Zum Inhalt springen- Download the server edition of Ubuntu 18.04 and install it as usual
- Rename the network interface to eth0
- Remove netplan, install ifupdown and configure IP addresses
- Configure UFW (Uncomplicated Firewall)
Open TCP ports 22, 25, 80, 443, 465, 993, 8080
Open UDP port 123 - Add nameservers
- Install ISPConfig according to the Perfect Server installation instructions
- Install missing packages for amavisd and configure it for ISPConfig 3.1
- Secure ISPConfig installation with SSL certificates as described at howtoforge.com
- Update Spamassassin
- Allow dots for IMAP folders for Dovecot Listescape plugin
- Install Sieve service for Roundcubemail and Thunderbird
- Install ISPConfig Automail
- Install SPF, DKIM, DMARC
- Install Spamassassin autolearn
- Improve Postfix antispam settings
- Install Munin
See also