202 lines
7.7 KiB
Bash
Executable File
202 lines
7.7 KiB
Bash
Executable File
#!/bin/bash
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if [ "${EUID}" -ne 0 ]; then
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echo "You must be root to run this installer."
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exit
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fi
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# check for Ubuntu 20.04
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if ! grep -q "Ubuntu 22.04" /etc/issue; then
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echo "This installer is only tested on Ubuntu 22.04. If you are on a"
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echo "different version of Ubuntu or a Debian/Debian based distro"
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echo "and want to try running this installer open this script and"
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echo "comment out the exit command below this line and re-run."
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exit
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fi
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# check if install is already in place
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if [ -d "/var/vmail/" ]; then
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echo "vmail-stack is already installed, bailing out."
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exit
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fi
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# check for existing mail server software installs
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if [ -d "/etc/exim4/" ] || [ -d "/etc/dovecot/" ]; then
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echo "WARNING: Exim and/or Dovecot are already installed."
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echo "This installer will overwrite existing configurations."
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echo -e "You have five seconds to execute ctrl-c to cancel this install.\a"
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sleep 5
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fi
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apt-get update
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# install pwgen, used to create random passwords
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DEBIAN_FRONTEND=noninteractive apt-get -y install pwgen
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# install mariadb (mysql)
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if [ ! -d "/etc/mysql/" ]; then
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MARIADBPWORD=`pwgen 12 1`
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DEBIAN_FRONTEND=noninteractive apt-get -y install mariadb-client mariadb-server
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# set unix_socket auth for root
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mysql -e "GRANT ALL ON *.* TO 'root'@'localhost' IDENTIFIED VIA unix_socket WITH GRANT OPTION"
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# create nagios user for monitoring server status only
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mysql -e "CREATE USER 'nagios'@'localhost' IDENTIFIED WITH mysql_native_password AS '';"
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mysqladmin flush-privileges
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fi
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# create vmail user & db
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mysqladmin create vmail
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mysql vmail < vmail.sql
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VMAILPASS=`pwgen -1 12`
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mysql -e "CREATE USER 'vmail'@'localhost' IDENTIFIED BY '$VMAILPASS';"
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mysql -e "GRANT ALL PRIVILEGES ON vmail.* TO 'vmail'@'localhost';"
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mysqladmin flush-privileges
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# install mail server software
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DEBIAN_FRONTEND=noninteractive apt-get -y install exim4-daemon-heavy spf-tools-perl spamassassin srs libclass-dbi-mysql-perl dovecot-core dovecot-imapd dovecot-mysql dovecot-pop3d dovecot-lmtpd
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# configure system users
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DEBIAN_FRONTEND=noninteractive apt-get -y install ssl-cert
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usermod -a -G ssl-cert Debian-exim
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useradd --create-home --home-dir /var/vmail --shell /usr/sbin/nologin --system --user-group vmail
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# configure vmail user .my.cnf for db access
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install --owner=vmail --group=vmail --mode=640 /dev/null /var/vmail/.my.cnf
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echo "[client]" > /var/vmail/.my.cnf
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echo "host = localhost" >> /var/vmail/.my.cnf
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echo "database = vmail" >> /var/vmail/.my.cnf
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echo "user = vmail" >> /var/vmail/.my.cnf
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echo "password = $VMAILPASS" >> /var/vmail/.my.cnf
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echo "socket = /var/run/mysqld/mysqld.sock" >> /var/vmail/.my.cnf
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# configure vmail dirs
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chmod 750 /var/vmail/
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if [ ! -d "/etc/ssl/dkim" ]; then
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mkdir /etc/ssl/dkim
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fi
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chown Debian-exim:ssl-cert /etc/ssl/dkim
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chmod 750 /etc/ssl/dkim
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# spamassassin config
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sed -i "s|userpref|sa_userpref|g" /usr/share/doc/spamassassin/sql/userpref_mysql.sql
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sed -i "s|username varchar(100)|username varchar(255)|g" /usr/share/doc/spamassassin/sql/userpref_mysql.sql
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sed -i "s|TYPE=MyISAM||g" /usr/share/doc/spamassassin/sql/userpref_mysql.sql
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mysql vmail < /usr/share/doc/spamassassin/sql/userpref_mysql.sql
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sed -i 's|OPTIONS="--create-prefs --max-children 5 --helper-home-dir"|OPTIONS="-x -q -v -u Debian-exim -m 5"|g' /etc/default/spamassassin
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sed -i 's|CRON=0|CRON=1|g' /etc/default/spamassassin
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cp etc/spamassassin/*.cf /etc/spamassassin/
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sed -i "s|user_scores_sql_password password|user_scores_sql_password $VMAILPASS|g" /etc/spamassassin/sql.cf
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chown root:root /etc/spamassassin/local.cf
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chmod 644 /etc/spamassassin/local.cf
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chown debian-spamd:mail /etc/spamassassin/sql.cf
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chmod 640 /etc/spamassassin/sql.cf
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# create local systemd dir, used by srsd & vmail-cron
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if [[ ! -d /usr/local/lib/systemd/system ]]; then
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mkdir -p /usr/local/lib/systemd/system
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fi
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# srsd
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# bug fixes for libmail-srs-perl. still needed as of v0.31-6 on Ubuntu 22.04
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sed -i 's|/tmp/srsd|/run/srsd/srsd.sock|' /usr/share/perl5/Mail/SRS/Daemon.pm
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sed -i '/Until we decide that forward/,+3d' /usr/share/perl5/Mail/SRS/Daemon.pm
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cp systemd/srsd.service /usr/local/lib/systemd/system/srsd.service
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chmod 644 /usr/local/lib/systemd/system/srsd.service
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systemctl daemon-reload
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systemctl enable srsd
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systemctl start srsd
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# exim config
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maildomain=`hostname -d`
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sed -i 's/size 10M/daily/g' /etc/logrotate.d/exim4-paniclog
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install --owner=Debian-exim --group=Debian-exim --mode=640 /dev/null /etc/exim4/relay_domains
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cp etc/exim4/* /etc/exim4/
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chmod 640 /etc/exim4/exim4.conf
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chown Debian-exim:Debian-exim /etc/exim4/autowhitelist.filter
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chmod 640 /etc/exim4/autowhitelist.filter
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chown Debian-exim:Debian-exim /etc/exim4/return-resender.sh
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chmod 640 /etc/exim4/return-resender.sh
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chown Debian-exim:Debian-exim /etc/exim4/skip_greylisting_hosts
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chmod 640 /etc/exim4/skip_greylisting_hosts
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sed -i "s|example.com|$maildomain|g" /etc/exim4/skip_greylisting_hosts
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sed -i "s|password|$VMAILPASS|g" /etc/exim4/exim_local.conf
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sed -i "s|example.com|$maildomain|g" /etc/exim4/exim_local.conf
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touch /etc/exim4/srsd.secret
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chmod 640 /etc/exim4/srsd.secret
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chown Debian-exim:Debian-exim /etc/exim4/srsd.secret
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pwgen -N 1 -cny 64 > /etc/exim4/srsd.secret
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sed -i "s|^QUEUERUNNER.*|QUEUERUNNER='separate'|g" /etc/default/exim4
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sed -i "s|^QUEUEINTERVAL.*|QUEUEINTERVAL='15m'|g" /etc/default/exim4
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# dovecot config
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mkdir /etc/dovecot/sites.d
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cp -a etc/dovecot/* /etc/dovecot/
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chgrp dovecot /etc/dovecot/dovecot-sql.conf.ext
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chmod 640 /etc/dovecot/dovecot-sql.conf.ext
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sed -i "s|password=password|password=$VMAILPASS|g" /etc/dovecot/dovecot-sql.conf.ext
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if ! [ -d "/usr/local/libexec" ]; then
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mkdir /usr/local/libexec
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fi
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cp libexec/vmail-quota-warning.sh /usr/local/libexec/
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chmod 750 /usr/local/libexec/vmail-quota-warning.sh
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chown dovecot:mail /usr/local/libexec/vmail-quota-warning.sh
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# restart services
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systemctl enable spamassassin
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systemctl restart spamassassin
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systemctl restart exim4
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systemctl restart dovecot
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chmod 755 bin/*
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cp bin/* /usr/local/bin/
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# install & enable vmail systemd cron
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cp sbin/vmail-cron.sh /usr/local/sbin/
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chmod 755 /usr/local/sbin/vmail-cron.sh
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cp systemd/vmail-cron.* /usr/local/lib/systemd/system/
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chmod 644 /usr/local/lib/systemd/system/vmail-cron.*
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systemctl enable vmail-cron.timer
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systemctl start vmail-cron.timer
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# enable email ports in firewalld
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[[ -d /etc/firewalld/ ]]; then
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firewall-cmd --permanent --zone=public --add-service=smtp
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firewall-cmd --permanent --zone=public --add-service=smtp-submission
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firewall-cmd --permanent --zone=public --add-service=smtps
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firewall-cmd --permanent --zone=public --add-service=imap
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firewall-cmd --permanent --zone=public --add-service=imaps
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firewall-cmd --permanent --zone=public --add-service=pop3
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firewall-cmd --permanent --zone=public --add-service=pop3s
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firewall-cmd --zone=public --add-service=smtp
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firewall-cmd --zone=public --add-service=smtp-submission
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firewall-cmd --zone=public --add-service=smtps
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firewall-cmd --zone=public --add-service=imap
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firewall-cmd --zone=public --add-service=imaps
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firewall-cmd --zone=public --add-service=pop3
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firewall-cmd --zone=public --add-service=pop3s
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else
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echo
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echo "firewalld not installed, not opening email ports in firewall."
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fi
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# fail2ban
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if [[ -d /etc/fail2ban/ ]]; then
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chmod 644 etc/fail2ban/*/*.conf
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cp -a etc/fail2ban/* /etc/fail2ban/
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sed -i "s|postmaster|postmaster@$maildomain|g" /etc/fail2ban/action.d/mail-ratelimit.conf
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echo
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echo "Fail2ban rate limit will email postmaster@$maildomain."
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echo "Change postmaster@$maildomain in /etc/fail2ban/action.d/mail-ratelimit.conf to suit your needs."
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else
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echo
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echo "fail2ban not installed, skipping fail2ban email configs."
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fi
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echo "root: webmaster@$maildomain" >> /etc/aliases
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echo
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echo "Email for root user notifications are configured to go to webmaster@$maildomain."
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echo "Update /etc/aliases to suit your needs."
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