One of the most trusted and a highly reliable Firewall is CSF or ConfigServer Security and Firewall. This can be easily integrated with WHM/cPanel and is widely preferred by hosting providers to protect the Linux hosting servers.
CSF Firewall Supported distro
This Firewall is supported on the following Linux distros:
- RedHat v7.3, v8.0, v9.0
- RedHat Enterprise v3, v4, v5 (32/64 bit)
- CentOS v3, v4, v5 (32/64 bit)
- Fedora Core v1 to v14(32/64 bit)
- openSUSE v10, v11
- Debian v3.1, v4, v5, v6
- Ubuntu v6.06 LTS, v8.10, v9.10, v10.04 LTS, v10.10
- Mandriva 2009, 2010
Moreover CSF is compatible with :
- Virtuozzo (need appropriate iptables configuration on host server )
- VMware
- Xen
- VirtualBox
- OpenVZ (need appropriate iptables configuration on host server )
- MS Virtual Server
For Full features please visit the CSF webpage