#!/bin/sh
set -e
+# Check we have the necessary arguments.
if [ "$#" -lt 1 ]; then
- echo 'Need mail for letsencrypt (and optionally old server IP).'
+ echo 'Need mail for letsencrypt, mail domain, and optionally old server IP.'
false
fi
mail="$1"
-old_server="$2"
+mail_domain="$2"
+old_server="$3"
config_tree_prefix="${HOME}/config/buster"
echo "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections
-echo "postfix postfix/mailname string $(hostname -f)" | debconf-set-selections
+echo "postfix postfix/mailname string ${mail_domain}" | debconf-set-selections
./install_for_target.sh mail
./copy_dirtree.sh "${config_tree_prefix}/etc_files" "" mail
nft -f /etc/nftables.conf
+
+# Rebuild aliases DB from /etc/aliases
newaliases
+# Update config files without overwriting defaults.
cat "${config_tree_prefix}/other_files/append_postfix_main.cf" >> /etc/postfix/main.cf
cat "${config_tree_prefix}/other_files/append_postfix_master.cf" >> /etc/postfix/master.cf
cat "${config_tree_prefix}/other_files/append_opendkim.conf" >> /etc/opendkim.conf
# TODO: Is it auto-renewed?
certbot certonly --standalone --agree-tos --no-eff-email -m "${mail}" -d "$(hostname -f)"
+# For if FQDN != mail domain name.
+sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/mailutils.conf
+sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/postfix/main.cf
+
# OpenDKIM setup.
selector=$(hostname)$(date +%Y%m%d)
-#opendkim-genkey -D /etc/dkimkeys -s "${selector}"
-opendkim-genkey -d "$(hostname -f)" -D /etc/dkimkeys -s "${selector}"
-sed -i "s/REPLACE_hostname_ECALPER/$(hostname -f)/g" /etc/opendkim.conf
+opendkim-genkey -d "${mail_domain}" -D /etc/dkimkeys -s "${selector}"
+sed -i "s/REPLACE_maildomain_ECALPER/${mail_domain}/g" /etc/opendkim.conf
sed -i "s/REPLACE_selector_ECALPER/${selector}/g" /etc/opendkim.conf
# Dovecot sieve filtering via LMTP. Without this, mail only gets
-# delivered to /var/mail/….
+# delivered to /var/mail/…, with it /var/mail/… remains the fallback
+# inbox, but all else is sieve-filtered to ~/mail/.
cp "${config_tree_prefix}/other_files/dovecot.sieve" /home/plom/.dovecot.sieve
chown plom:plom /home/plom/.dovecot.sieve
+# In addition to our postfix server receiving mails, we funnel mails from a
+# POP3 account into dovecot via fetchmail. It might make sense to adapt the
+# ~/.dovecot.sieve to move mails targeted to the fetched mail account to their
+# own mbox.
cp "${config_tree_prefix}/other_files/fetchmailrc" /home/plom/.fetchmailrc
chown plom:plom /home/plom/.fetchmailrc
chmod 0700 /home/plom/.fetchmailrc
+
+# Pingmail setup.
cp "${config_tree_prefix}/other_files/pingmailrc" /home/plom/.pingmailrc
chown plom:plom /home/plom/.pingmailrc
su -lc "cd && git clone https://plomlompom.com/repos/clone/pingmail" plom
-systemctl daemon-reload
-systemctl enable --now fetchmail_old_account.timer
-systemctl enable --now pingmail.timer
# To allow IMAPS access.
echo "ssl_cert = </etc/letsencrypt/live/$(hostname -f)/fullchain.pem" > /etc/dovecot/conf.d/99-ssl-certs.conf
echo "ssl_key = </etc/letsencrypt/live/$(hostname -f)/privkey.pem" >> /etc/dovecot/conf.d/99-ssl-certs.conf
password=$(pwgen -s 100 1)
-#echo 'mail_privileged_group = mail' >> /etc/dovecot/conf.d/99-mail.conf
echo "plom:${password}" | chpasswd
# Get old mail data, shutdown old postfix server.
su -lc "scp plom@${old_server}:.dovecot.sieve ~" plom
su -lc "scp plom@${old_server}:.fetchmailrc ~" plom
su -lc "scp plom@${old_server}:.pingmailrc ~" plom
- su -lc "ssh plom@${old_server} \"su -lc 'service postfix stop'\"" plom
+ su -lc "ssh -t plom@${old_server} \"su -lc 'service postfix stop'\"" plom
+ #su -lc "ssh plom@${old_server} \"su -lc 'service fetchmail_old_account stop'\"" plom
+ su -lc "ssh -t plom@${old_server} \"su -lc 'service fetchmail stop'\"" plom
cp "${config_tree_prefix}/setup_scripts/mirror_dir.sh" /home/plom/
su -lc "./mirror_dir.sh ${old_server} /home/plom/mail" plom
rm /home/plom/mirror_dir.sh
su -lc "scp plom@${old_server}:/var/mail/plom /var/mail/plom" plom
fi
+# Start everything anew to ensure new configurations.
service opendkim restart
service postfix restart
service dovecot restart
+# Pingmail and fetchmail have some systemd timers waiting. To let systemd
+# know about them, do this.
+systemctl daemon-reload
+systemctl enable --now fetchmail_old_account.timer
+systemctl enable --now pingmail.timer
+
+# Final advice to user.
echo "To put into DNS:"
cat "/etc/dkimkeys/${selector}.txt"
echo "If subdomain, append .subdomain to _domainkeys!"
echo "IMAPS password for user plom is: ${password}"
# todo just for proper mail /sending/:
-# * figure out /etc/mailname ("used by the Mail Transfer Agent (i.e. mail server) to know its own hostname", "will contain the portion after the username and @ (at) sign for email addresses of users on the machine", "Postfix sets myorigin=/etc/mailname. Myorigin is appended (with an @) to any bare name in any address field. During (re)configure, if /etc/mailname exists, it is used as the default value for myorigin in debconf dialogs. Changing it from the default results in postinst rewriting /etc/mailname to the new value.") – figure out if it is actually used?
-# * figure out /etc/postfix/main.cf
-# - myorigin ("specifies the domain that appears in mail that is posted on this machine. The default is to use the local machine name, $myhostname, which defaults to the name of the machine. Unless you are running a really small site, you probably want to change that into $mydomain, which defaults to the parent domain of the machine name")
-# - myhostname ("The internet hostname of this mail system. The default is to use the fully-qualified domain name (FQDN) from gethostname(), or to use the non-FQDN result from gethostname() and append ".$mydomain". $myhostname is used as a default value for many other configuration parameters.")
-# - mydomain ("The internet domain name of this mail system. The default is to use $myhostname minus the first component, or "localdomain" (Postfix 2.3 and later). $mydomain is used as a default value for many other configuration parameters.")
-# - relay_domains ("What destination domains (and subdomains thereof) this system will relay mail to")
-# - mydestination ("The list of domains that are delivered via the $local_transport mail delivery transport.")
-# * figure out /etc/postfix/master.cf (configures what postfix daemons run in what way?)
# * how to check IP safety
# https://talosintelligence.com/reputation_center/lookup?search=$IP
# http://www.anti-abuse.org/multi-rbl-check-results/?host=
# https://www.dnsbl.info/dnsbl-database-check.php
# note that none of these catch the IPs that gmx etc. reject
-
-# other stuff:
-# * figure out /etc/aliases (maps whom what is sent to – just re-use old core.plomlompom.com one? – also, run newaliases to generate /etc/aliases.db)
-# * more /etc/postfix/main.cf
-# - smtpd_recipient_restrictions
-# - smtpd_helo_restrictions
-# - smtpd_client_restrictions
-#
-# for using SMTP server remotely:
-# - SASL mechanism, may use dovecot for that (smtpd_sasl_type, smtpd_sasl_path)
-# - see https://wiki2.dovecot.org/HowTo/PostfixAndDovecotSASL
-# - SASL is not a protocol but an abstraction layer to some auth mechanism
-# - SSL works on transport layer
-# - wild guess: TLS/SSL is used to authenticate /the server/ to the client, while SASL is used to identify /the client/ to the server
-# - then it should be possible to do SASL without TLS/STARTTLS first? (experiment)
-# - the telnet test should offer AUTH then without doing STARTTLS first
projects / config / blobdiff