Intrusion detection not working?

When I navigate to intrusion detection under system admin. It says stopped but when i click start. the screen refreshes and it still says stopped. I am using the current version of system admin version: 12.0.44. thoughts?

From the Linux CLI:

service fail2ban start

I’ve never been able to use that page successfully.

You can also turn F2B on at boot:

chkconfig fail2ban on