2083
cPanel web hosting control panel with SSL (HTTPS)
cPanel Web Hosting Control Panel (SSL)
What is port 2083?
Port 2083 is the HTTPS-encrypted access port for cPanel. It must be used instead of port 2082 to protect login credentials and session data. The access URL is typically https://yourdomain.com:2083 or https://cpanel.yourdomain.com.
Quick checks
$
nc -zv example.com 2083
$
nmap -p 2083 example.com
$
telnet example.com 2083