3 # Copyright (C) 2019 Ian Kelling
4 # SPDX-License-Identifier: AGPL-3.0-or-later
6 # todo: sandbox / harden exim:
7 # 1. stop it from running as root. how?
8 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-security_considerations.html
9 # * avoid using .forward files, remove that router
10 # * set deliver_drop_privilege
11 # * set user to run as Debian-exim in systemd
12 # * set port to something like 2500, and forward 25 to 2500 with iptables. same for 587.
13 # https://superuser.com/questions/710253/allow-non-root-process-to-bind-to-port-80-and-443/1334552#1334552
14 # * consider whether other routers like postmaster need modification / removal.
15 # 2. restrict its filesystem access from within systemd
17 # 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.
18 # todo: consider hardening cups listening on 0.0.0.0
19 # todo: stop/disable local apache, and rpc.mountd, and kdeconnect when not in use.
20 # todo: check that spamd and unbound only listen locally.
22 # todo: hosts should only allow external mail that is authed and
23 # destined for backup route. it is a minor issue since traffic is
24 # limited to the wghole network.
26 # todo: emailing info@amnimal.ninja produces a bounce, user doesn't exist
27 # instead of a simple rejection like it should.
29 # todo: auto restart of je on checkrestart
31 # todo: run mailping test after running, or otherwise
32 # clear out terminal alert
34 # todo: reinstall bk with bigger filesystem
36 # todo: on bk, dont send email if mailvpn is not up
38 # todo: mailtest-check should check on bk too
40 # todo: disable postgrey
42 # todo: in testforward-check, we should also look
44 # todo: test that bounces dont help create valid mailtest-check
46 # todo: move mail stuff in distro-end into this file
48 # todo: consider rotating dkim & publishing key so every past email I sent
49 # isnt necessarily signed
51 # todo: consider how to get clamav out of Debian-exim group
52 # so it cant read/write the whole mail spool, for better
55 # todo: create a cronjob to update or warn on expiring dnssec keys
57 # todo: we should test failed mail daily or so
58 # failed cronjob, failed sysd-log-once,
59 # a local bounce from a cronjob, a local bounce
60 # to a bad remote address, perhaps a local failure
61 # when the sending daemon is down.
62 # And send an alert email if no alerts have been sent
63 # in 2 or 3 days or something. todo, test cron mail on li.
65 # todo: look at mailinabox extra dns records, note these changelogs:
66 # - 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.
67 # - 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.
70 # todo: mailtest-check failure on remote hosts is not going to alert me.
72 # todo: test mail failure as well as success.
74 # todo: validate that mailtest-check is doing dnsbl checks.
76 # background: I want to run exim in a network namespace so it can send
77 # and receive through a vpn. This is needed so it can do ipv6, because
78 # outside the namespace if we dont have ipv6, to send ipv6 through the
79 # vpn, we have to send all our ipv6 through the vpn. I did this for a
80 # long time, it was fine, but it causes various pains, like increased
81 # latency, increased recaptcha because my ip is from a data center, just
82 # various issues I dont want on all the time. The problem with the
83 # namespace is that all kinds of programs want to invoke exim, but they
84 # wont be in the namespace. I could replace exim with a wrapper that
85 # jumps into the namespace, i tried that, it works fine. One remaining
86 # problem was that I would have needed to hook into exim upgrades to
87 # move exim and replace it with my wrapper script. Also, my script to
88 # join the namespace is not super reliable because it uses a pgrep.
89 # Instead, I should have created a systemd service for a process that
90 # will never die and just writes its pid somewhere convenient.
95 # user ALL=(ALL) /usr/sbin/exim4
97 # move exim4 to eximian, use this script for exim4:
100 # if ip a show veth1-mail &>/dev/null; then
101 # /usr/sbin/eximian "$@"
105 # if [[ $USER && $USER != root ]]; then
108 # pid=$(pgrep -f "/usr/sbin/openvpn .* --config /etc/openvpn/.*mail.conf")
110 # sudo nsenter -t $pid -n -m sudo -u $USER /usr/sbin/eximian "$@"
112 # nsenter -t $pid -n -m /usr/sbin/eximian "$@"
116 # an alternate solution: there is a small setguid program for
117 # network namespaces in my bookmarks.
119 # However, the solution I went with is: have 2 exim
120 # configs. A nonstandard location for the daemon that runs
121 # in the namespace. For all other invocations, it uses
122 # the default config location, which is altered to be
123 # in a smarthost config which sends mail to the deaemon.
125 # I have a bash function, enn to invoke exim like the daemon is running.
126 # and mailbash to just enter its network namespace.
128 if [ -z "$BASH_VERSION" ]; then echo "error: shell is not bash" >&2; exit 1; fi
132 if [[ -s /usr
/local
/lib
/err
]]; then
133 source /usr
/local
/lib
/err
134 elif [[ -s /a
/bin
/errhandle
/err
]]; then
135 source /a
/bin
/errhandle
/err
137 err
"no err tracing script found"
139 source /a
/bin
/distro-functions
/src
/identify-distros
140 source /a
/bin
/distro-functions
/src
/package-manager-abstractions
142 # has nextcloud_admin_pass in it
143 f
=/p
/c
/machine_specific
/$HOSTNAME/mail
145 # shellcheck source=/p/c/machine_specific/bk/mail
150 [[ $EUID == 0 ]] ||
exec sudo
-E "${BASH_SOURCE[0]}" "$@"
158 Usage: ${0##*/} anything_here_to_debug
159 Setup exim4 & dovecot & related things
161 -h|--help Print help and exit.
166 # debug output if we pass any arg
172 ####### instructions for icedove #####
173 # Incoming mail server: mail.iankelling.org, port 143, username iank, connection security starttls, authentication method normal password,
174 # then click advanced so it accepts it.
175 # we could also just use 127.0.0.1 with no ssl
177 # hamburger -> preferences -> preferences -> advanced tab -> config editor button -> security.ssl.enable_ocsp_must_staple = false
178 # background: dovecot does not yet have ocsp stapling support
179 # reference: https://community.letsencrypt.org/t/simple-guide-using-lets-encrypt-ssl-certs-with-dovecot/2921
181 # for phone, k9mail, same thing but username alerts, pass in ivy-pass.
182 # also, bk.b8.nz for secondary alerts, username is iank. same alerts pass.
183 # fetching mail settings: folder poll frequency 10 minutes
187 # * perstent password instructions
188 # Note: for cert cron, we need to manually run first to accept known_hosts
191 # # for hosts which have all private files I just use the same user
192 # # for other hosts, each one get\'s their own password.
193 # # for generating secure pass, and storing for server too:
196 # apg -m 50 -x 70 -n 1 -a 1 -M CLN >$f
197 # s sed -i "/^$host:/d" /p/c/filesystem/etc/exim4/passwd
198 # echo "$host:$(mkpasswd -m sha-512 -s <$f)" >>/p/c/filesystem/etc/exim4/passwd
199 # #reference: exim4_passwd_client(5)
200 # dir=/p/c/machine_specific/$host/filesystem/etc/exim4
202 # echo "mail.iankelling.org:$host:$(<$f)" > $dir/passwd.client
203 # # then run this script
205 # # dovecot password, i just need 1 as I\'m the only user
206 # mkdir /p/c/filesystem/etc/dovecot
207 # echo "iank:$(doveadm pw -s SHA512-CRYPT)::::::" >>/p/c/filesystem/etc/dovecot/users
209 ####### end perstent password instructions ######
213 # # Remove 1 level of comments in this section, set the domain var
214 # # for the domain you are setting up, then run this and copy dns settings
216 # domain=iankelling.org
217 # c /p/c/filesystem/etc/exim4
218 # # this has several bugs addressed in comments, but it was helpful
219 # # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
221 # openssl genrsa -out $domain-private.pem 2048
222 # # Then, to get the public key strings to put in bind:
224 # # selector is needed for having multiple keys for one domain.
225 # # I dun do that, so just use a static one: li
226 # # Debadmin page does not have v=, fastmail does, and this
227 # # says it\'s recommended in 3.6.1, default is DKIM1 anyways.
228 # # https://www.ietf.org/rfc/rfc6376.txt
229 # # Join and print all but first and last line.
230 # # last line: swap hold & pattern, remove newlines, print.
231 # # lines 2+: append to hold space
232 # echo "bind txt record: remember to truncate $domain so its relative to the bind zone"
234 # a._domainkey.$domain TXT (
235 # "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')" )
237 # # sed explanation: skip the first few lines, then put them into the hold space, then
238 # # on the last line, back to the patern space, remove the newlines, then add a newline
239 # # at the last char - 240, because bind txt records need strings <=255 chars,
240 # # other dkim stuff at the begining is is 25 chars, and the pubkey is 393, so this
241 # # leaves us a bit of extra room at the end and a bunch at the beginning.
243 # # selector was also put into /etc/exim4/conf.d/main/000_local,
247 # # 2017-02 dmarc policies:
248 # # host -t txt _dmarc.gmail.com
249 # # yahoo: p=reject, hotmail: p=none, gmail: p=none, fastmail none for legacy reasons
250 # # there were articles claiming gmail would be changing
251 # # to p=reject, in early 2017, which didn\'t happen. I see no sources on them. It\'s
252 # # expected to cause problems
253 # # with a few old mailing lists, copying theirs for now.
255 # echo "dmarc dns, name: _dmarc value: v=DMARC1; p=none; rua=mailto:mailauth-reports@$domain"
259 # # 2017-02 spf policies:
260 # # host -t txt lists.fedoraproject.org
261 # # google ~all, hotmail ~all, yahoo: ?all, fastmail ?all, outlook ~all
262 # # i include fastmail\'s settings, per their instructions,
263 # # and follow their policy. In mail in a box, or similar instructions,
264 # # I\'ve seen recommended to not use a restrictive policy.
266 # # to check if dns has updated, you do
267 # host -a mesmtp._domainkey.$domain
270 # # setting it to iankelling.org would work the same, but this
271 # # is more flexible, I could change where mail.iankelling.org pointed.
273 # mx records, 2 records each, for * and empty domain
274 # pri 10 mail.iankelling.org
278 # from brc2, run dnsecgen then dsign, update named.local.conf, publish keys to registrar
280 # * functions & constants
283 m
() { printf "$pre %s\n" "$*"; "$@"; }
284 e
() { printf "$pre %s\n" "$*"; }
285 err
() { printf "$pre %s\n" "$*" >&2; exit 1; }
288 # This file is so if we fail in the middle and rerun, we dont lose state
289 if [[ -e /var
/local
/mail-setup-reload
]]; then
293 local tmp tmpdir dest
="$1"
294 local base
="${dest##*/}"
299 tmp
=$
(rsync
-ic $tmpdir/"$base" "$dest")
303 if [[ $dest == /etc
/systemd
/system
/* ]]; then
304 touch /var
/local
/mail-setup-reload
311 key
="$1" value
="$2" section
="$3"
312 file="/etc/radicale/config"
313 sed -ri "/ *\[$section\]/,/^ *\[[^]]+\]/{/^\s*${key}[[:space:]=]/d};/ *\[$section\]/a $key = $value" "$file"
317 # ignore services that dont exist
318 if systemctl
cat $service &>/dev
/null
; then
319 m systemctl disable
--now $service
325 m systemctl restart
$service
326 m systemctl
enable $service;
330 [[ $HOSTNAME == "$MAIL_HOST" ]]
332 e
() { printf "%s\n" "$*"; }
335 if systemctl is-active
$service >/dev
/null
; then
336 m systemctl restart
$service
342 if systemctl is-active
$service >/dev
/null
; then
343 m systemctl stop
$service
348 mxhost
=mx.iankelling.org
352 # old setup. left as comment for example
353 # mxhost=mail.messagingengine.com
355 # forward=ian@iankelling.org
357 smarthost
="$mxhost::$mxport"
358 uhome
=$
(eval echo ~
$u)
360 # Somehow on one machine, a file got written with 664 perms.
361 # just being defensive here.
364 source /a
/bin
/bash_unpublished
/source-state
365 if [[ ! $MAIL_HOST ]]; then
366 err
"\$MAIL_HOST not set"
372 kd|frodo|x2|x3|kw|sy|bo
)
378 # * Install universal packages
381 # installs epanicclean
382 /a
/bin
/ds
/install-my-scripts
384 if [[ $
(debian-codename-compat
) == bionic
]]; then
385 cat >/etc
/apt
/preferences.d
/spamassassin
<<'EOF'
386 Package: spamassassin sa-compile spamc
387 Pin: release n=focal,o=Ubuntu
392 # light version of exim does not have sasl auth support.
393 pi-nostart exim4 exim4-daemon-heavy spamassassin openvpn unbound clamav-daemon wireguard
395 # note: pyzor debian readme says you need to run some initialization command
397 pi spf-tools-perl p0f postgrey pyzor razor jq moreutils certbot
398 # bad packages that sometimes get automatically installed
399 pu openresolv resolvconf
404 if [[ $
(debian-codename
) == etiona
]]; then
405 # ip6tables stopped loading on boot. openvpn has reduced capability set,
406 # so running iptables as part of openvpn startup wont work. This should do it.
407 pi iptables-persistent
408 cat >/etc
/iptables
/rules.v6
<<'EOF'
415 m ip6tables
-S >/dev
/null
418 # our nostart pi fails to avoid enabling
421 # * Mail clean cronjob
423 i
/etc
/systemd
/system
/mailclean.timer
<<'EOF'
425 Description=Run mailclean daily
431 WantedBy=timers.target
434 i
/etc
/systemd
/system
/mailclean.service
<<EOF
436 Description=Delete and archive old mail files
437 After=multi-user.target
442 ExecStart=/usr/local/bin/sysd-mail-once mailclean /a/bin/distro-setup/mailclean
448 i
/etc
/default
/postgrey
<<'EOF'
449 POSTGREY_OPTS="--exim --unix=/var/run/postgrey/postgrey.sock --retry-window=4 --max-age=60"
454 m usermod
-a -G Debian-exim clamav
456 i
/etc
/systemd
/system
/clamav-daemon.service.d
/fix.conf
<<EOF
458 ExecStartPre=-/bin/mkdir /var/run/clamav
459 ExecStartPre=/bin/chown clamav /var/run/clamav
465 #vpnser=mailvpn.service
466 # todo: this hangs if it cant resolv the endpoint. we
467 # want it to just retry in the background.
468 vpnser
=wg-quick@wgmail.service
472 rsync
-aiSAX --chown=root
:root
--chmod=g-s
/p
/c
/filesystem
/etc
/wireguard
/ /etc
/wireguard
473 bindpaths
="/etc/127.0.0.1-resolv:/run/systemd/resolve /etc/basic-nsswitch:/etc/resolved-nsswitch:norbind"
476 bindpaths
="/etc/10.173.8.1-resolv:/etc/127.0.0.1-resolv"
479 d
=/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/wireguard
/
481 rsync
-aiSAX --chown=root
:root
--chmod=g-s
$d /etc
/wireguard
489 i
/etc
/systemd
/system
/wg-quick@wgmail.service.d
/override.conf
<<EOF
491 Requires=mailnn.service
492 After=network.target mailnn.service
493 JoinsNamespaceOf=mailnn.service
494 BindsTo=mailnn.service
498 # i dont think we need any of these, but it doesnt hurt to stay consistent
505 # https://selivan.github.io/2017/12/30/systemd-serice-always-restart.html
506 i
/etc
/systemd
/system
/mailvpn.service
<<EOF
508 Description=OpenVPN tunnel for mail
509 After=syslog.target network-online.target mailnn.service
510 Wants=network-online.target
511 Documentation=man:openvpn(8)
512 Documentation=https://community.openvpn.net/openvpn/wiki/Openvpn24ManPage
513 Documentation=https://community.openvpn.net/openvpn/wiki/HOWTO
514 # needed to continually restatr
515 JoinsNamespaceOf=mailnn.service
516 BindsTo=mailnn.service
517 StartLimitIntervalSec=0
521 RuntimeDirectory=openvpn-client
522 RuntimeDirectoryMode=0710
523 WorkingDirectory=/etc/openvpn/client
524 ExecStart=/usr/sbin/openvpn --suppress-timestamps --nobind --config /etc/openvpn/client/mail.conf
525 #CapabilityBoundingSet=CAP_IPC_LOCK CAP_NET_ADMIN CAP_NET_RAW CAP_SETGID CAP_SETUID CAP_SYS_CHROOT CAP_DAC_OVERRIDE
527 # DeviceAllow=/dev/null rw
528 # DeviceAllow=/dev/net/tun rw
530 # in the network namespace, we cant connect to systemd-resolved on 127.0.0.53,
532 # https://unix.stackexchange.com/questions/445782/how-to-allow-systemd-resolved-to-listen-to-an-interface-other-than-loopback
533 # there is a workaround there, but i dont think its really worth it,
534 # the mail server is fine with a static dns anyways.
535 # This thread is also interesting,
536 # https://github.com/slingamn/namespaced-openvpn/issues/7
537 # todo: the iptables rule at the bottom could be useful to prevent
538 # dns from leaking in my network namespaced vpn.
539 # I also like the idea of patching systemd-resolved so it
540 # will listen on other interfaces, but its not worth my time.
543 # time to sleep before restarting a service
547 WantedBy=multi-user.target
550 i
/etc
/systemd
/system
/mailnnroute.service
<<'EOF'
552 Description=Network routing for mailnn
553 After=syslog.target network-online.target mailnn.service
554 Wants=network-online.target
555 JoinsNamespaceOf=mailnn.service
556 BindsTo=mailnn.service
557 StartLimitIntervalSec=0
563 ExecStart=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns -n 10.173.8 start mail
564 ExecStop=/usr/bin/flock -w 20 /tmp/newns.flock /a/bin/newns/newns stop mail
570 WantedBy=multi-user.target
574 i
/etc
/systemd
/system
/mailnn.service
<<'EOF'
576 Description=Network Namespace for mail vpn service that will live forever and cant fail
577 After=syslog.target network-online.target
578 Wants=network-online.target
583 ExecStart=/bin/sleep infinity
586 WantedBy=multi-user.target
589 i
/etc
/systemd
/system
/mailbindwatchdog.service
<<EOF
591 Description=Watchdog to restart services relying on systemd-resolved dir
592 After=syslog.target network-online.target
593 Wants=network-online.target
594 BindsTo=mailnn.service
598 ExecStart=/usr/local/bin/mailbindwatchdog $vpnser ${nn_progs[@]} unbound.service radicale.service
600 # time to sleep before restarting a service
604 WantedBy=multi-user.target
610 rm -fv /etc
/systemd
/system
/openvpn-client-mail@.service
612 # We use a local unbound because systemd-resolved wont accept our
613 # request, it will only listen to 127.0.0.53 in the main network
614 # namespace, and rejected feature requests to change that (although I
615 # could change the code and recompile), but anyways, that could answer
616 # with things specific to the lan that aren't applicable in this
617 # namespace, and since unbound is a recursive resolver, it means we just
618 # use our own ip against dnsbl rate limits.
620 # If we ever notice this change, chattr +i on it
621 # trust-ad is used in t10+, glibc 2.31
623 i
/etc
/127.0.0.1-resolv/stub-resolv.conf
<<'EOF'
625 options edns0 trust-ad
628 i
/etc
/127.0.0.53-resolv/stub-resolv.conf
<<'EOF'
629 nameserver 127.0.0.53
630 options edns0 trust-ad
634 i
/etc
/10.173.8.1-resolv/stub-resolv.conf
<<'EOF'
635 nameserver 10.173.8.1
636 options edns0 trust-ad
639 # this is just a bug fix for trisquel.
640 f
=/etc
/apparmor.d
/usr.sbin.unbound
641 line
="/usr/sbin/unbound flags=(attach_disconnected) {"
642 if ! grep -qFx "$line" $f; then
643 badline
="/usr/sbin/unbound {"
644 if ! grep -qFx "$badline" $f; then
645 err expected line
in $f not found
647 sed -i "s,^$badline$,$line," $f
648 if systemctl is-active apparmor
&>/dev
/null
; then
649 m systemctl reload apparmor
653 # note: anything added to nn_progs needs corresponding rm
654 # down below in the host switch
657 # Note dovecots lmtp doesnt need to be in the same nn to accept delivery.
658 # Its in the nn so remote clients can connect to it.
659 nn_progs
+=(spamassassin dovecot
)
664 i
/etc
/systemd
/system
/unbound.service.d
/nn.conf
<<EOF
667 JoinsNamespaceOf=mailnn.service
668 BindsTo=mailnn.service
669 StartLimitIntervalSec=0
673 # note the nsswitch bind is actually not needed for bk, but
674 # its the same file so it does no harm.
681 # sooo, there are a few ways to get traffic from the mail network
682 # namespace to go over the wghole.
684 #1: unify the mail vpn and wghole
685 # into 1 network. this seems simple and logical, so I'm doing it.
686 # One general downside is tying things together, if I need to mess
687 # with one thing, it breaks the other. Oh well for now.
689 # 2. We can route 10.5.3.0/24 out of the mail nn and nat it into wghole.
691 # 3. We can setup the routing to happen on li, which seemed like I
692 # just needed to add 10.8.0.4/24 to AllowedIPs in at least the
693 # wghole clients, but I think that is kind of hacky and breaks ipv4
694 # routing within the mailvpn, it happened to work just because exim
695 # prefers ipv6 and that was also available in the mailvpn.
697 # 4. Put the hole interface into the mail network namespace. This
698 # doesn't work if the mail vpn is wg. For openvpn, it bypasses the
699 # vpn routing and establishes a direct connection. I only use the
700 # hole vpn for randomish things, it should be fine to join the mail
701 # nn for that. There should be some way to fix the routing issue
702 # by doing manual routing, but that doesn't seem like a good use of time.
704 # https://www.wireguard.com/netns/#
706 # for wireguard debugging
707 # echo module wireguard +p > /sys/kernel/debug/dynamic_debug/control
712 for unit
in ${nn_progs[@]}; do
713 i
/etc
/systemd
/system
/$unit.service.d
/nn.conf
<<EOF
715 # commented for old openvpn
717 After=network.target mailnn.service $vpnser
718 JoinsNamespaceOf=mailnn.service
719 BindsTo=mailnn.service
720 StartLimitIntervalSec=0
724 # note the nsswitch bind is actually not needed for bk, but
725 # its the same file so it does no harm.
734 for unit
in exim4 spamassassin dovecot unbound
; do
735 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
744 # * spamassassin config
745 i
/etc
/sysctl.d
/80-iank-mail.conf
<<'EOF'
747 net.netfilter.nf_conntrack_tcp_timeout_close_wait = 120
753 i
/etc
/spamassassin
/mylocal.cf
<<'EOF'
754 # this is mylocal.cf because the normal local.cf has a bunch of upstream stuff i dont want to mess with
756 # /usr/share/doc/exim4-base/README.Debian.gz:
757 # SpamAssassin's default report should not be used in a add_header
758 # statement since it contains empty lines. (This triggers e.g. Amavis'
759 # warning "BAD HEADER SECTION, Improper folded header field made up
760 # entirely of whitespace".) This is a safe, terse alternative:
761 clear_report_template
762 report (_SCORE_ / _REQD_ requ) _TESTSSCORES(,)_ autolearn=_AUTOLEARN
763 uridnsbl_skip_domain iankelling.org
764 uridnsbl_skip_domain amnimal.ninja
765 uridnsbl_skip_domain expertpathologyreview.com
766 uridnsbl_skip_domain zroe.org
769 # 2020-10-19 remove old file. remove this when all hosts updated
770 rm -fv /etc
/systemd
/system
/spamddnsfix.
{timer
,service
}
772 i
/etc
/default
/spamassassin
<<'EOF'
773 # defaults plus debugging flags for an issue im having
774 OPTIONS="--create-prefs --max-children 5 --helper-home-dir"
775 PIDFILE="/var/run/spamd.pid"
777 NICE="--nicelevel 15"
780 ##### end spamassassin config
784 if [[ -e /p
/c
/filesystem
]]; then
785 # note, man openvpn implies we could just call mail-route on vpn startup/shutdown with
786 # systemd, buuut it can remake the tun device unexpectedly, i got this in the log
787 # after my internet was down for a bit:
788 # NOTE: Pulled options changed on restart, will need to close and reopen TUN/TAP device.
789 m
/a
/exe
/vpn-mk-client-cert
-b mailclient
-n mail li.iankelling.org
793 if [[ ! -e /etc
/openvpn
/client
/mail.conf
]]; then
794 echo "$0: error: first, on a system with /p/c/filesystem, run mail-setup, or the vpn-mk-client-cert line above this err" 2>&2
800 m rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/mail-cert-cron
/usr
/local
/bin
802 i
/etc
/systemd
/system
/mailcert.service
<<'EOF'
804 Description=Mail cert rsync
805 After=multi-user.target
809 ExecStart=/usr/local/bin/sysd-mail-once mailcert /usr/local/bin/mail-cert-cron
811 i
/etc
/systemd
/system
/mailcert.timer
<<'EOF'
813 Description=Run mail-cert once a day
819 WantedBy=timers.target
823 wghost
=${HOSTNAME}wg.b8.nz
824 if $bhost_t && [[ ! -e /etc
/exim
4/certs
/$wghost/privkey.pem
]]; then
825 certbot
-n --manual-public-ip-logging-ok --eff-email --agree-tos -m letsencrypt@iankelling.org \
826 certonly
--manual --preferred-challenges=dns \
827 --manual-auth-hook /a
/bin
/ds
/le-dns-challenge \
828 --manual-cleanup-hook /a
/bin
/ds
/le-dns-challenge-cleanup \
829 --deploy-hook /a
/bin
/ds
/le-exim-deploy
-d $wghost
832 # * common exim4 config
835 ## old, not using forward files anymore
836 rm -fv $uhome/.forward
/root
/.forward
839 # Make all system users be aliases. preventative
840 # prevents things like cron mail for user without alias
841 awk 'BEGIN { FS = ":" } ; $6 !~ /^\/home/ || $7 ~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
842 if [[ ! $user ]]; then
845 if ! grep -q "^$user:" /etc
/aliases
; then
846 echo "$user: root" |m
tee -a /etc
/aliases
851 awk 'BEGIN { FS = ":" } ; $6 ~ /^\/home/ && $7 !~ /\/nologin$/ { print $1 }' /etc
/passwd|
while read -r user
; do
854 sed -i "/^user:/d" /etc
/aliases
857 if ! grep -q "^$user:" /etc
/aliases
; then
858 echo "$user: root" |m
tee -a /etc
/aliases
864 if ! grep -q "^ncsoft:" /etc
/aliases
; then
865 echo "ncsoft: graceq2323@gmail.com" |m
tee -a /etc
/aliases
870 m gpasswd
-a iank adm
#needed for reading logs
872 ### make local bounces go to normal maildir
873 # local mail that bounces goes to /Maildir or /root/Maildir
874 dirs=(/m
/md
/bounces
/{cur
,tmp
,new
})
875 m mkdir
-p ${dirs[@]}
876 m chown iank
:iank
/m
/m
/md
877 m
ln -sfT /m
/md
/m
/iank
879 m chown
-R $u:Debian-exim
/m
/md
/bounces
880 m
chmod 775 ${dirs[@]}
881 m usermod
-a -G Debian-exim
$u
882 for d
in /Maildir
/root
/Maildir
; do
883 if [[ ! -L $d ]]; then
886 m
ln -sf -T /m
/md
/bounces
$d
889 # dkim, client passwd file
890 files
=(/p
/c
/machine_specific
/$HOSTNAME/filesystem
/etc
/exim
4/*)
891 f
=/p
/c
/filesystem
/etc
/exim
4/passwd.client
895 if (( ${#files[@]} )); then
896 m rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 \
897 ${files[@]} /etc
/exim4
900 # by default, only 10 days of logs are kept. increase that.
901 m
sed -ri 's/^(\s*rotate\s).*/\11000/' /etc
/logrotate.d
/exim4-base
904 ## https://blog.dhampir.no/content/make-exim4-on-debian-respect-forward-and-etcaliases-when-using-a-smarthost
905 # i only need .forwards, so just doing that one.
906 cd /etc
/exim
4/conf.d
/router
907 b
=userforward_higher_priority
908 # replace the router name so it is unique
909 sed -r s
/^
\\S
+:/$b:/ 600_exim4-config_userforward
>175_
$b
911 # todo, consider 'separate' in etc/exim4.conf, could it help on busy systems?
913 # alerts is basically the postmaster address
914 m
sed -i --follow-symlinks -f - /etc
/aliases
<<EOF
915 \$a root: alerts@iankelling.org
919 cat >/etc
/exim
4/conf.d
/rewrite
/34_iank_rewriting
<<'EOF'
920 ncsoft@zroe.org graceq2323@gmail.com hE
924 rm -fv /etc
/exim
4/conf.d
/retry
/37_retry
926 cat >/etc
/exim
4/conf.d
/retry
/17_retry
<<'EOF'
927 # Retry fast for my own domains
928 iankelling.org * F,1d,10m;F,14d,1h
929 amnimal.ninja * F,1d,10m;F,14d,1h
930 expertpathologyreview.com * F,1d,10m;F,14d,1h
931 je.b8.nz * F,1d,10m;F,14d,1h
932 zroe.org * F,1d,10m;F,14d,1h
933 eximbackup.b8.nz * F,1d,4m;F,14d,1h
937 rm -vf /etc
/exim
4/conf.d
/main
/000_localmacros
# old filename
938 cat >/etc
/exim
4/conf.d
/main
/000_local
<<EOF
939 MAIN_TLS_ENABLE = true
941 # require tls connections for all smarthosts
942 REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS = *
944 # debian exim config added this in 2016 or so?
945 # it's part of the smtp spec, to limit lines to 998 chars
946 # but a fair amount of legit mail does not adhere to it. I don't think
947 # this should be default, like it says in
948 # https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=828801
949 # todo: the bug for introducing this was about headers, but
950 # the fix maybe is for all lines? one says gmail rejects, the
951 # other says gmail does not reject. figure out and open a new bug.
952 IGNORE_SMTP_LINE_LENGTH_LIMIT = true
955 MAIN_LOG_SELECTOR = +all
957 # Based on spec, seems like a good idea to be nice.
958 smtp_return_error_details = true
960 # normally empty, I set this so I can set the envelope address
961 # when doing mail redelivery to invoke filters. Also allows
962 # me exiqgrep and stuff.
963 MAIN_TRUSTED_GROUPS = $u
965 # default is 10. when exim has been down for a bit, fsf mailserver
966 # will do a big send in one connection, then exim decides to put
967 # the messages in the queue instead of delivering them, to avoid
968 # spawning too many delivery processes. This is the same as the
969 # fsfs value. And the corresponding one for how many messages
970 # to send out in 1 connection remote_max_parallel = 256
971 smtp_accept_queue_per_connection = 500
978 # https://debian-administration.org/article/718/DKIM-signing_outgoing_mail_with_exim4
979 # and its best for this to align https://tools.ietf.org/html/rfc7489#page-8
980 # There could be some circumstance when the
981 # from: isnt our domain, but the envelope sender is
982 # and so still want to sign, but I cant think of any case.
983 DKIM_DOMAIN = \${lc:\${domain:\$rh_from:}}
984 # The file is based on the outgoing domain-name in the from-header.
986 DKIM_PRIVATE_KEY = \${if exists{/etc/exim4/\${dkim_domain}-private.pem} {/etc/exim4/\${dkim_domain}-private.pem}}
988 # most of the ones that gmail seems to use.
989 # Exim has horrible default of signing unincluded
990 # list- headers since they got mentioned in an
991 # rfc, but this messes up mailing lists, like gnu/debian which want to
992 # keep your dkim signature intact but add list- headers.
993 DKIM_SIGN_HEADERS = mime-version:in-reply-to:references:from:date:subject:to
995 domainlist local_hostnames = ! je.b8.nz : ! bk.b8.nz : *.b8.nz : b8.nz
997 hostlist iank_trusted = <; \\
1001 72.14.176.105 ; 2600:3c00::f03c:91ff:fe6d:baf8 ; \\
1002 # li_vpn_net li_vpn_net_ip6s
1003 10.8.0.0/24; 2600:3c00:e000:280::/64 ; 2600:3c00:e002:3800::/56 ; \\
1005 85.119.83.50 ; 2001:ba8:1f1:f0c9::2 ; \\
1007 85.119.82.128 ; 2001:ba8:1f1:f09d::2 ; \\
1008 # fsf_mit_net fsf_mit_net_ip6 fsf_net fsf_net_ip6 fsf_office_net
1009 18.4.89.0/24 ; 2603:3005:71a:2e00::/64 ; 209.51.188.0/24 ; 2001:470:142::/48 ; 74.94.156.208/28
1012 rm -fv /etc
/exim
4/rcpt_local_acl
# old path
1014 i
/etc
/exim
4/conf.d
/local_deny_exceptions_acl
<<'EOF'
1015 # This acl already exists in rcpt, this just makes it more widespread.
1016 # See the comment there for its rationale. The reason it needs to be
1017 # more widespread is that I've turned on sender verification, but cron
1018 # emails can fail sender verification since I may be in a network that
1019 # doesn't have my local dns.
1023 # i setup a local programs smtp to mail.iankelling.org, this
1024 # skips sender verification for it.
1029 rm -fv /etc
/exim
4/data_local_acl
# old path
1030 i
/etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
1031 # Except for the "condition =", this was
1032 # a comment in the check_data acl. The comment about this not
1033 # being suitable has been changed in newer exim versions. The only thing
1034 # related I found was to
1035 # add the condition =, cuz spamassassin has problems with big
1036 # messages and spammers don't bother with big messages,
1037 # but I've increased the size from 10k
1038 # suggested in official docs, and 100k in the wiki example because
1039 # those docs are rather old and I see a 110k spam message
1040 # pretty quickly looking through my spam folder.
1043 !hosts = +iank_trusted
1044 remove_header = X-Spam_score: X-Spam_score_int : X-Spam_bar : X-Spam_report
1047 !hosts = +iank_trusted
1048 condition = ${if < {$message_size}{5000K}}
1049 spam = Debian-exim:true
1050 add_header = X-Spam_score_int: $spam_score_int
1051 add_header = X-Spam_score: $spam_score
1052 add_header = X-Spam_bar: $spam_bar
1053 add_header = X-Spam_report: $spam_report
1054 add_header = X-Spam_action: $spam_action
1057 condition = ${if def:malware_name}
1058 remove_header = Subject:
1059 add_header = Subject: [Clamav warning: $malware_name] $h_subject
1060 log_message = heuristic malware warning: $malware_name
1063 # spf = pass:fail:softfail:none:neutral:permerror:temperror
1064 # dmarc_status = reject:quarantine
1065 # add_header = Reply-to: dmarctest@iankelling.org
1069 i
/etc
/exim
4/conf.d
/router
/900_exim4-config_local_user
<<EOF
1070 ### router/900_exim4-config_local_user
1071 #################################
1073 # This router matches local user mailboxes. If the router fails, the error
1074 # message is "Unknown user".
1076 debug_print = "R: local_user for \$local_part@\$domain"
1078 domains = +local_domains
1079 # ian: default file except where mentioned.
1080 # ian: commented this. I get all local parts. for bk, an rcpt
1081 # check handles checking with dovecot, and the only router
1082 # after this is root.
1083 # local_parts = ! root
1084 transport = LOCAL_DELIVERY
1085 cannot_route_message = Unknown user
1086 # ian: added for + addressing.
1087 local_part_suffix = +*
1088 local_part_suffix_optional
1090 i
/etc
/exim
4/conf.d
/transport
/30_exim4-config_dovecot_lmtp
<<'EOF'
1093 socket = /var/run/dovecot/lmtp
1094 #maximum number of deliveries per batch, default 1
1099 i
/etc
/exim
4/conf.d
/transport
/30_remote_smtp_vpn
<<'EOF'
1100 # same as debians 30_exim4-config_remote_smtp, but
1101 # with interface added at the end.
1104 debug_print = "T: remote_smtp_vpn for $local_part@$domain"
1106 .ifndef IGNORE_SMTP_LINE_LENGTH_LIMIT
1107 message_size_limit = ${if > {$max_received_linelength}{998} {1}{0}}
1109 .ifdef REMOTE_SMTP_HOSTS_AVOID_TLS
1110 hosts_avoid_tls = REMOTE_SMTP_HOSTS_AVOID_TLS
1112 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1113 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1115 .ifdef REMOTE_SMTP_RETURN_PATH
1116 return_path = REMOTE_SMTP_RETURN_PATH
1118 .ifdef REMOTE_SMTP_HELO_DATA
1119 helo_data=REMOTE_SMTP_HELO_DATA
1122 dkim_domain = DKIM_DOMAIN
1124 .ifdef DKIM_SELECTOR
1125 dkim_selector = DKIM_SELECTOR
1127 .ifdef DKIM_PRIVATE_KEY
1128 dkim_private_key = DKIM_PRIVATE_KEY
1131 dkim_canon = DKIM_CANON
1134 dkim_strict = DKIM_STRICT
1136 .ifdef DKIM_SIGN_HEADERS
1137 dkim_sign_headers = DKIM_SIGN_HEADERS
1139 .ifdef TLS_DH_MIN_BITS
1140 tls_dh_min_bits = TLS_DH_MIN_BITS
1142 .ifdef REMOTE_SMTP_TLS_CERTIFICATE
1143 tls_certificate = REMOTE_SMTP_TLS_CERTIFICATE
1145 .ifdef REMOTE_SMTP_PRIVATEKEY
1146 tls_privatekey = REMOTE_SMTP_PRIVATEKEY
1148 .ifdef REMOTE_SMTP_HOSTS_REQUIRE_TLS
1149 hosts_require_tls = REMOTE_SMTP_HOSTS_REQUIRE_TLS
1151 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1152 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1154 interface = <; 10.8.0.4 ; 2600:3c00:e002:3800::4
1157 i
/etc
/exim
4/conf.d
/transport
/30_smarthost_dkim
<<'EOF'
1158 # ian: this is remote_smtp_smarthost plus the dkim parts from remote_smtp
1161 debug_print = "T: remote_smtp_smarthost for $local_part@$domain"
1164 .ifndef IGNORE_SMTP_LINE_LENGTH_LIMIT
1165 message_size_limit = ${if > {$max_received_linelength}{998} {1}{0}}
1167 hosts_try_auth = <; ${if exists{CONFDIR/passwd.client} \
1169 ${lookup{$host}nwildlsearch{CONFDIR/passwd.client}{$host_address}}\
1173 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1174 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
1176 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1177 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
1179 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1180 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
1182 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
1183 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
1185 .ifdef REMOTE_SMTP_HEADERS_REWRITE
1186 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
1188 .ifdef REMOTE_SMTP_RETURN_PATH
1189 return_path = REMOTE_SMTP_RETURN_PATH
1191 .ifdef REMOTE_SMTP_HELO_DATA
1192 helo_data=REMOTE_SMTP_HELO_DATA
1194 .ifdef TLS_DH_MIN_BITS
1195 tls_dh_min_bits = TLS_DH_MIN_BITS
1197 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1198 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
1200 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1201 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
1203 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1204 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
1207 dkim_domain = DKIM_DOMAIN
1209 .ifdef DKIM_SELECTOR
1210 dkim_selector = DKIM_SELECTOR
1212 .ifdef DKIM_PRIVATE_KEY
1213 dkim_private_key = DKIM_PRIVATE_KEY
1216 dkim_canon = DKIM_CANON
1219 dkim_strict = DKIM_STRICT
1221 .ifdef DKIM_SIGN_HEADERS
1222 dkim_sign_headers = DKIM_SIGN_HEADERS
1227 cat >/etc
/exim
4/update-exim4.conf.conf
<<'EOF'
1228 # default stuff, i havent checked if its needed
1229 dc_minimaldns='false'
1232 dc_use_split_config='true'
1233 dc_mailname_in_oh='true'
1239 if ! mountpoint
/o
; then
1240 echo "error /o is not a mountpoint" >&2
1244 # davx/davdroid setup instructions at the bottom
1247 # http://radicale.org/user_documentation/
1248 # https://davdroid.bitfire.at/configuration/
1250 # note on debugging: if radicale can't bind to the address,
1251 # in the log it just says "Starting Radicale". If you run
1252 # it in the foreground, it will give more info. Background
1253 # plus debug does not help.
1254 # sudo -u radicale radicale -D -f
1256 # created password file with:
1257 # htpasswd -c /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1258 # chmod 640 /p/c/machine_specific/li/filesystem/etc/caldav-htpasswd
1259 # # setup chgrp www-data in ./conflink
1263 i
/etc
/systemd
/system
/radicale.service.d
/override.conf
<<EOF
1265 # this unit is configured to start and stop whenever
1268 After=network.target network-online.target mailnn.service $vpnser
1271 Wants=network-online.target
1272 JoinsNamespaceOf=mailnn.service
1273 StartLimitIntervalSec=0
1277 BindPaths=$bindpaths
1279 # time to sleep before restarting a service
1288 # use persistent uid/gid
1289 IFS
=:; read -r _ _ uid _
< <(getent passwd radicale
); unset IFS
1290 IFS
=:; read -r _ _ gid _
< <(getent group radicale
); unset IFS
1291 if [[ $uid != 609 ]]; then
1292 m systemctl stop radicale ||
:
1293 m usermod
-u 609 radicale
1294 m groupmod
-g 609 radicale
1295 m usermod
-g 609 radicale
1297 m
find /o
/radicale
-xdev -exec chown
-h 609 {} +
1298 m
find /o
/radicale
-xdev -exec chgrp
-h 609 {} +
1301 # I moved /var/lib/radicale after it's initialization.
1302 # I did a sudo -u radicale git init in the collections subfolder
1303 # after it gets created, per the git docs.
1304 m
/a
/exe
/lnf
-T /o
/radicale
/var
/lib
/radicale
1306 # from https://www.williamjbowman.com/blog/2015/07/24/setting-up-webdav-caldav-and-carddav-servers/
1308 # more config is for li in distro-end
1310 # coment in this file says this is needed for it to run on startup
1311 sed -ri 's/^\s*#+\s*(ENABLE_RADICALE\s*=\s*yes\s*)/\1/' /etc
/default
/radicale
1313 # comments say default is 0.0.0.0:5232
1314 m setini hosts
10.8.0.4:5232 server
1315 # https://radicale.org/2.1.html
1316 m setini
type http_x_remote_user auth
1319 # disable power management feature, set to 240 min sync interval,
1320 # so it shouldn't be bad.
1322 # davdroid from f-druid.
1323 # login with url and user name
1324 # url https://cal.iankelling.org/ian
1326 # pass, see password manager for radicale
1328 # add account dialog:
1330 # set account name as ian@iankelling.org, per help text below the
1333 # switch to groups are per-contact categories,
1334 # per https://davdroid.bitfire.at/configuration/radicale/
1337 # After setting up account, I added one address book, named
1338 # ianaddr. calender was already created, named ian. checked boxes under
1341 # To restore from old phone to new phone, I wiped all data out, then copied over the newly created files. I think
1343 # ignorable background info:
1345 # opentasks uses the calendar file.
1347 # The address book I created got a uuid as a name for the file. Note
1348 # the .props file says if it's a calendar or addressbook.
1350 # When debugging, tailed /var/log/radicale/radicale.log and apache log,
1351 # both show the requests happening. Without creating the address book,
1352 # after creating a contact, a sync would delete it.
1354 # Address books correspond to .props files in the radicale dir.
1356 # Some background is here,
1357 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1358 # which shows separate vcard option is from rfc 6350, the other is 2426,
1359 # radicale page says it implements the former not the latter,
1360 # which conflicts with the documentation of which to select, but whatever.
1361 # http://radicale.org/technical_choices/
1362 # https://davdroid.bitfire.at/faq/entry/cant-manage-groups-on-device/
1364 # Note, url above says only cayanogenmod 13+ and omnirom can manage groups.
1366 # Note, radicale had built-in git support to track changes, but they
1367 # removed it in 2.0.
1373 # ** $MAIL_HOST|bk|je)
1376 # based on a little google and package search, just the dovecot
1377 # packages we need instead of dovecot-common.
1379 # dovecot-lmtpd is for exim to deliver to dovecot instead of maildir
1380 # directly. The reason to do this is to use dovecot\'s sieve, which
1381 # can generally do more than exims filters (a few things less) and
1382 # sieve has the benefit of being supported in postfix and
1383 # proprietary/weird environments, so there is more examples on the
1385 pi dovecot-core dovecot-imapd dovecot-sieve dovecot-lmtpd dovecot-sqlite sqlite3
1387 for f
in /p
/c
{/machine_specific
/$HOSTNAME,}/filesystem
/etc
/dovecot
/users
; do
1388 if [[ -e $f ]]; then
1389 m rsync
-ahhi --chown=root
:dovecot
--chmod=0640 $f /etc
/dovecot
/
1393 for f
in /p
/c
/subdir_files
/sieve
/*sieve
/a
/c
/subdir_files
/sieve
/*sieve
; do
1394 m sudo
-u $u /a
/exe
/lnf
-T $f $uhome/sieve
/${f##*/}
1397 # https://wiki.dovecot.org/SSL/DovecotConfiguration
1398 i
/etc
/dovecot
/dhparam
<<'EOF'
1399 -----BEGIN DH PARAMETERS-----
1400 MIIBCAKCAQEAoleil6SBxGqQKk7j0y2vV3Oklv6XupZKn7PkPv485QuFeFagifeS
1401 A+Jz6Wquqk5zhGyCu63Hp4wzGs4TyQqoLjkaWL6Ra/Bw3g3ofPEzMGEsV1Qdqde4
1402 jorwiwtr2i9E6TXQp0noT/7VFeHulIkayTeW8JulINdMHs+oLylv16McGCIrxbkM
1403 8D1PuO0TP/CNDs2QbRvJ1RjY3CeGpxMhrSHVgBCUMwnA2cvz3bYjI7UMYMMDPNrE
1404 PLrwsYzXGGCdJsO2vsmmqqgLsZiapYJlUNjfiyWLt7E2H6WzkNB3VIhIPfLqFDPK
1405 xioE3sYKdjOt+p6mlg3l8+OLtODEFPHDqwIBAg==
1406 -----END DH PARAMETERS-----
1409 if [[ $HOSTNAME == "$MAIL_HOST" ]]; then
1411 ssl_cert = </etc/exim4/fullchain.pem
1412 ssl_key = </etc/exim4/privkey.pem
1416 ssl_cert = </etc/exim4/exim.crt
1417 ssl_key = </etc/exim4/exim.key
1421 # https://ssl-config.mozilla.org
1423 # this is the same as the certbot list, in my cert cronjob, I check if that has changed upstream.
1424 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
1425 ssl_protocols = TLSv1.2
1426 ssl_prefer_server_ciphers = no
1429 #per https://wiki2.dovecot.org/Pigeonhole/Sieve/Configuration
1430 # default is just \$mail_plugins
1431 mail_plugins = \$mail_plugins sieve
1434 if dpkg
--compare-versions $
(dpkg-query
-f='${Version}\n' --show dovecot-core
) ge
1:2.3; then
1436 ssl_dh = </etc/dovecot/dhparam
1439 } >/etc
/dovecot
/local.conf
1445 # If we changed 90-sieve.conf and removed the active part of the
1446 # sieve option, we wouldn\'t need this, but I\'d rather not modify a
1447 # default config if not needed. This won\'t work as a symlink in /a/c
1449 m sudo
-u $u /a
/exe
/lnf
-T sieve
/main.sieve
$uhome/.dovecot.sieve
1451 if [[ ! -e $uhome/sieve
/personal.sieve
]]; then
1452 m
touch $uhome/sieve
/personal
{,end
}{,test}.sieve
1455 rm -fv /etc
/dovecot
/conf.d
/20-lmtp.conf
# file from prev version
1456 cat >>/etc
/dovecot
/local.conf
<<EOF
1457 # simple password file based login
1458 !include conf.d/auth-passwdfile.conf.ext
1460 # ian: %u is used for alerts user vs iank
1461 mail_location = maildir:/m/%u:LAYOUT=fs:INBOX=/m/%u/INBOX
1466 # For a normal setup with exim, we need something like this, which
1467 # removes the domain part
1468 # auth_username_format = %Ln
1470 # or else # Exim says something like
1471 # "LMTP error after RCPT ... 550 ... User doesn't exist someuser@somedomain"
1472 # Dovecot verbose log says something like
1473 # "auth-worker(9048): passwd(someuser@somedomain): unknown user"
1474 # reference: http://wiki.dovecot.org/LMTP/Exim
1476 # However, I use this to direct all mail to the same inbox.
1477 # A normal way to do this, which I did at first is to have
1478 # a router in exim almost at the end, eg 950,
1480 # debug_print = "R: catchall for \$local_part@\$domain"
1482 # domains = +local_domains
1485 # http://blog.alteholz.eu/2015/04/exim4-and-catchall-email-address/
1486 # with superflous options removed.
1487 # However, this causes the envelope to be rewritten,
1488 # which makes filtering into mailboxes a little less robust or more complicated,
1489 # so I've done it this way instead. it also requires
1490 # modifying the local router in exim.
1491 auth_username_format = $u
1497 chown
-R mail.
mail /m
/md
1499 f
=/etc
/dovecot
/conf.d
/10-auth.conf
1500 if [[ -e $f ]]; then
1501 mv $f $f-iank-disabled
1504 cat >>/etc
/dovecot
/local.conf
<<EOF
1505 !include /etc/dovecot/local.conf.ext
1507 # for debugging info, uncomment these.
1508 # logs go to syslog and to /var/log/mail.log
1514 # This downcases the localpart. default is case sensitive.
1515 # case sensitive local part will miss out on valid email when some person or system
1516 # mistakenly capitalizes things.
1517 auth_username_format = %Lu
1520 # make 147 only listen on localhost, plan to use for nextcloud.
1521 # copied from mailinabox
1522 service imap-login {
1523 inet_listener imap {
1527 # https://www.exim.org/exim-html-current/doc/html/spec_html/ch-the_dovecot_authenticator.html
1529 unix_listener auth-client {
1537 sieve_before = /etc/dovecot/sieve-spam.sieve
1539 sieve = /m/sieve/%d/%n.sieve
1540 sieve_dir = /m/sieve/%d/%n
1544 # all taken from mailinabox.
1545 mail_location = maildir:/m/md/%d/%n
1547 mail_privileged_group = mail
1548 # By default Dovecot allows users to log in only with UID numbers 500 and above. mail is 8
1551 # todo: test these changes in the universal config
1552 # mailboxes taken from mailinabox but removed
1553 # settings duplicate to defaults
1572 special_use = \Archive
1576 auth_mechanisms = plain login
1579 i
/etc
/dovecot
/sieve-spam.sieve
<<'EOF'
1580 require ["regex", "fileinto", "imap4flags"];
1582 if allof (header :regex "X-Spam-Status" "^Yes") {
1588 i
/etc
/dovecot
/local.conf.ext
<<'EOF'
1591 args = /etc/dovecot/dovecot-sql.conf.ext
1595 args = /etc/dovecot/dovecot-sql.conf.ext
1600 i
/etc
/dovecot
/dovecot-sql.conf.ext
<<'EOF'
1603 connect = /m/rc/users.sqlite
1604 default_pass_scheme = SHA512-CRYPT
1605 password_query = SELECT email as user, password FROM users WHERE email='%u';
1606 user_query = SELECT email AS user, "mail" as uid, "mail" as gid, "/m/md/%d/%n" as home FROM users WHERE email='%u';
1607 iterate_query = SELECT email AS user FROM users;
1609 m
chmod 0600 /etc
/dovecot
/dovecot-sql.conf.ext
# per Dovecot instructions
1611 # db needs to be in a www-data writable directory
1612 db
=/m
/rc
/users.sqlite
1613 if [[ ! -s $db ]]; then
1615 m sqlite3
$db <<'EOF'
1616 CREATE TABLE users (
1617 id INTEGER PRIMARY KEY AUTOINCREMENT,
1618 email TEXT NOT NULL UNIQUE,
1619 password TEXT NOT NULL,
1621 privileges TEXT NOT NULL DEFAULT '');
1624 # example of adding a user:
1625 # hash: doveadm pw -s SHA512-CRYPT -p passhere
1626 # sqlite3 /m/rc/users.sqlite <<'EOF'
1627 #insert into users (email, password) values ('testignore@bk.b8.nz', 'hash');
1629 # update users set password = 'hash' where email = 'testignore@bk.b8.nz';
1631 # this should be at the end since it requires a valid dovecot config
1632 m sievec
/etc
/dovecot
/sieve-spam.sieve
1636 # roundcube uses this
1638 chown
mail.
mail /m
/sieve
1639 m pi dovecot-managesieved
1643 # * thunderbird autoconfig setup
1645 bkdomains
=(expertpathologyreview.com amnimal.ninja
)
1646 if [[ $HOSTNAME == bk
]]; then
1647 for domain
in ${bkdomains[@]}; do
1648 m
/a
/exe
/web-conf apache2 autoconfig.
$domain
1649 dir
=/var
/www
/autoconfig.
$domain/html
/mail
1651 # taken from mailinabox
1652 i
$dir/config-v1.1.xml
<<EOF
1653 <?xml version="1.0" encoding="UTF-8"?>
1654 <clientConfig version="1.1">
1655 <emailProvider id="$domain">
1656 <domain>$domain</domain>
1658 <displayName>$domain Mail</displayName>
1659 <displayShortName>$domain</displayShortName>
1661 <incomingServer type="imap">
1662 <hostname>mail2.iankelling.org</hostname>
1664 <socketType>SSL</socketType>
1665 <username>%EMAILADDRESS%</username>
1666 <authentication>password-cleartext</authentication>
1669 <outgoingServer type="smtp">
1670 <hostname>mail2.iankelling.org</hostname>
1672 <socketType>STARTTLS</socketType>
1673 <username>%EMAILADDRESS%</username>
1674 <authentication>password-cleartext</authentication>
1675 <addThisServer>true</addThisServer>
1676 <useGlobalPreferredServer>false</useGlobalPreferredServer>
1679 <documentation url="https://$domain/">
1680 <descr lang="en">$domain website.</descr>
1685 <loginPage url="https://$domain/roundcube" />
1686 <loginPageInfo url="https://$domain/roundcube" >
1687 <username>%EMAILADDRESS%</username>
1688 <usernameField id="rcmloginuser" name="_user" />
1689 <passwordField id="rcmloginpwd" name="_pass" />
1690 <loginButton id="rcmloginsubmit" />
1693 <clientConfigUpdate url="https://autoconfig.$domain/mail/config-v1.1.xml" />
1701 if [[ $HOSTNAME == bk
]]; then
1703 # zip according to /installer
1704 # which requires adding a line to /usr/local/lib/roundcubemail/config/config.inc.php
1705 # $config['enable_installer'] = true;
1706 pi roundcube roundcube-sqlite3 php-zip apache2 php-fpm
1708 ### begin composer install
1709 # https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
1711 # sum="$(wget -q -O - https://composer.github.io/installer.sig)"
1712 # m php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
1713 # if [[ $sum != $(php -r "echo hash_file('sha384', 'composer-setup.php');") ]]; then
1714 # echo 'ERROR: Invalid composer installer checksum' >&2
1715 # rm -fv composer-setup.php
1718 # m php composer-setup.php --quiet
1719 # rm -fv composer-setup.php
1720 # m mv composer.phar /usr/local/bin
1722 # the above method gets composer2, carddav plugin at least doesnt work with that
1723 # yet, it was just released 10-24-2020.
1725 m wget
-nv -N https
://getcomposer.org
/composer-1.phar
1726 chmod +x composer-1.phar
1727 ### end composer install
1729 rcdirs
=(/usr
/local
/lib
/rcexpertpath
/usr
/local
/lib
/rcninja
)
1730 ncdirs
=(/var
/www
/ncexpertpath
/var
/www
/ncninja
)
1731 # point debian cronjob to our local install, preventing daily cron error
1733 # debian's cronjob will fail, remove both paths it uses just to be sure
1734 rm -fv /usr
/share
/roundcube
/bin
/cleandb.sh
/etc
/cron.d
/roundcube-core
1736 #### begin dl roundcube
1737 # note, im r2e subbed to https://github.com/roundcube/roundcubemail/releases.atom
1738 v
=1.4.13; f
=roundcubemail-
$v-complete.
tar.gz
1740 if [[ -e $f ]]; then
1741 timestamp
=$
(stat
-c %Y
$f)
1745 m wget
-nv -N https
://github.com
/roundcube
/roundcubemail
/releases
/download
/$v/$f
1746 new_timestamp
=$
(stat
-c %Y
$f)
1747 for rcdir
in ${rcdirs[@]}; do
1748 if [[ $timestamp != "$new_timestamp" ||
! -e "$rcdir/config/secret" ]]; then
1749 m
tar -C /usr
/local
/lib
--no-same-owner -zxf $f
1751 m
mv /usr
/local
/lib
/roundcubemail-
$v $rcdir
1754 #### end dl roundcube
1756 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
1757 domain
=${bkdomains[i]}
1762 # copied from debians cronjob
1763 i
/etc
/cron.d
/$rcbase <<EOF
1764 # Roundcube database cleaning: finally removes all records that are
1765 # marked as deleted.
1766 0 5 * * * www-data $rcdir/bin/cleandb.sh >/dev/null
1769 m
/a
/exe
/web-conf
- apache2
$domain <<EOF
1770 Alias /roundcube $rcdir
1771 ### begin roundcube settings
1772 # taken from /etc/apache2/conf-available/roundcube.conf version 1.4.8+dfsg.1-1~bpo10+1
1774 Options +FollowSymLinks
1775 # This is needed to parse $rcdir/.htaccess.
1779 # Protecting basic directories:
1780 <Directory $rcdir/config>
1781 Options -FollowSymLinks
1784 ### end roundcube settings
1787 ### begin nextcloud settings
1788 Alias /nextcloud "$ncdir/"
1792 Options FollowSymLinks MultiViews
1794 <IfModule mod_dav.c>
1800 # based on install checker, links to
1801 # https://docs.nextcloud.com/server/19/admin_manual/issues/general_troubleshooting.html#service-discovery
1802 # their example was a bit wrong, I figured it out by adding
1803 # LogLevel warn rewrite:trace5
1804 # then watching the apache logs
1807 RewriteRule ^/\.well-known/host-meta /nextcloud/public.php?service=host-meta [QSA,L]
1808 RewriteRule ^/\.well-known/host-meta\.json /nextcloud/public.php?service=host-meta-json [QSA,L]
1809 RewriteRule ^/\.well-known/webfinger /nextcloud/public.php?service=webfinger [QSA,L]
1810 RewriteRule ^/\.well-known/carddav /nextcloud/remote.php/dav/ [R=301,L]
1811 RewriteRule ^/\.well-known/caldav /nextcloud/remote.php/dav/ [R=301,L]
1812 ### end nextcloud settings
1814 if [[ ! -e $rcdir/config
/secret
]]; then
1815 base64
</dev
/urandom |
head -c24 >$rcdir/config
/secret ||
[[ $?
== 141 ||
${PIPESTATUS[0]} == 32 ]]
1817 secret
=$
(cat $rcdir/config
/secret
)
1819 rclogdir
=/var
/log
/$rcbase
1820 rctmpdir
=/var
/tmp
/$rcbase
1821 rcdb
=/m
/rc
/$rcbase.sqlite
1822 # config from mailinabox
1823 i
$rcdir/config
/config.inc.php
<<EOF
1826 # debian creates this for us
1827 \$config['log_dir'] = '$rclogdir/';
1828 # debian also creates a temp dir, but it is under its install dir,
1829 # seems better to have our own.
1830 \$config['temp_dir'] = '$rctmpdir/';
1831 \$config['db_dsnw'] = 'sqlite:///$rcdb?mode=0640';
1832 \$config['default_host'] = 'ssl://localhost';
1833 \$config['default_port'] = 993;
1834 \$config['imap_conn_options'] = array(
1836 'verify_peer' => false,
1837 'verify_peer_name' => false,
1840 \$config['imap_timeout'] = 15;
1841 \$config['smtp_server'] = 'tls://127.0.0.1';
1842 \$config['smtp_conn_options'] = array(
1844 'verify_peer' => false,
1845 'verify_peer_name' => false,
1848 \$config['product_name'] = 'webmail';
1849 \$config['des_key'] = '$secret';
1850 \$config['plugins'] = array('archive', 'zipdownload', 'password', 'managesieve', 'jqueryui', 'carddav', 'html5_notifier');
1851 \$config['skin'] = 'elastic';
1852 \$config['login_autocomplete'] = 2;
1853 \$config['password_charset'] = 'UTF-8';
1854 \$config['junk_mbox'] = 'Spam';
1855 # disable builtin addressbook
1856 \$config['address_book_type'] = '';
1860 m mkdir
-p $rclogdir
1861 m
chmod 750 $rclogdir
1862 m chown www-data
:adm
$rclogdir
1863 # note: subscribed to updates:
1864 # r2e add rcmcarddav https://github.com/blind-coder/rcmcarddav/commits/master.atom ian@iankelling.org
1865 # r2e add roundcube https://github.com/roundcube/roundcubemail/releases.atom ian@iankelling.org
1866 m mkdir
-p $rctmpdir /m
/rc
1867 m chown
-R www-data.www-data
$rctmpdir /m
/rc
1868 m
chmod 750 $rctmpdir
1869 # Ensure the log file monitored by fail2ban exists, or else fail2ban can't start.
1870 # todo: setup fail2ban
1871 # todo: check for other mailinabox things
1872 m sudo
-u www-data
touch $rclogdir/errors.log
1874 #### begin carddav install
1875 # This is the official roundcube carddav repo.
1876 # Install doc suggests downloading with composer, but that
1877 # didnt work, it said some ldap package for roundcube was missing,
1878 # but I dont want to download some extra ldap thing.
1879 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/INSTALL.md
1880 verf
=$rcdir/plugins
/carddav
/myversion
1884 if [[ -e $verf ]]; then
1885 if [[ $
(cat $verf) != "$v" ]]; then
1893 m
rm -rf $rcdir/plugins
/carddav
1895 m wget
-nv -O $tmpd/t.tgz https
://github.com
/blind-coder
/rcmcarddav
/releases
/download
/v
$v/carddav-v
$v.tgz
1899 m chown
-R www-data
:www-data
$rcdir/plugins
/carddav
1900 m
cd $rcdir/plugins
/carddav
1902 m sudo
-u www-data composer-1.phar update
--no-dev
1904 m sudo
-u www-data composer-1.phar
install --no-dev
1906 m chown
-R root
:root
$rcdir/plugins
/carddav
1910 # So, strangely, this worked in initial testing, but then
1911 # on first run it wouldn't show the existing contacts until
1912 # I went into the carddav settings and did "force immediate sync",
1913 # which seemed to fix things. Note, some of these settings
1914 # get initalized per/addressbook in the db, then need changing
1915 # there or through the settings menu.
1917 # About categories, see https://www.davx5.com/tested-with/nextcloud
1918 # https://github.com/blind-coder/rcmcarddav/blob/master/doc/GROUPS.md
1919 i
$rcdir/plugins
/carddav
/config.inc.php
<<EOF;
1921 \$prefs['_GLOBAL']['hide_preferences'] = false;
1922 \$prefs['davserver'] = array(
1923 # name in the UI is kind of dumb. This is just something short that seems to fit ok.
1925 'username' => '%u', // login username
1926 'password' => '%p', // login password
1927 'url' => 'https://$domain/nextcloud/remote.php/dav/addressbooks/users/%u/contacts',
1929 'readonly' => false,
1930 'refresh_time' => '00:10:00',
1931 'fixed' => array('username','password'),
1932 'use_categories' => false,
1937 #### end carddav install
1940 if [[ ! -d html5_notifier
]]; then
1941 m git clone https
://github.com
/stremlau
/html5_notifier
1943 cd $rcdir/plugins
/html5_notifier
1946 # todo: try out roundcube plugins: thunderbird labels
1948 # Password changing plugin settings
1949 cat $rcdir/plugins
/password
/config.inc.php.dist
- >$rcdir/plugins
/password
/config.inc.php
<<'EOF'
1950 # following are from mailinabox
1951 $config['password_minimum_length'] = 8;
1952 $config['password_db_dsn'] = 'sqlite:////m/rc/users.sqlite';
1953 $config['password_query'] = 'UPDATE users SET password=%D WHERE email=%u';
1954 $config['password_dovecotpw'] = '/usr/bin/doveadm pw';
1955 $config['password_dovecotpw_method'] = 'SHA512-CRYPT';
1956 $config['password_dovecotpw_with_method'] = true;
1958 # so PHP can use doveadm, for the password changing plugin
1959 m usermod
-a -G dovecot www-data
1960 m usermod
-a -G mail $u
1962 # so php can update passwords
1963 m chown www-data
:dovecot
/m
/rc
/users.sqlite
1964 m
chmod 664 /m
/rc
/users.sqlite
1966 # Run Roundcube database migration script (database is created if it does not exist)
1967 m
$rcdir/bin
/updatedb.sh
--dir $rcdir/SQL
--package roundcube
1968 m chown www-data
:www-data
$rcdb
1970 done # end loop over domains and rcdirs
1972 ### begin php setup for rc ###
1973 # Enable PHP modules.
1974 m phpenmod
-v php mcrypt imap
1975 # dpkg says this is required
1976 m a2enmod proxy_fcgi setenvif
1977 fpm
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* (php[^ ]*-fpm)( .*|$)/\1/p') # eg: php7.4-fpm
1978 phpver
=$
(dpkg-query
-s php-fpm |
sed -nr 's/^Depends:.* php([^ ]*)-fpm( .*|$)/\1/p')
1980 # 3 useless guides on php fpm fcgi debian 10 later, i figure out from reading
1981 # /etc/apache2/conf-enabled/php7.3-fpm.conf
1982 m a2dismod php
$phpver
1983 # according to /install, we should set date.timezone,
1984 # but that is dumb, the system already has the right zone in
1985 # $rclogdir/errors.log
1986 # todo: consider other settings in
1987 # /a/opt/mailinabox/setup/nextcloud.sh
1988 i
/etc
/php
/$phpver/cli
/conf.d
/30-local.ini
<<'EOF'
1992 i
/etc
/php
/$phpver/fpm
/conf.d
/30-local.ini
<<'EOF'
1993 date.timezone = "America/New_York"
1995 upload_max_filesize = 2000M
1996 post_max_size = 2000M
1997 # install checker, nextcloud/settings/admin/overview
2000 m systemctl restart
$fpm
2001 # dunno if reload/restart is needed
2002 m systemctl reload apache2
2003 # note bk backups are defined in crontab outside this file
2004 ### end php setup for rc ###
2006 fi # end roundcube setup
2010 if [[ $HOSTNAME == bk
]]; then
2011 # from install checker, nextcloud/settings/admin/overview and
2012 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2013 # curl from the web installer requirement, but i switched to cli
2014 # it recommends php-file info, but that is part of php7.3-common, already got installed
2016 m pi php-curl php-bz2 php-gmp php-bcmath php-imagick php-apcu
2018 # https://docs.nextcloud.com/server/19/admin_manual/installation/source_installation.html
2019 cat >/etc
/php
/$phpver/fpm
/pool.d
/localwww.conf
<<'EOF'
2024 for ((i
=0; i
< ${#bkdomains[@]}; i
++)); do
2025 domain
=${bkdomains[i]}
2029 if [[ ! -e $ncdir/index.php
]]; then
2030 # if we wanted to only install a specific version, use something like
2031 # file=latest-22.zip
2033 m wget
-nv -N https
://download.nextcloud.com
/server
/releases
/$file
2037 m chown
-R www-data.www-data nextcloud
2038 m
mv nextcloud
$ncdir
2040 m sudo
-u www-data php occ maintenance
:install --database sqlite
--admin-user iank
--admin-pass $nextcloud_admin_pass
2042 # note, strange this happend where updater did not increment the version var,
2043 # mine was stuck on 20. I manually updated it.
2045 if [[ ! -e config.php-orig
]]; then
2046 m
cp -a config.php config.php-orig
2048 cat config.php-orig
- >tmp.php
<<EOF
2049 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/email_configuration.html
2050 \$CONFIG["mail_smtpmode"] = "sendmail";
2051 \$CONFIG["mail_smtphost"] = "127.0.0.1";
2052 \$CONFIG["mail_smtpport"] = 25;
2053 \$CONFIG["mail_smtptimeout"] = 10;
2054 \$CONFIG["mail_smtpsecure"] = "";
2055 \$CONFIG["mail_smtpauth"] = false;
2056 \$CONFIG["mail_smtpauthtype"] = "LOGIN";
2057 \$CONFIG["mail_smtpname"] = "";
2058 \$CONFIG["mail_smtppassword"] = "";
2059 \$CONFIG["mail_domain"] = "$domain";
2061 # https://github.com/nextcloud/user_external#readme
2062 # plus mailinabox example
2063 #\$CONFIG['user_backends'] = array(array('class' => 'OC_User_IMAP','arguments' => array('127.0.0.1', 143, null),),);
2066 # based on installer check
2067 # https://docs.nextcloud.com/server/19/admin_manual/configuration_server/caching_configuration.html
2068 \$CONFIG['memcache.local'] = '\OC\Memcache\APCu';
2070 \$CONFIG['overwrite.cli.url'] = 'https://$domain/nextcloud';
2071 \$CONFIG['htaccess.RewriteBase'] = '/nextcloud';
2072 \$CONFIG['trusted_domains'] = array (
2076 fwrite(STDOUT, "<?php\n\\\$CONFIG = ");
2077 var_export(\$CONFIG);
2078 fwrite(STDOUT, ";\n");
2080 m php tmp.php
>config.php
2082 m sudo
-u www-data php
$ncdir/occ maintenance
:update
:htaccess
2083 list
=$
(sudo
-u www-data php
$ncdir/occ
--output=json_pretty app
:list
)
2084 # user_external not compaible with nc 23
2085 for app
in contacts calendar
; do
2086 if [[ $
(printf "%s\n" "$list"| jq
".enabled.$app") == null
]]; then
2087 m sudo
-u www-data php
$ncdir/occ app
:install $app
2090 i
/etc
/systemd
/system
/$ncbase.service
<<EOF
2092 Description=ncup $ncbase
2093 After=multi-user.target
2097 ExecStart=/usr/local/bin/ncup $ncbase
2099 IOSchedulingClass=idle
2100 CPUSchedulingPolicy=idle
2102 i
/etc
/systemd
/system
/$ncbase.timer
<<EOF
2104 Description=ncup $ncbase timer
2110 WantedBy=timers.target
2112 systemctl
enable --now $ncbase.timer
2113 i
/usr
/local
/bin
/ncup
<<'EOFOUTER'
2115 if ! test "$BASH_VERSION"; then echo "error: shell is not bash" >&2; exit 1; fi
2116 shopt -s inherit_errexit 2>/dev/null ||: # ignore fail in bash < 4.4
2118 trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" exit status: $?, PIPESTATUS: ${PIPESTATUS[*]}" >&2' ERR
2121 if ! php /var/www/$ncbase/updater/updater.phar -n; then
2122 echo failed nextcloud update for $ncbase >&2
2124 To: alerts@iankelling.org
2125 From: root@$(hostname -f)
2126 Subject: failed nextcloud update for $ncbase
2128 For logs, run: jr -u $ncbase
2133 mkdir
-p /var
/www
/cron-errors
2134 chown www-data.www-data
/var
/www
/cron-errors
2135 i
/etc
/cron.d
/$ncbase <<EOF
2136 PATH=/sbin:/usr/sbin:/usr/bin:/bin:/usr/local/bin
2138 # https://docs.nextcloud.com/server/20/admin_manual/configuration_server/background_jobs_configuration.html
2139 */5 * * * * www-data php -f $ncdir/cron.php --define apc.enable_cli=1 |& log-once nccron
2146 # * exim host conditional config
2150 all_dirs
=(/p
/c
/filesystem
)
2151 for x
in /p
/c
/machine_specific
/*.hosts
/a
/bin
/ds
/machine_specific
/*.hosts
; do
2152 if grep -qxF $HOSTNAME $x; then all_dirs
+=( ${x%.hosts} ); fi
2155 for d
in ${all_dirs[@]}; do
2156 f
=$d/etc
/exim
4/passwd
2157 if [[ -e $f ]]; then
2160 tmp
=($d/etc
/exim
4/*.pem
)
2161 if (( ${#tmp[@]} )); then
2166 if (( ${#files[@]} )); then
2167 sudo rsync
-ahhi --chown=root
:Debian-exim
--chmod=0640 ${files[@]} /etc
/exim
4/
2175 # avoid accepting mail for invalid users
2176 # https://wiki.dovecot.org/LMTP/Exim
2177 cat >>/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2179 message = invalid recipient
2180 domains = +local_domains
2181 !verify = recipient/callout=no_cache
2183 i
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2187 server_socket = /var/run/dovecot/auth-client
2188 server_set_id = $auth1
2193 i
/etc
/exim
4/conf.d
/auth
/29_exim4-config_auth
<<'EOF'
2194 # from 30_exim4-config_examples
2198 server_condition = "${if crypteq{$auth3}{${extract{1}{:}{${lookup{$auth2}lsearch{CONFDIR/passwd}{$value}{*:*}}}}}{1}{0}}"
2199 server_set_id = $auth2
2201 .ifndef AUTH_SERVER_ALLOW_NOTLS_PASSWORDS
2202 server_advertise_condition = ${if eq{$tls_in_cipher}{}{}{*}}
2207 # ** main daemon use non-default config file
2210 # to see the default comments in /etc/default/exim4:
2211 # s update-exim4defaults --force --init
2212 # which will overwrite any existing file
2213 i
/etc
/default
/exim4
<<'EOF'
2214 QUEUERUNNER='combined'
2216 COMMONOPTIONS='-C /etc/exim4/my.conf'
2217 UPEX4OPTS='-o /etc/exim4/my.conf'
2218 #E4BCD_PANICLOG_NOISE='malware acl condition: clamd /var/run/clamav/clamd\.ctl : unable to connect to UNIX socket'
2220 i
/etc
/exim
4/trusted_configs
<<'EOF'
2226 i
/etc
/default
/exim4
<<'EOF'
2227 QUEUERUNNER='combined'
2234 # ** $MAIL_HOST|bk|je)
2237 echo|i
/etc
/exim
4/conf.d
/router
/870_backup_local
2239 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2240 # note: some things we don't set that are here by default because they are unused.
2241 dc_local_interfaces=''
2242 dc_eximconfig_configtype='internet'
2243 dc_localdelivery='dovecot_lmtp'
2245 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2246 # recommended if dns is expected to work
2247 CHECK_RCPT_VERIFY_SENDER = true
2248 # default config comment says: If you enable this, you might reject legitimate mail,
2249 # but eggs has had this a long time, so that seems unlikely.
2250 CHECK_RCPT_SPF = true
2251 CHECK_RCPT_REVERSE_DNS = true
2252 CHECK_MAIL_HELO_ISSUED = true
2254 # enable 587 in addition to the default 25, so that
2255 # i can send mail where port 25 is firewalled by isp
2256 daemon_smtp_ports = 25 : 587
2257 # default of 25, can get stuck when catching up on mail
2258 smtp_accept_max = 400
2259 smtp_accept_reserve = 100
2260 smtp_reserve_hosts = +iank_trusted
2262 # options exim has to avoid having to alter the default config files
2263 CHECK_RCPT_LOCAL_ACL_FILE = /etc/exim4/conf.d/rcpt_local_acl
2264 CHECK_DATA_LOCAL_ACL_FILE = /etc/exim4/conf.d/data_local_acl
2265 LOCAL_DENY_EXCEPTIONS_LOCAL_ACL_FILE = /etc/exim4/conf.d/local_deny_exceptions_acl
2267 #dmarc_tld_file = /etc/public_suffix_list.dat
2274 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2275 # je.b8.nz will run out of memory with freshclam
2276 av_scanner = clamd:/var/run/clamav/clamd.ctl
2279 cat >> /etc
/exim
4/conf.d
/data_local_acl
<<'EOF'
2281 malware = */defer_ok
2282 !condition = ${if match {$malware_name}{\N^Heuristic\N}}
2283 message = This message was detected as possible malware ($malware_name).
2286 cat >/etc
/exim
4/conf.d
/main
/000_local-nn
<<EOF
2287 # MAIN_HARDCODE_PRIMARY_HOSTNAME might mess up the
2288 # smarthost config type, not sure.
2289 # failing message on mail-tester.com:
2290 # We check if there is a server (A Record) behind your hostname kd.
2291 # You may want to publish a DNS record (A type) for the hostname kd or use a different hostname in your mail software
2292 # https://serverfault.com/questions/46545/how-do-i-change-exim4s-primary-hostname-on-a-debian-box
2293 # and this one seemed appropriate from grepping config.
2294 # I originally set this to li.iankelling.org, but then ended up with errors when li tried to send
2295 # mail to kd, so this should basically be a name that no host has as their
2296 # canonical hostname since the actual host sits behind a nat and changes.
2297 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail.iankelling.org
2298 # I used this to avoid sender verification, didnt work but it still
2299 # makes sense based on the spec.
2300 hosts_treat_as_local = defaultnn.b8.nz
2302 # Outside nn, we get the default cert location from a debian macro,
2303 # and the cert file is put in place by a certbot hook.
2304 MAIN_TLS_CERTIFICATE = /etc/exim4/fullchain.pem
2305 MAIN_TLS_PRIVATEKEY = /etc/exim4/privkey.pem
2308 i
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
<<'EOF'
2310 debug_print = "R: smarthost for $local_part@$domain"
2311 driver = manualroute
2312 domains = ! +local_domains
2313 # send most mail through eggs, helps fsfs sender reputation.
2314 # uncomment and optionally move to 188 file to send through my own servers again
2316 transport = smarthost_dkim
2317 route_list = * fencepost.gnu.org::587 byname
2318 host_find_failed = ignore
2319 same_domain_copy_routing = yes
2323 /a
/exe
/cedit defaultnn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2324 10.173.8.1 defaultnn.b8.nz
2330 i
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
<<'EOF'
2331 # copied from /etc/exim4/conf.d/router/200_exim4-config_primary, but
2332 # use vpn transport. lower priority so it overrides the default route.
2333 # Use this in case our vpn fails, we dont send anything without it.
2334 .ifdef DCconfig_internet
2336 debug_print = "R: dnslookup for $local_part@$domain"
2338 domains = ! +local_domains
2339 transport = remote_smtp_vpn
2340 same_domain_copy_routing = yes
2341 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
2347 # note on backups: I used to do an automatic sshfs and restricted
2348 # permissions to a specific directory on the remote server, /bu/mnt,
2349 # which required using a dedicated user, but realized smtp will be
2350 # more reliable and less fuss. If I ever need that again, see the
2351 # history of this file, and bum in brc2.
2353 i
/etc
/exim
4/conf.d
/router
/890_backup_copy
<<EOF
2354 ### router/900_exim4-config_local_user
2355 #################################
2357 # todo, it would be nice to save sent email too,
2358 # but its not so important, they still exist in my head
2362 domains = +local_domains
2363 # b is just an arbirary short string
2364 data = b@eximbackup.b8.nz
2365 # note, to test this, i could temporarily allow testignore.
2366 # alerts avoids potential mail loop. root is already
2367 # redirected earlier, so that is just being overly cautious.
2368 local_parts = ! root : ! testignore : ! alerts
2372 driver = manualroute
2373 domains = eximbackup.b8.nz
2374 transport = backup_remote
2375 ignore_target_hosts = ${HOSTNAME}wg.b8.nz
2376 # note changes here also require change in passwd.client
2377 route_list = * eximbackup.b8.nz
2378 same_domain_copy_routing = yes
2379 errors_to = alerts@iankelling.org
2384 i
/etc
/exim
4/conf.d
/transport
/30_backup_remote
<<'EOF'
2388 .ifndef IGNORE_SMTP_LINE_LENGTH_LIMIT
2389 message_size_limit = ${if > {$max_received_linelength}{998} {1}{0}}
2391 hosts_require_auth = *
2394 # manual return path because we want it to be the envelope sender
2395 # we got not the one we are using in this smtp transport
2396 headers_add = "Return-path: $sender_address"
2397 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
2398 hosts_avoid_tls = REMOTE_SMTP_SMARTHOST_HOSTS_AVOID_TLS
2400 .ifdef REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
2401 hosts_require_tls = REMOTE_SMTP_SMARTHOST_HOSTS_REQUIRE_TLS
2403 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
2404 tls_verify_certificates = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_CERTIFICATES
2406 .ifdef REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOSTS
2407 tls_verify_hosts = REMOTE_SMTP_SMARTHOST_TLS_VERIFY_HOST
2409 .ifdef REMOTE_SMTP_HEADERS_REWRITE
2410 headers_rewrite = REMOTE_SMTP_HEADERS_REWRITE
2412 .ifdef REMOTE_SMTP_HELO_DATA
2413 helo_data=REMOTE_SMTP_HELO_DATA
2415 .ifdef TLS_DH_MIN_BITS
2416 tls_dh_min_bits = TLS_DH_MIN_BITS
2418 .ifdef REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
2419 tls_certificate = REMOTE_SMTP_SMARTHOST_TLS_CERTIFICATE
2421 .ifdef REMOTE_SMTP_SMARTHOST_PRIVATEKEY
2422 tls_privatekey = REMOTE_SMTP_SMARTHOST_PRIVATEKEY
2424 .ifdef REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
2425 headers_remove = REMOTE_SMTP_TRANSPORTS_HEADERS_REMOVE
2430 # this avoids some error. i cant remember what. todo:
2431 # test it out and document why/if its needed.
2432 # i /etc/exim4/host_local_deny_exceptions <<'EOF'
2437 # cron email from smarthost hosts will automatically be to
2438 # USER@FQDN. I redirect that to alerts@, on the smarthosts, but in
2439 # case that doesn't work, we still want to accept that mail, but not
2440 # from any host except the smarthosts. local_hostnames and this rule
2441 # is for that purpose.
2442 i
/etc
/exim
4/conf.d
/rcpt_local_acl
<<'EOF'
2445 domains = +local_hostnames
2448 echo|i
/etc
/exim
4/conf.d
/router
/880_universal_forward
2450 # for iank@fsf.org, i have mail.fsf.org forward it to fsf@iankelling.org.
2451 # and also have mail.iankelling.org whitelisted as a relay domain.
2452 # I could avoid that if I changed this to submit to 587 with a
2453 # password like a standard mua.
2454 i
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
<<'EOF'
2455 # ian: copied from /etc/exim4/conf.d/router/200_exim4-config_primary, and added senders = and
2456 # replaced DCsmarthost with hostname
2458 debug_print = "R: smarthost for $local_part@$domain"
2459 driver = manualroute
2460 domains = ! +local_domains
2462 transport = remote_smtp_smarthost
2463 route_list = * mail.fsf.org::587 byname
2464 host_find_failed = ignore
2465 same_domain_copy_routing = yes
2469 debug_print = "R: smarthost for $local_part@$domain"
2470 driver = manualroute
2471 domains = ! +local_domains
2472 senders = *@posteo.net
2473 transport = remote_smtp_smarthost
2474 route_list = * posteo.de::587 byname
2475 host_find_failed = ignore
2476 same_domain_copy_routing = yes
2481 # Greping /etc/exim4, unqualified mails this would end up as
2482 # a return path, so it should go somewhere we will see.
2483 # The debconf output about mailname is as follows:
2484 # The 'mail name' is the domain name used to 'qualify' mail addresses without a domain
2486 # This name will also be used by other programs. It should be the single, fully
2487 # qualified domain name (FQDN).
2488 # Thus, if a mail address on the local host is foo@example.org, the correct value for
2489 # this option would be example.org.
2490 # This name won\'t appear on From: lines of outgoing messages if rewriting is enabled.
2491 echo iankelling.org
> /etc
/mailname
2494 # mail.iankelling.org so local imap clients can connect with tls and
2495 # when they happen to not be local.
2496 # todo: this should be 10.8.0.4
2498 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2499 # note: i put nn.b8.nz into bind for good measure
2500 10.173.8.2 nn.b8.nz mx.iankelling.org
2503 # note: systemd-resolved will consult /etc/hosts, dnsmasq wont. this assumes
2504 # weve configured this file in dnsmasq if we are using it.
2505 /a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf
<<'EOF' || [[ $? == 1 ]]
2506 server=/mx.iankelling.org/127.0.1.1
2508 # I used to use debconf-set-selections + dpkg-reconfigure,
2509 # which then updates this file
2510 # but the process is slower than updating it directly and then I want to set other things in
2511 # update-exim4.conf.conf, so there's no point.
2512 # The file is documented in man update-exim4.conf,
2513 # except the man page is not perfect, read the bash script to be sure about things.
2515 # The debconf questions output is additional documentation that is not
2516 # easily accessible, but super long, along with the initial default comment in this
2517 # file, so I've saved that into ./mail-notes.conf.
2519 # # TODO: remove mx.iankelling.org once systems get updated mail-setup from jan 2022
2520 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2521 # man page: is used to build the local_domains list, together with "localhost"
2522 # this is duplicated in a later router.
2523 dc_other_hostnames='iankelling.org;zroe.org;r2e.iankelling.org;mx.iankelling.org;!je.b8.nz;!bk.b8.nz;*.b8.nz;b8.nz'
2527 # dmarc. not used currently
2528 f
=/etc
/cron.daily
/refresh-dmarc-tld-file
2532 wget -q -N https://publicsuffix.org/list/public_suffix_list.dat
2538 ## we use this host to monitor MAIL_HOST and host a mail server for someone
2541 echo|i
/etc
/exim
4/conf.d
/rcpt_local_acl
2542 echo|i
/etc
/exim
4/conf.d
/router
/880_universal_forward
2544 echo amnimal.ninja
> /etc
/mailname
2546 /a
/exe
/cedit nn
/etc
/hosts
<<'EOF' || [[ $? == 1 ]]
2550 sed -r -f - /etc
/init.d
/exim4
<<'EOF' | i /etc/init.d/exim4in
2551 s,/etc/default/exim4,/etc/default/exim4in,g
2552 s,/run/exim4/exim.pid,/run/exim4/eximin.pid,g
2553 s,(^[ #]*Provides:).*,\1 exim4in,
2554 s,(^[ #]*NAME=).*,\1"exim4in",
2556 chmod +x
/etc
/init.d
/exim4in
2557 i
/etc
/systemd
/system
/exim4in.service.d
/alwaysrestart.conf
<<'EOF'
2559 # needed to continually restart
2560 StartLimitIntervalSec=0
2564 # time to sleep before restarting a service
2568 i
/etc
/default
/exim4in
<<'EOF'
2569 # defaults but no queue runner and alternate config dir
2571 COMMONOPTIONS='-oP /run/exim4/eximin.pid'
2572 UPEX4OPTS='-d /etc/myexim4'
2575 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2576 # man page: is used to build the local_domains list, together with "localhost"
2577 dc_other_hostnames='amnimal.ninja;expertpathologyreview.com'
2583 echo je.b8.nz
> /etc
/mailname
2584 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2585 dc_other_hostnames='je.b8.nz'
2587 echo|i
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
2588 echo|i
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
2589 echo|i
/etc
/exim
4/conf.d
/rcpt_local_acl
2590 echo|i
/etc
/exim
4/conf.d
/router
/880_universal_forward
2592 # ** not MAIL_HOST|bk|je
2594 # this one should be removed for all non mail hosts, but
2595 # bk and je never become mail_host
2596 echo|i
/etc
/exim
4/conf.d
/router
/195_dnslookup_vpn
2598 echo|i
/etc
/exim
4/conf.d
/router
/188_exim4-config_smarthost
2599 echo|i
/etc
/exim
4/conf.d
/router
/190_exim4-config_fsfsmarthost
2600 echo|i
/etc
/exim
4/conf.d
/rcpt_local_acl
2601 echo|i
/etc
/exim
4/conf.d
/router
/890_backup_copy
2602 echo|i
/etc
/exim
4/conf.d
/main
/000_local-nn
2606 cat >>/etc
/exim
4/conf.d
/main
/000_local
<<EOF
2607 MAIN_TLS_CERTIFICATE = /etc/exim4/certs/$wghost/fullchain.pem
2608 MAIN_TLS_PRIVATEKEY = /etc/exim4/certs/$wghost/privkey.pem
2609 # so we can maintiain the originals of the backups.
2610 # we wouldnt want this if we were dealing with any other
2611 # local deliveries, but we sent all others to the smarthost
2612 # which then strips the headers.
2613 envelope_to_remove = false
2614 return_path_remove = false
2618 # catches things like cronjob email
2619 i
/etc
/exim
4/conf.d
/router
/880_universal_forward
<<'EOF'
2622 domains = +local_domains
2623 data = alerts@iankelling.org
2627 for unit
in ${nn_progs[@]}; do
2628 f
=/etc
/systemd
/system
/$unit.service.d
/nn.conf
2632 # dont i dont care if defaultnn section gets left, it wont
2634 echo |
/a
/exe
/cedit nn
/etc
/hosts ||
[[ $?
== 1 ]]
2635 echo |
/a
/exe
/cedit
mail /etc
/dnsmasq-servers.conf ||
[[ $?
== 1 ]]
2640 install -d -g $u -o $u -m 771 /bu
/md
2641 i
/etc
/exim
4/conf.d
/transport
/30_backup_maildir
<<EOF
2642 # modified debian maildir transport
2647 # note, no return path or envelope added
2649 directory_mode = 0700
2651 mode_fail_narrower = false
2655 i
/etc
/exim
4/conf.d
/router
/870_backup_local
<<EOF
2656 ### router/900_exim4-config_local_user
2657 #################################
2660 debug_print = "R: local_user for \$local_part@\$domain"
2662 domains = eximbackup.b8.nz
2663 transport = backup_maildir
2666 # Bind to wghole to receive mailbackup.
2667 wgholeip
=$
(sed -rn 's/^ *Address *= *([^/]+).*/\1/p' /etc
/wireguard
/wghole.conf
)
2668 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2669 dc_other_hostnames='eximbackup.b8.nz'
2670 dc_local_interfaces='127.0.0.1;::1;$wgholeip'
2673 # wghole & thus exim will fail to start without internet connectivity.
2674 i
/etc
/systemd
/system
/exim4.service.d
/backup.conf
<<'EOF'
2676 StartLimitIntervalSec=0
2684 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2685 # Note: If theres like a temporary problem where mail gets sent to
2686 # one of these hosts, if exim isnt listening, it will be a temporary error
2687 # instead of a permanent 5xx.
2688 dc_local_interfaces='127.0.0.1;::1'
2690 rm -fv /etc
/systemd
/system
/exim4.service.d
/backup.conf
2692 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2693 dc_eximconfig_configtype='smarthost'
2694 dc_smarthost='$smarthost'
2697 hostname
-f |i
/etc
/mailname
2698 cat >>/etc
/exim
4/update-exim4.conf.conf
<<EOF
2699 # The manpage incorrectly states this will do header rewriting, but
2700 # that only happens if we have dc_hide_mailname is set.
2701 dc_readhost='iankelling.org'
2702 # Only used in case of bounces.
2703 dc_localdelivery='maildir_home'
2711 # ** $MAILHOST|bk, things that belong at the end
2714 # config for the non-nn exim
2715 m rsync
-ra --delete /etc
/exim
4/ /etc
/myexim4
2716 # If we ever wanted to have a separate spool,
2717 # we could do it like this.
2718 # cat >>/etc/exim4/conf.d/main/000_local-nn <<'EOF'
2719 # spool_directory = /var/spool/myexim4
2721 cat >>/etc
/myexim
4/update-exim4.conf.conf
<<'EOF'
2722 dc_eximconfig_configtype='smarthost'
2723 dc_smarthost='nn.b8.nz'
2728 # config for the non-nn exim
2729 cat >/etc
/myexim
4/conf.d
/main
/000_local-nn
<<'EOF'
2730 MAIN_HARDCODE_PRIMARY_HOSTNAME = mail2.iankelling.org
2734 # for bk, we have a exim4in.service that will do this for us.
2735 m update-exim4.conf
-d /etc
/myexim4
2741 # ** bind mount setup
2742 # put spool dir in directory that spans multiple distros.
2743 # based on http://www.postfix.org/qmgr.8.html and my notes in gnus
2746 sdir
=/var
/spool
/exim4
2747 # we only do this if our system has $dir
2749 # this used to do a symlink, but, in the boot logs, /nocow would get mounted succesfully,
2750 # about 2 seconds later, exim starts, and immediately puts into paniclog:
2751 # honVi-0000u3-82 Failed to create directory "/var/spool/exim4/input": No such file or directory
2752 # so, im trying a bind mount to get rid of that.
2753 if [[ -e /nocow
]]; then
2754 if ! grep -Fx "/nocow/exim4 /var/spool/exim4 none bind 0 0" /etc
/fstab
; then
2755 echo "/nocow/exim4 /var/spool/exim4 none bind 0 0" >>/etc
/fstab
2757 i
/etc
/systemd
/system
/exim4.service.d
/override.conf
<<'EOF'
2759 # without local-fs on exim, we get these kind of errors in paniclog on shutdown:
2760 # Failed to create spool file /var/spool/exim4//input//1jCLxz-0008V4-V9-D: Permission denied
2761 After=local-fs.target
2763 if ! mountpoint
-q $sdir; then
2764 stopifactive exim4 exim4in
2765 if [[ -L $sdir ]]; then
2768 if [[ ! -e $dir && -d $sdir ]]; then
2771 if [[ ! -d $sdir ]]; then
2773 m
chmod 000 $sdir # only want it to be used when its mounted
2781 # ** exim/spool uid setup
2782 # i have the spool directory be common to distro multi-boot, so
2783 # we need the uid to be the same. 608 cuz it's kind of in the middle
2784 # of the free system uids.
2785 IFS
=:; read -r _ _ uid _
< <(getent passwd Debian-exim ||
:) ||
:; unset IFS
2786 IFS
=:; read -r _ _ gid _
< <(getent group Debian-exim ||
:) ||
:; unset IFS
2787 if [[ ! $uid ]]; then
2788 # from /var/lib/dpkg/info/exim4-base.postinst, plus uid and gid options
2789 m adduser
--uid 608 --system --group --quiet --home /var
/spool
/exim4 \
2790 --no-create-home --disabled-login --force-badname Debian-exim
2791 elif [[ $uid != 608 ]]; then
2792 stopifactive exim4 exim4in
2793 m usermod
-u 608 Debian-exim
2794 m groupmod
-g 608 Debian-exim
2795 m usermod
-g 608 Debian-exim
2796 m
find / /nocow
-path .
/var
/tmp
-prune -o -xdev -uid $uid -execdir chown
-h 608 {} +
2797 m
find / /nocow
-path .
/var
/tmp
-prune -o -xdev -gid $gid -execdir chgrp
-h 608 {} +
2800 # * start / stop services
2802 reifactive dnsmasq nscd
2805 m systemctl daemon-reload
2808 m systemctl
--now enable epanicclean.timer
2812 /a
/exe
/web-conf apache2 je.b8.nz
2815 /a
/exe
/web-conf apache2 mail2.iankelling.org
2819 m
/a
/bin
/ds
/mail-cert-cron
-1
2824 # todo, this should be done in distro-begin
2825 soff systemd-resolved
2826 ln -sf 127.0.0.1-resolv/stub-resolv.conf
/etc
/resolv.conf
2829 m systemctl
--now enable mailnn mailnnroute
2832 # we use dns to start wg
2836 m systemctl
--now enable unbound
2840 # If these have changes, id rather manually restart it, id rather
2841 # not restart and cause temporary errors
2845 m systemctl
--now enable $vpnser
2847 if ! systemctl is-active clamav-daemon
>/dev
/null
; then
2848 m systemctl
--now enable clamav-daemon
2849 out
=$
(rsync
-aiSAX --chown=root
:root
--chmod=g-s
/a
/bin
/ds
/filesystem
/etc
/systemd
/system
/epanicclean.
{timer
,service
} /etc
/systemd
/system
)
2854 # note, this will cause paniclog entries because it takes like 45
2855 # seconds for clamav to start, i use ./epanic-clean to remove
2860 # start spamassassin/dovecot before exim.
2861 sre dovecot spamassassin
2862 # need to wait a bit before restarting exim, else I
2863 # get a paniclog entry like: spam acl condition: all spamd servers failed
2865 m systemctl
--now enable mailclean.timer
2868 # < 2.1 (eg: in t9), uses a different data format which required manual
2869 # migration. dont start if we are running an old version.
2870 if dpkg
--compare-versions $
(dpkg
-s radicale |
awk '$1 == "Version:" { print $2 }') ge
2.1; then
2871 m systemctl
--now enable radicale
2876 # last use of $reload happens in previous block
2877 rm -f /var
/local
/mail-setup-reload
2881 $MAIL_HOST|bk|je
) : ;;
2883 soff radicale mailclean.timer dovecot spamassassin
$vpnser mailnn clamav-daemon
2891 m systemctl
--now enable mailbindwatchdog
2894 soff mailbindwatchdog
2903 # * mail monitoring / testing
2905 # note, to test clamav, send an email with body that only contains
2906 # https://en.wikipedia.org/wiki/EICAR_test_file
2907 # which set malware_name to Eicar-Signature
2910 # note: cronjob "ian" also does some important monitoring
2911 # todo: this will sometimes cause an alert because mailtest-check will run
2912 # before we have setup network namespace and spamassassin
2913 cat >/etc
/cron.d
/mailtest
<<EOF
2915 PATH=/usr/bin:/bin:/usr/local/bin
2916 MAILTO=alerts@iankelling.org
2917 */5 * * * * $u send-test-forward |& log-once send-test-forward
2918 */10 * * * * root chmod -R g+rw /m/md/bounces |& log-once -1 bounces-chmod
2919 # im seeing some intermittent failures on the slow check, do it all the time
2920 # for now. It looks like a dns failure.
2921 #5-59/5 * * * * root mailtest-check |& log-once -1 mailtest-check
2922 #0 * * * * root mailtest-check slow |& log-once -1 mailtest-slow
2923 */5 * * * * root timeout 290 mailtest-check slow |& log-once -12 mailtest-check
2925 m sudo rsync
-ahhi --chown=root
:root
--chmod=0755 \
2926 /b
/ds
/mailtest-check
/b
/ds
/check-remote-mailqs
/usr
/local
/bin
/
2929 test_froms
=(ian@iankelling.org z@zroe.org iank@gnu.org
)
2930 test_to
="testignore@expertpathologyreview.com, testignore@je.b8.nz, testignore@amnimal.ninja, jtuttle@gnu.org"
2932 cat >>/etc
/cron.d
/mailtest
<<EOF
2933 2 * * * * root check-remote-mailqs |& log-once check-remote-mailqs
2937 test_froms
=(testignore@expertpathologyreview.com testignore@amnimal.ninja
)
2938 test_to
="testignore@iankelling.org, testignore@zroe.org, testignore@je.b8.nz"
2941 test_froms
=(testignore@je.b8.nz
)
2942 test_to
="testignore@iankelling.org, testignore@zroe.org, testignore@expertpathologyreview.com, testignore@amnimal.ninja"
2945 cat >/usr
/local
/bin
/send-test-forward
<<'EOF'
2948 $(/sbin/exiqgrep -o 260 -i -r '^(testignore@(iankelling\.org|zroe\.org|expertpathologyreview\.com|amnimal\.ninja|je\.b8\.nz)|jtuttle@gnu\.org)$')
2950 if (( ${#olds[@]} )); then
2951 /sbin/exim -Mrm "${olds[@]}" >/dev/null
2954 for test_from
in ${test_froms[@]}; do
2955 cat >>/usr
/local
/bin
/send-test-forward
<<EOFOUTER
2956 /usr/sbin/exim -f $test_from -t <<EOF
2959 Subject: test \$(date +%Y-%m-%dT%H:%M:%S%z) \$(date +%s)
2961 /usr/local/bin/send-test-forward
2965 m
chmod +x
/usr
/local
/bin
/send-test-forward
2968 rm -fv /etc
/cron.d
/mailtest
2975 m sudo
-u $u mkdir
-p /home
/$u/.cache
2976 set -- /m
/mucache
/home
/$u/.cache
/mu
/m
/.mu
/home
/$u/.mu
2981 if [[ ! -L $f ]]; then
2982 if [[ -e $f ]]; then
2985 m sudo
-u $u ln -sf -T $target $f
2990 # /etc/alias setup is debian specific, and exim postinst script sets up
2991 # an /etc/alias from root to the postmaster, based on the question
2992 # exim4-config exim4/dc_postmaster, as long as there exists an entry for
2993 # root, or there was no preexisting aliases file. postfix won\'t set up
2994 # a root to $postmaster alias if it\'s already installed. Easiest to
2995 # just set it ourselves.
2997 # debconf question for postmaster:
2998 # Mail for the 'postmaster', 'root', and other system accounts needs to be redirected
2999 # to the user account of the actual system administrator.
3000 # If this value is left empty, such mail will be saved in /var/mail/mail, which is not
3002 # Note that postmaster\'s mail should be read on the system to which it is directed,
3003 # rather than being forwarded elsewhere, so (at least one of) the users listed here
3004 # should not redirect their mail off this machine. A 'real-' prefix can be used to
3005 # force local delivery.
3006 # Multiple user names need to be separated by spaces.
3007 # Root and postmaster mail recipient:
3013 # eval: (outline-minor-mode)
3014 # outline-regexp: "\\( *\\)# [*]\\{1,8\\} "
3016 # this is combined with defining outline-level in init.el