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.
To troubleshoot this issue, check for other SSLCipherSuite entries in your httpd.conf file.
Service subdomains provide access to cPanel & WHM interfaces and services.
The cpuser_port_authority script assigns one or more 5-digit port numbers for a user's exclusive use.
This feature immediately updates the user's server.