How to Configure Your Firewall for cPanel & WHM Services
This document lists the ports that cPanel & WHM uses, and which services use each of these ports, to allow you to better configure your firewall.
ports
How to Troubleshoot PCI Compliance Scans
To troubleshoot this issue, check for other SSLCipherSuite entries in your httpd.conf file.
Service and Proxy Subdomains
Service subdomains provide access to cPanel & WHM interfaces and services.
The cpuser_port_authority Script
The cpuser_port_authority script assigns one or more 5-digit port numbers for a user's exclusive use.
The License Callback Mechanism
This feature immediately updates the user's server.