
2453 $config['password_dovecotpw'] = '/usr/bin/doveadm pw';
2454 $config['password_dovecotpw_method'] = 'SHA512-CRYPT';
2455 $config['password_dovecotpw_with_method'] = true;
2457 # so PHP can use doveadm, for the password changing plugin
2458 m usermod
-a -G dovecot www-data
2459 m usermod
-a -G mail $u
2461 # so php can update passwords
2462 m chown www-data
:dovecot
/m
/rc
/users.sqlite
2463 m
chmod 664 /m
/rc
/users.sqlite
2465 # Run Roundcube database migration script (database is created if it does not exist)
2466 m
$rcdir/bin
/updatedb.sh
--dir $rcdir/SQL
--package roundcube
2467 m chown www-data
:www-data
$rcdb
2469 done # end loop over domains and rcdirs
2471 ### begin php setup for rc ###
2472 # Enable PHP modules.
2473 m phpenmod
-v php mcrypt imap
2474 # dpkg says this is required.
2475 # nextcloud needs these too
2476 m a2enmod proxy_fcgi setenvif
2477 fpm
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* (php[^ ]*-fpm)( .*|$)/\1/p') # eg: php7.4-fpm
2478 phpver
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* php([^ ]*)-fpm( .*|$)/\1/p')
2480 # 3 useless guides on php fpm fcgi debian 10 later, i figure out from reading
2481 # /etc/apache2/conf-enabled/php7.3-fpm.conf
2482 m a2dismod php
$phpver
2483 # according to /install, we should set date.timezone,
2484 # but that is dumb, the system already has the right zone in
2485 # $rclogdir/errors.log
2486 # todo: consider other settings in
2487 # /a/opt/mailinabox/setup/nextcloud.sh
2488 u
/etc
/php
/$phpver/cli
/conf.d
/30-local.ini
<<'EOF'
2492 u
/etc
/php
/$phpver/fpm
/conf.d
/30-local.ini
<<'EOF'
2493 date.timezone = "America/New_York"
2495 upload_max_filesize = 2000M
2496 post_max_size = 2000M
2497 # install checker, nextcloud/settings/admin/overview
2500 m systemctl restart
$fpm
2501 # dunno if reload/restart is needed
2502 m systemctl reload apache2
2503 # note bk backups are defined in crontab outside this file
2504 ### end php setup for rc ###
2506 fi # end roundcube setup
2510 if [[ $HOSTNAME == bk
]]; then
2511 # from install checker, nextcloud/settings/admin/overview and
2512 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2513 # curl from the web installer requirement, but i switched to cli
2514 # it recommends php-file info, but that is part of php7.3-common, already got installed
2516 m pi php-curl php-bz2 php-gmp php-bcmath php-imagick php-apcu
2518 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2519 cat >/etc
/php
/$phpver/fpm
/pool.d
/localwww.conf
<<'EOF'
2524 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2525 domain
=${bkdomains[i]}
2529 if [[ ! -e $ncdir/index.php
]]; then
2530 # if we wanted to only install a specific version, use something like
2531 # file=latest-22.zip
2533 m wget
-nv -N https
://download.nextcloud.com
/server
/releases
/$file
2537 m chown
-R www-data.www-data nextcloud
2538 m
mv nextcloud
$ncdir
2541 if [[ ! -e $myncdir/done-install
]]; then
2543 m sudo
-u www-data php occ maintenance
:install --database sqlite
--admin-user iank
--admin-pass $nextcloud_admin_pass
2544 m
touch $myncdir/done-install
2547 # note, strange this happend where updater did not increment the version var,
2548 # mine was stuck on 20. I manually updated it.
2550 if [[ ! -e $myncdir/config.php-orig
]]; then
2551 m
cp -a config.php
$myncdir/config.php-orig
2553 cat $myncdir/config.php-orig
- >$myncdir/tmp.php
<<EOF
2554 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/email_configuration.html
2555 \$CONFIG["mail_smtpmode"] = "sendmail";
2556 \$CONFIG["mail_smtphost"] = "127.0.0.1";
2557 \$CONFIG["mail_smtpport"] = 25;
2558 \$CONFIG["mail_smtptimeout"] = 10;
2559 \$CONFIG["mail_smtpsecure"] = "";
2560 \$CONFIG["mail_smtpauth"] = false;
2561 \$CONFIG["mail_smtpauthtype"] = "LOGIN";
2562 \$CONFIG["mail_smtpname"] = "";
2563 \$CONFIG["mail_smtppassword"] = "";
2564 \$CONFIG["mail_domain"] = "$domain";
2566 # https://github.com/nextcloud/user_external#readme
2567 # plus mailinabox example
2568 #\$CONFIG['user_backends'] = array(array('class' => 'OC_User_IMAP','arguments' => array('127.0.0.1', 143, null),),);
2571 # based on installer check
2572 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/caching_configuration.html
2573 \$CONFIG['memcache.local'] = '\OC\Memcache\APCu';
2575 \$CONFIG['overwrite.cli.url'] = 'https://$domain/nextcloud';
2576 \$CONFIG['htaccess.RewriteBase'] = '/nextcloud';
2577 \$CONFIG['trusted_domains'] = array (
2581 fwrite(STDOUT, "<?php\n\\\$CONFIG = ");
2582 var_export(\$CONFIG);
2583 fwrite(STDOUT, ";\n");
2585 e running php
$myncdir/tmp.php
2586 # note: we leave it around place for debugging
2587 php
$myncdir/tmp.php
>config.php
2589 m sudo
-u www-data php occ maintenance
:update
:htaccess
2590 list
=$
(sudo
-u www-data php
$ncdir/occ
--output=json_pretty app
:list
)
2591 # user_external not compaible with nc 23
2592 for app
in contacts calendar
; do
2593 if [[ $
(printf "%s\n" "$list"| jq
".enabled.$app") == null
]]; then
2595 m sudo
-u www-data php occ app
:install $app
2598 u
/etc
/systemd
/system
/$ncbase.service
<<EOF
2600 Description=ncup $ncbase
2601 After=multi-user.target
2605 ExecStart=/usr/local/bin/ncup $ncbase
2607 IOSchedulingClass=idle
2608 CPUSchedulingPolicy=idle
2610 u
/etc
/systemd
/system
/$ncbase.timer
<<EOF
2612 Description=ncup $ncbase timer
2618 WantedBy=timers.target
2620 systemctl
enable --now $ncbase.timer
2621 u
/usr
/local
/bin
/ncup
<<'EOFOUTER'
2624 source /usr/local/lib/err
2626 m() { printf "%s\n" "$*"; "$@"; }
2628 echo failed nextcloud update for $ncbase >&2
2629 # -odf or else systemd will kill the background delivery process
2630 # and the message will sit in the queue until the next queue run.
2632 To: alerts@iankelling.org
2633 From: www-data@$(hostname -f)
2634 Subject: failed nextcloud update for $ncbase
2636 For logs, run: jr -u $ncbase
2640 if [[ $(id -u -n) != www-data ]]; then
2641 echo error: running as wrong user: $(id -u -n), expected www-data
2646 echo error: expected an arg, nextcloud relative base dir
2652 # https://docs.nextcloud.com/server/22/admin_manual/maintenance/update.html?highlight=updater+phar
2653 m php /var/www/$ncbase/updater/updater.phar -n
2655 chmod +x
/usr
/local
/bin
/ncup
2657 mkdir
-p /var
/www
/cron-errors
2658 chown www-data.www-data
/var
/www
/cron-errors
2659 u
/etc
/cron.d
/$ncbase <<EOF
2660 PATH=/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/bin
2662 # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/background_jobs_configuration.html
2663 */5 * * * * www-data php -f $ncdir/cron.php --define apc.enable_cli=1 |& log-once nccron
2670 # * exim host conditional config
2674 all_dirs
=(/p
/c
/filesystem
)
2675 for x
in /p
/c
/machine_specific
/*.hosts
/a
/bin
/ds
/machine_specific
/*.hosts
; do
2676 if grep -qxF $HOSTNAME $x; then all_dirs
+=( ${x%.hosts} ); fi
2679 for d
in ${all_dirs[@]}; do
2680 f
=$d/etc
/exim
4/passwd
2681 if [[ -e $f ]]; then
2684 tmp
=($d/etc
/exim
4/*.pem
)
2685 if (( ${#tmp[@]} )); then
2690 if (( ${#files[@]} )); then
2691 sudo rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 ${files[@]} /etc
/exim
4/
2699 # avoid accepting mail for invalid users
2700 # https://wiki.dovecot.org/LMTP/Exim
2701 cat >>/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2703 message = invalid recipient
2704 domains = +local_domains
2705 !verify = recipient/callout=no_cache
2707 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2711 server_socket = /var/run/dovecot/auth-client
2712 server_set_id = $auth1
2717 u
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2718 # from 30_exim4-config_examples
2722 server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
2723 server_set_id = $auth2
2725 .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
2726 server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
2731 # ** exim: main daemon use non-default config file
2734 # to see the default comments in /etc/default/exim4:
2735 # s update-exim4defaults --force --init
2736 # which will overwrite any existing file
2737 u
/etc
/default
/exim4
<<'EOF'
2738 QUEUERUNNER='combined'
2740 COMMONOPTIONS='-C /etc/exim4/my.conf'
2741 UPEX4OPTS='-o /etc/exim4/my.conf'
2742 # i use epanic-clean for alerting if there are bad paniclog entries
2743 E4BCD_WATCH_PANICLOG='no'
2745 # make exim be a nonroot setuid program.
2746 chown Debian-exim
:Debian-exim
/usr
/sbin
/exim4
2747 # needs guid set in order to become Debian-exim
2748 chmod g
+s
,u
+s
/usr
/sbin
/exim4
2749 # need this to avoid error on service reload:
2750 # 2022-08-07 18:44:34.005 [892491] pid 892491: SIGHUP received: re-exec daemon
2751 # 2022-08-07 18:44:34.036 [892491] cwd=/var/spool/exim4 5 args: /usr/sbin/exim4 -bd -q30m -C /etc/exim4/my.conf
2752 # 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)
2753 # note: the daemon gives up and dies after retrying those 9 times.
2754 # I came upon this by guessing and trial and error.
2755 setcap CAP_NET_BIND_SERVICE
+ei
/usr
/sbin
/exim4
2756 u
/etc
/exim
4/trusted_configs
<<'EOF'
2762 u
/etc
/default
/exim4
<<'EOF'
2763 QUEUERUNNER='combined'
2773 # no reason to expect it to ever be there.
2774 rm -fv /etc
/systemd
/system
/exim4.service.d
/nonroot.conf
2778 for d
in /a
/d
/m
/media
/mnt
/nocow
/o
/p
/q
; do
2779 if [[ -d $d ]]; then
2783 u
/etc
/systemd
/system
/exim4.service.d
/nonroot.conf
<<EOF
2785 # see 56.2 Root privilege in exim spec
2786 AmbientCapabilities=CAP_NET_BIND_SERVICE
2787 # https://www.redhat.com/sysadmin/mastering-systemd
2788 # things that seem good and reasonabl.e
2791 # note, in t10 systemd, if one of these is an sshfs mountpoint,
2792 # this whole setting doesnt work. tried it with a newer systemd 250 though
2793 # an nspawn, and it worked there.
2794 InaccessiblePaths=${dirs[@]}
2795 # this gives us the permission denied error:
2796 # socket bind() to port 25 for address (any IPv6) failed: Permission denied
2797 # but we also have to set the file capabilities to avoid the error.
2798 #NoNewPrivileges=yes
2801 # when we get newer systemd
2804 u
/etc
/exim
4/conf.d
/main
/000_local-noroot
<<'EOF'
2805 # see 56.2 Root privilege in exim spec
2806 deliver_drop_privilege = true
2809 300_exim4-config_real_local
2810 600_exim4-config_userforward
2811 700_exim4-config_procmail
2812 800_exim4-config_maildrop
2815 for f
in ${files[@]}; do
2816 echo "# iank: removed due to running nonroot"|u
/etc
/exim
4/conf.d
/router
/$f
2823 # ** $MAIL_HOST|bk|je)
2826 echo|u
/etc
/exim
4/conf.d
/router
/165_backup_local
2828 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2829 # note: some things we don't set that are here by default because they are unused.
2830 dc_local_interfaces=''
2831 dc_eximconfig_configtype='internet'
2832 dc_localdelivery='dovecot_lmtp'
2834 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2835 # recommended if dns is expected to work
2836 CHECK_RCPT_VERIFY_SENDER = true
2837 # default config comment says: If you enable this, you might reject legitimate mail,
2838 # but eggs has had this a long time, so that seems unlikely.
2839 CHECK_RCPT_SPF = true
2840 CHECK_RCPT_REVERSE_DNS = true
2841 CHECK_MAIL_HELO_ISSUED = true
2844 CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl
2845 CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl
2848 #dmarc_tld_file = /etc/public_suffix_list.dat
2857 # no clamav on je, it has 1.5g memory and clamav uses most of it
2858 u
/etc
/exim
4/conf.d
/clamav_data_acl
<<'EOF'
2860 !hosts = +iank_trusted
2861 !authenticated = plain_server:login_server
2862 condition = ${if def:malware_name}
2863 remove_header = Subject:
2864 add_header = Subject: [Clamav warning: $malware_name] $h_subject
2865 log_message = heuristic malware warning: $malware_name
2868 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2869 # je.b8.nz will run out of memory with freshclam
2870 av_scanner = clamd:/var/run/clamav/clamd.ctl
2873 cat >> /etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
2875 malware = */defer_ok
2876 !condition = ${if match {$malware_name}{\N^Heuristic\N}}
2877 message = This message was detected as possible malware ($malware_name).
2880 cat >/etc
/exim
4/conf.d
/main
/000_local-nn
<<EOF
2881 # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the
2882 # smarthost config type, not sure.
2883 # failing message on mail-tester.com:
2884 # We check if there is a server (A Record) behind your hostname kd.
2885 # You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software
2886 # https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box
2887 # and this one seemed appropriate from grepping config.
2888 # I originally set this to li.iankelling.org, but then ended up with errors when li tried to send
2889 # mail to kd, so this should basically be a name that no host has as their
2890 # canonical hostname since the actual host sits behind a nat and changes.
2891 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org
2892 # I used this to avoid sender verification, didnt work but it still
2893 # makes sense based on the spec.
2894 hosts_treat_as_local = defaultnn.b8.nz
2896 # Outside nn, we get the default cert location from a debian macro,
2897 # and the cert file is put in place by a certbot hook.
2898 MAIN_TLS_CERTIFICATE = /etc/exim4/fullchain.pem
2899 MAIN_TLS_PRIVATEKEY = /etc/exim4/privkey.pem
2902 u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
<<'EOF'
2904 debug_print = "R: smarthost for $local_part@$domain"
2905 driver = manualroute
2906 domains = ! +local_domains
2907 # send most mail through eggs, helps fsfs sender reputation.
2908 # uncomment and optionally move to 188 file to send through my own servers again
2910 transport = smarthost_dkim
2911 route_list = * fencepost.gnu.org::587 byname
2912 host_find_failed = ignore
2913 same_domain_copy_routing = yes
2917 /a
/exe
/cedit defaultnn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2918 10.173.8.1 defaultnn.b8.nz
2924 u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
<<'EOF'
2925 # copied from /etc/exim4/conf.d/router/200_exim4-config_primary, but
2926 # use vpn transport. lower priority so it overrides the default route.
2927 # Use this in case our vpn fails, we dont send anything without it.
2928 .ifdef DCconfig_internet
2930 debug_print = "R: dnslookup for $local_part@$domain"
2932 domains = ! +local_domains
2933 transport = remote_smtp_vpn
2934 same_domain_copy_routing = yes
2935 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
2941 # note on backups: I used to do an automatic sshfs and restricted
2942 # permissions to a specific directory on the remote server, /bu/mnt,
2943 # which required using a dedicated user, but realized smtp will be
2944 # more reliable and less fuss. If I ever need that again, see the
2945 # history of this file, and bum in brc2.
2946 u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
<<'EOF'
2949 # b is just an arbirary short string
2950 data = b@eximbackup.b8.nz
2951 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
2952 # note, to test this, i could temporarily allow testignore.
2953 # alerts avoids potential mail loop. root is already
2954 # redirected earlier, so that is just being overly cautious.
2955 local_parts = ! root : ! testignore : ! alerts
2957 errors_to = alerts@iankelling.org
2962 # This allows for forwarded mail to not get most rcpt checks, especially SPF,
2963 # which would incorrectly get denied.
2964 u
/etc
/exim
4/host_local_deny_exceptions
<<'EOF'
2969 # cron email from smarthost hosts will automatically be to
2970 # USER@FQDN. I redirect that to alerts@, on the smarthosts, but in
2971 # case that doesn't work, we still want to accept that mail, but not
2972 # from any host except the smarthosts. local_hostnames and this rule
2973 # is for that purpose.
2974 u
/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2977 domains = +local_hostnames
2980 # for testing bounce behavior
2982 # senders = testlist-bounces+test=zroe.org@fsf.org
2983 # message = iank-bounce
2985 echo|u
/etc
/exim
4/conf.d
/router
/880_universal_forward
2988 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2989 MAILDIR_HOME_MAILDIR_LOCATION = /m/md/Sent
2993 u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
<<'EOF'
2994 # ian: save a copy of sent mail. i thought of other ways to
2995 # do this, for example, to only save sent mail that is not sent
2996 # from my mail client which saves a copy by default, but in the
2997 # end, it seems simplest to turn that off. We want to save
2998 # external mail sent by smarthosts.
3001 domains = ! +local_domains
3002 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3003 data = vojdedIdNejyebni@b8.nz
3008 # for iank@fsf.org, i have mail.fsf.org forward it to fsf@iankelling.org.
3009 # and also have mail.iankelling.org whitelisted as a relay domain.
3010 # I could avoid that if I changed this to submit to 587 with a
3011 # password like a standard mua.
3012 u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
<<'EOF'
3013 # ian: copied from /etc/exim4/conf.d/router/200_exim4-config_primary, and added senders = and
3014 # replaced DCsmarthost with hostname
3016 debug_print = "R: smarthost for $local_part@$domain"
3017 driver = manualroute
3018 domains = ! +local_domains
3020 transport = remote_smtp_smarthost
3021 route_list = * mail.fsf.org::587 byname
3022 host_find_failed = ignore
3023 same_domain_copy_routing = yes
3027 debug_print = "R: smarthost for $local_part@$domain"
3028 driver = manualroute
3029 domains = ! +local_domains
3030 senders = *@posteo.net
3031 transport = remote_smtp_smarthost
3032 route_list = * posteo.de::587 byname
3033 host_find_failed = ignore
3034 same_domain_copy_routing = yes
3038 # Greping /etc/exim4, unqualified mails this would end up as
3039 # a return path, so it should go somewhere we will see.
3040 # The debconf output about mailname is as follows:
3041 # The 'mail name' is the domain name used to 'qualify' mail addresses without a domain
3043 # This name will also be used by other programs. It should be the single, fully
3044 # qualified domain name (FQDN).
3045 # Thus, if a mail address on the local host is foo@example.org, the correct value for
3046 # this option would be example.org.
3047 # This name won\'t appear on From: lines of outgoing messages if rewriting is enabled.
3048 echo iankelling.org
> /etc
/mailname
3051 # mail.iankelling.org so local imap clients can connect with tls and
3052 # when they happen to not be local.
3053 # todo: this should be 10.8.0.4
3055 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3056 # note: i put nn.b8.nz into bind for good measure
3057 10.173.8.2 nn.b8.nz mx.iankelling.org
3060 # note: systemd-resolved will consult /etc/hosts, dnsmasq wont. this assumes
3061 # weve configured this file in dnsmasq if we are using it.
3062 /a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf
<<'EOF' || [[ $? == 1 ]]
3063 server=/mx.iankelling.org/127.0.1.1
3065 # I used to use debconf-set-selections + dpkg-reconfigure,
3066 # which then updates this file
3067 # but the process is slower than updating it directly and then I want to set other things in
3068 # update-exim4.conf.conf, so there's no point.
3069 # The file is documented in man update-exim4.conf,
3070 # except the man page is not perfect, read the bash script to be sure about things.
3072 # The debconf questions output is additional documentation that is not
3073 # easily accessible, but super long, along with the initial default comment in this
3074 # file, so I've saved that into ./mail-notes.conf.
3076 # # TODO: remove mx.iankelling.org once systems get updated mail-setup from jan 2022
3077 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3078 # man page: is used to build the local_domains list, together with "localhost"
3079 # this is duplicated in a later router.
3080 dc_other_hostnames='iankelling.org;zroe.org;r2e.iankelling.org;mx.iankelling.org;!je.b8.nz;!bk.b8.nz;*.b8.nz;b8.nz'
3081 dc_relay_nets='defaultnn.b8.nz'
3085 # dmarc. not used currently
3086 f
=/etc
/cron.daily
/refresh-dmarc-tld-file
3090 wget -q -N https://publicsuffix.org/list/public_suffix_list.dat
3096 ## we use this host to monitor MAIL_HOST and host a mail server for someone
3100 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
3104 sed -r -f - /etc
/init.d
/exim4
<<'EOF' |u /etc/init.d/exim4in
3105 s,/etc/default/exim4,/etc/default/exim4in,g
3106 s,/run/exim4/exim.pid,/run/exim4/eximin.pid,g
3107 s,(^[ #]*Provides:).*,\1 exim4in,
3108 s,(^[ #]*NAME=).*,\1"exim4in",
3110 chmod +x
/etc
/init.d
/exim4in
3111 u
/etc
/systemd
/system
/exim4in.service.d
/alwaysrestart.conf
<<'EOF'
3113 # needed to continually restart
3114 StartLimitIntervalSec=0
3118 # time to sleep before restarting a service
3122 u
/etc
/default
/exim4in
<<'EOF'
3123 # defaults but no queue runner and alternate config dir
3125 COMMONOPTIONS='-oP /run/exim4/eximin.pid'
3126 UPEX4OPTS='-d /etc/myexim4'
3129 echo bk.b8.nz
> /etc
/mailname
3130 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3131 # man page: is used to build the local_domains list, together with "localhost"
3132 dc_other_hostnames='amnimal.ninja;expertpathologyreview.com;bk.b8.nz'
3138 echo je.b8.nz
> /etc
/mailname
3139 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3140 dc_other_hostnames='je.b8.nz'
3143 # ** not MAIL_HOST|bk|je
3145 # this one should be removed for all non mail hosts, but
3146 # bk and je never become mail_host
3147 echo|u
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
3148 echo|u
/etc
/exim
4/conf.d
/router
/160_backup_redir
3149 echo|u
/etc
/exim
4/conf.d
/router
/161_backup_redir_nn
3150 echo|u
/etc
/exim
4/conf.d
/router
/185_sentarchive
3151 echo|u
/etc
/exim
4/conf.d
/router
/186_sentarchive_nn
3152 echo|u
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
3153 echo|u
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
3154 echo|u
/etc
/exim
4/conf.d
/rcpt_local_acl
3155 echo|u
/etc
/exim
4/conf.d
/main
/000_local-nn
3156 echo|u
/etc
/exim
4/conf.d
/clamav_data_acl
3160 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
3161 MAIN_TLS_CERTIFICATE = /etc/exim4/certs/$wghost/fullchain.pem
3162 MAIN_TLS_PRIVATEKEY = /etc/exim4/certs/$wghost/privkey.pem
3163 # so we can maintiain the originals of the backups.
3164 # we wouldnt want this if we were dealing with any other
3165 # local deliveries, but we sent all others to the smarthost
3166 # which then strips the headers.
3167 envelope_to_remove = false
3168 return_path_remove = false
3172 # catches things like cronjob email
3173 u
/etc
/exim
4/conf.d
/router
/880_universal_forward
<<'EOF'
3176 domains = +local_domains
3177 data = alerts@iankelling.org
3181 for unit
in ${nn_progs[@]}; do
3182 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
3186 # dont i dont care if defaultnn section gets left, it wont
3188 echo |
/a
/exe
/cedit nn
/etc
/hosts ||
[[ $?
== 1 ]]
3189 echo |
/a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf ||
[[ $?
== 1 ]]
3191 # note: condition duplicated at else
3194 install -d -g Debian-exim
-o Debian-exim
-m 771 /bu
/md
3195 if [[ -e /bu
/md
/cur
&& $
(stat
-c %u
/bu
/md
/cur
) == 1000 ]]; then
3196 chown
-R Debian-exim
:Debian-exim
/bu
/md
3198 u
/etc
/exim
4/conf.d
/transport
/30_backup_maildir
<<EOF
3199 # modified debian maildir transport
3204 # note, no return path or envelope added
3206 directory_mode = 0700
3208 mode_fail_narrower = false
3211 u
/etc
/exim
4/conf.d
/router
/165_backup_local
<<'EOF'
3212 ### router/900_exim4-config_local_user
3213 #################################
3216 debug_print = "R: local_user for $local_part@$domain"
3218 domains = eximbackup.b8.nz
3219 transport = backup_maildir
3222 # Bind to wghole to receive mailbackup.
3223 wgholeip
=$
(sed -rn 's/^ *Address *= *([^/]+).*/\1/p' /etc
/wireguard
/wghole.conf
)
3224 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3225 dc_other_hostnames='eximbackup.b8.nz'
3226 dc_local_interfaces='127.0.0.1;::1;$wgholeip'
3229 # wghole & thus exim will fail to start without internet connectivity.
3230 u
/etc
/systemd
/system
/exim4.service.d
/backup.conf
<<'EOF'
3232 StartLimitIntervalSec=0
3239 else # if $bhost_t; then
3240 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3241 # Note: If theres like a temporary problem where mail gets sent to
3242 # one of these hosts, if exim isnt listening, it will be a temporary error
3243 # instead of a permanent 5xx.
3244 dc_local_interfaces='127.0.0.1;::1'
3246 rm -fv /etc
/systemd
/system
/exim4.service.d
/backup.conf
3248 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3249 dc_eximconfig_configtype='smarthost'
3250 dc_smarthost='$smarthost'
3253 hostname
-f |u
/etc
/mailname
3254 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
3255 # The manpage incorrectly states this will do header rewriting, but
3256 # that only happens if we have dc_hide_mailname is set.
3257 dc_readhost='iankelling.org'
3258 # Only used in case of bounces.
3259 dc_localdelivery='maildir_home'
3267 # ** $MAILHOST|bk, things that belong at the end
3270 # config for the non-nn exim. note, it uses not default dir, but we
3271 # generate that into the default config file
3272 m rsync
-ra --delete --delete-excluded \
3273 --exclude=/conf.d
/router
/161_backup_redir_nn \
3274 --exclude=/conf.d
/router
/186_sentarchive_nn \
3275 --exclude=/conf.d
/main
/000_local-nn
/etc
/exim
4/ /etc
/myexim4
3276 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3277 # this makes it easier to see which exim is doing what
3278 log_file_path = /var/log/exim4/my%s
3283 cat >/etc
/logrotate.d
/myexim
<<'EOF'
3284 /var/log/exim4/mymain /var/log/exim4/myreject {
3292 /var/log/exim4/mypanic {
3303 # If we ever wanted to have a separate spool,
3304 # we could do it like this.
3305 # cat >>/etc/exim4/conf.d/main/000_local-nn <<'EOF'
3306 # spool_directory = /var/spool/myexim4
3308 cat >>/etc
/myexim
4/update-exim4.conf.conf
<<'EOF'
3309 dc_eximconfig_configtype='smarthost'
3310 dc_smarthost='nn.b8.nz'
3315 # config for the non-nn exim
3316 cat >>/etc
/myexim
4/conf.d
/main
/000_local
<<'EOF'
3317 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail2.iankelling.org
3323 u
/etc
/myexim
4/conf.d
/router
/185_sentarchive
<<'EOF'
3326 domains = ! +local_domains
3327 senders = <; *@fsf.org ; *@posteo.net
3328 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3329 data = vojdedIdNejyebni@b8.nz
3334 u
/etc
/myexim
4/conf.d
/router
/160_backup_redir
<<'EOF'
3337 # i dont email myself from my own machine much, so lets ignore that.
3338 domains = ! +local_domains
3339 senders = <; *@fsf.org ; *@posteo.net
3340 condition = ${if !bool{${lookup{$local_part@$domain}lsearch{/etc/exim4/ignore-sent}{true}}}}
3341 # b is just an arbirary short string
3342 data = b@eximbackup.b8.nz
3343 # note, to test this, i could temporarily allow testignore.
3344 # alerts avoids potential mail loop.
3345 local_parts = ! root : ! testignore : ! alerts : ! daylert
3347 errors_to = alerts@iankelling.org
3352 # for bk, we have a exim4in.service that will do this for us.
3353 m update-exim4.conf
-d /etc
/myexim4
3359 # ** bind mount setup
3360 # put spool dir in directory that spans multiple distros.
3361 # based on http://www.postfix.org/qmgr.8.html and my notes in gnus
3364 sdir
=/var
/spool
/exim4
3365 # we only do this if our system has $dir
3367 # this used to do a symlink, but, in the boot logs, /nocow would get mounted succesfully,
3368 # about 2 seconds later, exim starts, and immediately puts into paniclog:
3369 # honVi-0000u3-82 Failed to create directory "/var/spool/exim4/input": No such file or directory
3370 # so, im trying a bind mount to get rid of that.
3371 if [[ -e /nocow
]]; then
3372 if ! grep -Fx "/nocow/exim4 /var/spool/exim4 none bind 0 0" /etc
/fstab
; then
3373 echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc
/fstab
3375 u
/etc
/systemd
/system
/exim4.service.d
/override.conf
<<'EOF'
3377 # without local-fs on exim, we get these kind of errors in paniclog on shutdown:
3378 # Failed to create spool file /var/spool/exim4//input//1jCLxz-0008V4-V9-D: Permission denied
3379 After=local-fs.target
3382 ExecStartPre=/usr/local/bin/exim-nn-iptables
3384 if ! mountpoint
-q $sdir; then
3385 stopifactive exim4 exim4in
3386 if [[ -L $sdir ]]; then
3389 if [[ ! -e $dir && -d $sdir ]]; then
3392 if [[ ! -d $sdir ]]; then
3394 m
chmod 000 $sdir # only want it to be used when its mounted
3402 # ** exim/spool uid setup
3403 # i have the spool directory be common to distro multi-boot, so
3404 # we need the uid to be the same. 608 cuz it's kind of in the middle
3405 # of the free system uids.
3406 IFS
=:; read -r _ _ uid _
< <(getent passwd Debian-exim ||
:) ||
:; unset IFS
3407 IFS
=:; read -r _ _ gid _
< <(getent group Debian-exim ||
:) ||
:; unset IFS
3408 if [[ ! $uid ]]; then
3409 # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options
3410 m adduser
--uid 608 --system --group --quiet --home /var
/spool
/exim4 \
3411 --no-create-home --disabled-login --force-badname Debian-exim
3412 elif [[ $uid != 608 ]]; then
3413 stopifactive exim4 exim4in
3414 m usermod
-u 608 Debian-exim
3415 m groupmod
-g 608 Debian-exim
3416 m usermod
-g 608 Debian-exim
3417 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -uid $uid -execdir chown
-h 608 {} +
3418 m
find / /nocow
-xdev -path .
/var
/tmp
-prune -o -gid $gid -execdir chgrp
-h 608 {} +
3421 # * start / stop services
3423 reifactive dnsmasq nscd
3426 m systemctl daemon-reload
3429 # optimization, this only needs to run once.
3430 if [[ ! -e /sys
/class
/net
/wghole
]]; then
3431 # checking bhost_t is redundant, but could help us catch errors.
3432 if $bhost_t ||
[[ -e /etc
/wireguard
/wghole.conf
]]; then
3433 # todo: in mail-setup, we have a static list of backup hosts, not *y
3434 m systemctl
--now enable wg-quick@wghole
3438 # optimization, this only needs to be run once
3439 if [[ ! -e /var
/lib
/prometheus
/node-exporter
/exim_paniclog.prom
]]; then
3440 sysd-prom-fail-install epanicclean
3441 m systemctl
--now enable epanicclean
3446 /a
/exe
/web-conf apache2 je.b8.nz
3449 /a
/exe
/web-conf apache2 mail2.iankelling.org
3453 # optimization, this only needs to run once.
3454 if [[ ! -e /etc
/exim
4/fullchain.pem
]]; then
3455 m
/a
/bin
/ds
/mail-cert-cron
-1
3456 m systemctl
--now enable mailcert.timer
3461 m systemctl
--now enable mailnn mailnnroute
3464 # we use dns to start wg
3468 m systemctl
--now enable unbound
3472 # If these have changes, id rather manually restart it, id rather
3473 # not restart and cause temporary errors
3477 m systemctl
--now enable $vpnser
3479 if ! systemctl is-active clamav-daemon
>/dev
/null
; then
3480 m systemctl
--now enable clamav-daemon
3481 out
=$
(rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/filesystem
/etc
/systemd
/system
/epanicclean.service
/etc
/systemd
/system
)
3486 # note, this will cause paniclog entries because it takes like 45
3487 # seconds for clamav to start, i use ./epanic-clean to remove
3492 # start spamassassin/dovecot before exim.
3493 sre dovecot spamassassin
3494 # Wait a bit before restarting exim, else I get a paniclog entry
3495 # like: spam acl condition: all spamd servers failed. But I'm tired
3496 # of waiting. I'll deal with this some other way.
3499 m systemctl
--now enable mailclean.timer
3502 # < 2.1 (eg: in t9), uses a different data format which required manual
3503 # migration. dont start if we are running an old version.
3504 if dpkg
--compare-versions "$(dpkg -s radicale | awk '$1 == "Version
:" { print $2 }')" ge
2.1; then
3505 m systemctl
--now enable radicale
3510 # for debugging dns issues
3513 systemctl
enable --now logrotate-fast.timer
3517 # last use of $reload happens in previous block
3518 rm -f /var
/local
/mail-setup-reload
3522 $MAIL_HOST|bk|je|li
)
3523 # on li, these are never started, except $vpnser
3527 soff radicale mailclean.timer dovecot spamassassin
$vpnser mailnn clamav-daemon
3535 m systemctl
--now enable mailbindwatchdog
3538 soff mailbindwatchdog
3547 # * mail monitoring / testing
3549 # note, to test clamav, send an email with body that only contains
3550 # https://en.wikipedia.org/wiki/EICAR_test_file
3551 # which set malware_name to Eicar-Signature
3554 # note: cronjob "ian" also does some important monitoring
3555 # todo: this will sometimes cause an alert because mailtest-check will run
3556 # before we have setup network namespace and spamassassin
3557 u
/etc
/cron.d
/mailtest
<<EOF
3559 PATH=/usr/bin:/bin:/usr/local/bin
3560 MAILTO=daylert@iankelling.org
3561 */5 * * * * $u send-test-forward |& log-once send-test-forward
3562 */10 * * * * root chmod -R g+rw /m/md/bounces |& log-once -1 bounces-chmod
3563 # if a bounce happened yesterday, dont let it slip through the cracks
3564 8 1 * * * root export MAILTO=alerts@iankelling.org; [[ -s /var/log/exim4/mainlog.1 ]] && awk '\$5 == "**"' /var/log/exim4/mainlog.1
3568 m sudo rsync
-ahhi --chown=root
:root
--chmod=0755 \
3569 /b
/ds
/mailtest-check
/b
/ds
/check-remote-mailqs
/usr
/local
/bin
/
3570 u
/etc
/systemd
/system
/mailtest-check.service
<<'EOF'
3572 Description=mailtest-check
3573 After=local-fs.target
3574 StartLimitIntervalSec=0
3578 ExecStart=/usr/local/bin/mailtest-check slow
3583 WantedBy=graphical.target
3585 sysd-prom-fail-install mailtest-check
3589 test_froms
=(ian@iankelling.org z@zroe.org iank@gnu.org
)
3590 test_tos
=(testignore@expertpathologyreview.com testignore@je.b8.nz testignore@amnimal.ninja jtuttle@gnu.org
)
3592 cat >>/etc
/cron.d
/mailtest
<<EOF
3594 0 10 * * 5 root echo "weekly alert. You are not in the matrix."
3595 2 * * * * root check-remote-mailqs |& log-once check-remote-mailqs
3599 test_froms
=(testignore@amnimal.ninja testignore@expertpathologyreview.com
)
3600 test_tos
=(testignore@iankelling.org testignore@je.b8.nz
)
3601 # We dont need to send from different addresses to the same
3602 # address. this breaks down our nice elegant logic of building up
3603 # froms and tos , so I just handle expertpath in a special case
3604 # below and set the to: to be testignore@zroe.org. If we did sent
3605 # that way, it would also mess up our mailtest-check logic that
3606 # finds which messages to check.
3607 # for example: from testignore@amnimal.ninja to: testignore@iankelling.org testignore@zroe.org
3608 # that would become 2 messages and we'd only check 1.
3611 test_froms
=(testignore@je.b8.nz
)
3612 test_tos
=(testignore@iankelling.org testignore@zroe.org testignore@expertpathologyreview.com testignore@amnimal.ninja
)
3616 # Dont put these test messages into the sent folder or else it will
3617 # overwhelm it, plus i dont want to save a copy at all.
3618 # Plus addresses we generally want to ignore.
3619 u
/etc
/exim
4/ignore-sent
<<EOF
3620 $(printf "%s\n" ${test_tos[@]})
3621 vojdedIdNejyebni@b8.nz
3625 cat >/usr
/local
/bin
/send-test-forward
<<'EOF'
3627 # we remove from the queue older than 4.3 minutes since we send every 5 minutes.
3629 $(/usr/sbin/exiqgrep -o 260 -i -r '^(testignore@(iankelling\.org|zroe\.org|expertpathologyreview\.com|amnimal\.ninja|je\.b8\.nz)|jtuttle@gnu\.org)$')
3631 if (( ${#olds[@]} )); then
3632 /usr/sbin/exim -Mrm "${olds[@]}" >/dev/null
3635 for test_from
in ${test_froms[@]}; do
3637 test_to
=${test_tos[0]}
3638 for t
in ${test_tos[@]:1}; do
3642 testignore@expertpathologyreview.com
)
3643 test_to
=testignore@zroe.org
3647 cat >>/usr
/local
/bin
/send-test-forward
<<EOFOUTER
3648 /usr/sbin/exim -odf -f $test_from -t <<EOF
3651 Subject: test \$(date +%Y-%m-%dT%H:%M:%S%z) \$EPOCHSECONDS
3653 /usr/local/bin/send-test-forward
3657 m
chmod +x
/usr
/local
/bin
/send-test-forward
3660 soff mailtest-check.service
3661 rm -fv /etc
/cron.d
/mailtest \
3662 /var
/lib
/prometheus
/node-exporter
/mailtest-check.prom
* \
3663 /var
/local
/cron-errors
/check-remote-mailqs
*
3670 m sudo
-u $u mkdir
-p /home
/$u/.cache
3671 set -- /m
/mucache
/home
/$u/.cache
/mu
/m
/.mu
/home
/$u/.mu
3676 if [[ ! -L $f ]]; then
3677 if [[ -e $f ]]; then
3680 m sudo
-u $u ln -sf -T $target $f
3685 # /etc/alias setup is debian specific, and exim postinst script sets up
3686 # an /etc/alias from root to the postmaster, based on the question
3687 # exim4-config exim4/dc_postmaster, as long as there exists an entry for
3688 # root, or there was no preexisting aliases file. postfix won\'t set up
3689 # a root to $postmaster alias if it\'s already installed. Easiest to
3690 # just set it ourselves.
3692 # debconf question for postmaster:
3693 # Mail for the 'postmaster', 'root', and other system accounts needs to be redirected
3694 # to the user account of the actual system administrator.
3695 # If this value is left empty, such mail will be saved in /var/mail/mail, which is not
3697 # Note that postmaster\'s mail should be read on the system to which it is directed,
3698 # rather than being forwarded elsewhere, so (at least one of) the users listed here
3699 # should not redirect their mail off this machine. A 'real-' prefix can be used to
3700 # force local delivery.
3701 # Multiple user names need to be separated by spaces.
3702 # Root and postmaster mail recipient:
3708 # eval: (outline-minor-mode)
3709 # outline-regexp: "\\( *\\)# [*]\\{1,8\\} "
3711 # this is combined with defining outline-level in init.el