Dear Maintainer,
fail2ban comes configured with:
journalmatch = _SYSTEMD_UNIT=sshd.service + _COMM=sshd
in /etc/fail2ban/filter.d/sshd.conf
The systemd unit for SSH has been renamed to ssh.service for quite some
time now and the line should read:
journalmatch = _SYSTEMD_UNIT=ssh.service + _COMM=sshd
Regards,
Robert
This is a duplicate of #1078208, already fixed in trixie but apparently not yet in bookworm.