Question

Which ports should I open on a DNSOnly server?

 

Answer

We recommend opening the following ports in your firewall settings on a DNSOnly server:

  • 37 (rdate)
  • 53 TCP and UDP (DNS)
  • 2086 (WHM)
  • 2087 (WHM)
  • 2089 (Licensing)

Please note when connections on port 2089 (licensing) fail during license checks, the system will attempt further connections over the following additional ports:

  • 23
  • 25
  • 80
  • 110
  • 143
  • 993
  • 995

Further information on configuring your firewall for cPanel & WHM services can be found here:

How to Configure Your Firewall for cPanel & WHM Services

 

Additional Resources

What ports should I open in my network firewall?

What ports does cPanel use for licensing?