Some long-needed server 💙

Just upgraded from Debian 11 to 12. And while I was at it rescaled the vServer at Hetzner from two cores to four – which is even cheaper: I save about four €uros per month. And it was just a few clicks. Oddly satisfying.

Update: Why certainly, there were some (not so obvious) issues:

• SSH users moved from the _ssh group in /etc/groups to AllowUsers in /etc/ssh/sshd_config
• spamd was not installed, anymore
• dovecot had a permission issue with an acme.sh certificate
• I had to rebuild the json3k services

Through the mail issues I found several ancient mbox files in /var/mail that contained messages that must have been slipped through the milter, probably at a time the mail server was configured with maildrop (now it’s procmail). Spring Fall cleaning FTW!