While iptables is available by default on your cPanel server, which software should be installed for firewall management?
Please note that cPanel does not support the configuration of firewalls. However, this document may be helpful in determining which firewall software to use:
How to Configure Your Firewall for cPanel & WHM Services
In addition, cPanel does not provide support for the installation of third-party firewall software However, ConfigServer Security & Firewall (CSF) is often utilized and recommended for its ease of use and for its cPanel plugin that allows for firewall management via WHM. You can read about CSF in their documentation here:
ConfigServer Security & Firewall (csf)
You can find more information on third-party firewall software options for your cPanel server here: