Expertise level: Medium
Setting the hostname on a server is very important.
If it is not set correctly, you will receive an email from cPanel such as this one:
"IMPORTANT: Do not ignore this email.
The hostname (host.domain.com) resolves to . It should resolve
to X.X.X.X. Please be sure to correct /etc/hosts as well as the
'A' entry in zone file for the domain."
Follow these steps to set the hostname of the server correctly:
- Login to WHM as root.
- Go to "Networking Setup" section.
- Click on " Change Hostname".
- If your server acts as the DNS server, please click on the "Add an A entry for your hostname" button.
These are the important points you should follow:
- It is important to choose a hostname that you will NOT be using for any account.
- Your hostname must be a FQDN, all valid hostnames should have 2 dots in them (ex: host.domain.com).
- The hostname MUST resolve to the primary IP address of your server. Make sure you add an A record for that hostname in your domain's DNS zone.
Check the relevant screen captures: