WP_FAIL2BAN_SYSLOG_INLINE_HOST

Log hostname in message body.

Default setting: false

systemd

You should enable this if your OS uses systemd.

Moves the hostname from the syslog identifier to the message body. For example:

define(‘WP_FAIL2BAN_SYSLOG_INLINE_HOST’, true);

 Jul  7 12:34:56 bistromath wordpress[4242]: Blocked authentication attempt on fqdn.example.com for Agrajag from 192.0.42.1

instead of:

define(‘WP_FAIL2BAN_SYSLOG_INLINE_HOST’, false);

 Jul  7 12:34:56 bistromath wordpress(fqdn.example.com)[4242]: Blocked authentication attempt for Agrajag from 192.0.42.1