[BR]: Failed during configuration: Have not found any log file for sshd jail

[Arne19]

First sorry if this issue is already known, I couldn't find it here so far.

Environment:

freshly install Debian Bookworm on a remote server.

• Fail2Ban version : v1.0.2
• OS, including release name/version : Latest Debian 12
• Fail2Ban installed via OS/distribution mechanisms
• You have not applied any additional foreign patches to the codebase
• Some customizations were done to the configuration (provide details below is so)

The issue:

Hi, on a just freshly installed Debian Bookworm I had this issue with fail2ban. Restarting it, rebooting or reinstallation didn't help. I had to manually change the backend from auto to systemd and then it worked.

Steps to reproduce

install debian bookworm, install ufw and fail2ban. Enable and start fail2ban.

Expected behavior

Fail2ban directly starts and filtering sshd.

Observed behavior

Fail2ban can't be started until manually change the backend from auto to systemd

Any additional information

Configuration, dump and another helpful excerpts

Any customizations done to /etc/fail2ban/ configuration

No customization was done on fail2ban configs.

Relevant parts of /var/log/fail2ban.log file:

 fail2ban.configreader   [2192]: WARNING 'allowipv6' not defined in 'Definition'. Using default one: 'auto'
 fail2ban                [2192]: ERROR   Failed during configuration: Have not found any log file for sshd jail
fail2ban                [2192]: ERROR   Async configuration of server failed

Relevant lines from monitored log files:

[sebres]

Dup of #3292
See #3292 (comment) for a solution.