Where does freepbx-13 log failed gui logins?

I’ve installed freepbx-13 on centos 6 and I’m trying to set up fail2ban to block failed GUI logins but i can’t find where freepbx logs these.

/var/log/asterisk/freepbx_security.log

Authentication failure for Testuser from 11.22.33.44

thanks james

another question if you don’t mind as I can’t get fail2ban working in blocking failed login attempts.
When a failed GUI login occurs does this happen on port 80? or a different port number? I’ve tried both ports 80 and 443 in the pbx-gui section of jail.local but fail2ban isn’t blocking any failed logins. Thanks for any further advice.