question about the builtin firewall

[Ovidiu]

when using the builtin firewall from ispconfig where do these firewall rules get stored? what kind of firewall is being used? I am just getting ionformed, reading about ipchains and iptables , I have no knowledge about these two systemy yet, I just started reading and thought it might be a good idea to see where these rules I setup are being stored and how they look

so can anyone give me some hints whats being used and where in the system I can look up these settings?