I'm using Amazon's EC2 and I can't access cPanel, WHM, or Webmail

Symptoms

I've checked my firewall on the server and the ports are open.  What else can I check?

Description 

You should check your security groups in the Amazon EC2 portal.  By default, they block the cPanel, WHM, or Webmail ports.

Workaround

View this documentation from Amazon to find out how to manage the security groups in Amazon EC2:

• Amazon EC2 security groups for Linux instances
• Adding rules to a security group

You'll need to open the following ports:

• cPanel: 2082 and 2083
• WHM: 2086 and 2087
• Webmail: 2095 and 2096

If you're having trouble with other services, you can review which ports to open in this documentation article:

• How to Configure Your Firewall for cPanel & WHM Services