Now we are talking about webhosting management in changing the hostname. The Change Hostname option enables you to change the hostname of your server. It is important to choose a hostname that will not be used for any account, and the hostname must be socially acceptable, as it will appear in all mail headers. The hostname must be a FQDN (Fully Qualified Domain Name). All valid hostnames must have at least 2 dots in them, for example entropy.yourdomain.com. find these qualified domain name at web hosting rating.
Your Web Hosting Manager automatically generates 10 random hostnames based on
your current hostname as samples which you can use. Your hostname should be a Fully Qualified Domain Name that will not be used elsewhere on the server. You should never set your hostname to an name that is already used (www, ftp, mail, etc) or to the name of an account on the server (www.domain.com).
Here are steps to overcome:
1. To access the Networking Setup Menu, click on Networking Setup, on the main screen of your WebHost Manager interface.
2. Click on Change Hostname.
3. Enter your changed hostname in the New Hostname field.
4. Click on Change.