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How do I edit a server's resolver configuration?

Jefferson Sherlin
  • Updated

Question

How do you edit the server's resolver configuration from the command line?

Answer

Using WHM
  1. Access WHM as the root user
  2. Navigate to Home / Networking Setup / Resolver Configuration.
  3. Click Proceed and follow the prompts of the configuration wizard.
Using Command Line
  1. Access the server's command line as the root user via SSH or Terminal in WHM.
  2. Open the /etc/resolv.conf file in your preferred text editor.

  3. Comment out the nameserver entries you do not want by adding a # before the nameserver line.

    CONFIG_TEXT: #nameserver 192.168.0.1

  4. Add the new nameserver entries.
  5. Save changes and exit the text editor.

CPANEL_WARN: If you have already set up the resolver configuration via the menu in WHM, then any changes made to the /etc/resolv.conf file will be overwritten. 

 

Note: Using public DNS servers, such as Google's 8.8.8.8 and 8.8.4.4, may cause RBLs, such as Spamhaus, to not function correctly.

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