Hi I have installed ISPconfig and must say think it is a fantastic application

, thankyou so much to the developers.
I was wondering if it is possible to configure the ISPconfig firewall so that you can limit ssh access to certain IP addresses?
With my other linux server I have an explicit REJECT in /etc/sysconfig/iptables for port 22 and then just add an ACCEPT in for the source IP addresses I want to accept and it works well.
-A RH-Firewall-1-INPUT -p tcp -m tcp -s 172.16.8.35 --dport 22 --syn -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 22 --syn -j REJECT
Where is the script or config file for the ISPconfig firewall? Can I manually edit the script without breaking anything? I dont like having ssh access open to anyone.
Thanks in advance
Matt.