fail2ban not working
You can start iptables firewall with the command:
This screen is text and may not show that well on a terminal but you can Tab around well enough. Tab to where it shows Security Level and press spacebar to leave an asterisk against Enabled.
Tab to SELinux and leave as Disabled
Tab to OK and press Enter
This will start the firewall and create all of the right files etc.
To determine the run levels in which ipables will start, type:
chkconfig --list iptables
you should see:
iptables 0:off 1:off 2:on 3:on 4:on 5:on 6:off
This shows that ipables will start in run levels 2 through 5 (the default run level and what you're most likely in now is 3).