July 3, 2019
What Ports Should be Open for cPanel/WHM
Most of the VPS and Shared Hosted servers are using cPanel and WHM for the visual interface accessing the files and other things. It is best practices for blocking all unnecessary ports in the firewall due to the security reason. Only a few things need to be open that helps the communication between the cPanel/WHM with the server. So you should always need to block all unnecessary ports using the firewall and the below commands used to communicate cPanel/WHM with the server.
We recommend the following ports are presented in your firewall to perfectly use cPanel and WHM
| PORT | PROTOCOL | SERVICE ON PORT |
|---|---|---|
| 20 | TCP/UDP | FTP data |
| 21 | TCP/UDP | TCP/UDP |
| 22 | TCP/UDP | SSH (Secure Shell) |
| 25 | TCP | SMTP (Simple Mail Transfer Protocol) |
| 53 | TCP/UDP | DNS (Domain Name System) |
| 80 | TCP/UDP | HTTP (Hypertext Transfer Protocol) |
| 110 | TCP | POP3 (Post Office Protocol v3) |
| 143 | TCP | IMAP (Internet Message Access Protocol) |
| 443 | TCP | HTTPS (Hypertext Transfer Protocol over SSL/TLS) |
| 465 | TCP | SMTP over SSL |
| 993 | TCP | IMAPS (Internet Message Access Protocol over SSL) |
| 995 | TCP | POP3S (Post Office Protocol 3 over TLS/SSL) |
| 2077 | TCP | Webdisk (cPanel Specific) |
| 2078 | TCP | Webdisk with SSL (cPanel Specific) |
| 2082 | TCP | cPanel default (cPanel Specific) |
| 2083 | TCP | cPanel default SSL (cPanel Specific) |
| 2086 | TCP | WHM (cPanel Specific) |
| 2087 | TCP | WHM with SSL (cPanel Specific) |
| 2095 | TCP | cPanel Web mail (cPanel Specific) |
| 2096 | TCP | cPanel Web mail with SSL (cPanel Specific) |
