sudo systemctl status fail2ban

returns:

fail2ban.service - Fail2Ban Service
     Loaded: loaded (/usr/lib/systemd/system/fail2ban.service; enabled; preset: enabled)
     Active: active (running) since Fri 2025-05-30 19:38:01 UTC; 6s ago
       Docs: man:fail2ban(1)
   Main PID: 3108 (fail2ban-server)
      Tasks: 5 (limit: 154383)
     Memory: 18.8M (peak: 19.8M)
        CPU: 110ms
     CGroup: /system.slice/fail2ban.service
             └─3108 /usr/bin/python3 /usr/bin/fail2ban-server -xf start

May 30 19:38:01 mediaserver systemd[1]: Started fail2ban.service - Fail2Ban Service.
May 30 19:38:02 mediaserver fail2ban-server[3108]: 2025-05-30 19:38:02,022 fail2ban.configreader   [3108]: WARNING 'allowipv6' not defined in 'Definition'. Using default one: 'auto'
May 30 19:38:02 mediaserver fail2ban-server[3108]: Server ready