Have anyone install firewall on your server? I want to know which firewall is good to install.

I found that APF(Advanced Policy Firewall) is a good one. Want to see other people opinions. Thank you

You need to list the OS and requirements [personal, network, etc]. Each firewall is limited by scalability issues, and each has it's own deployment solutions.

For instance, if you're talking about firewall on your home workstation; try Net-Commando.

If you're talking about firewall on your LAN, try a combination of router filters and NetMax.

iptables :)