Whats a good free firewall for a Unix Apache server ?

Question

thanks

Answer 1

That's easy........

OpenBSD OS has Apache as it's part of it's base it comes with PF Firewall (if you know Unix you configure your rule set) kicks ***.

If you want to protect your server I'd recommend OpenBSD it's super secure!

http://www.openbsd.org

Answer 2

Well you are already setup with IPTables so you can use them. But if it were me I would install something like
http://www.ispconfig.org/ which includes a firewall spam filter etc and allows easy setup of additional domains..

Here is a good primer on firewall setups
http://security.linux.com/security/04/10/11/2030249.shtml?tid=100&tid=35

And here is a good firewall
http://www.smoothwall.org/