This article applies to 123-reg VPS hosting running cPanel
This article will explain how you can switch the DNS service on and off on your 123-Reg VPS using cPanel.
Login to cPanel WHM interface.
Click on the Service Configuration link.
You can then click on the Service Manager link.
Then tick the services you wish to enable, and untick those you don't.
Then click the Save button at the bottom of the page.
Your services will now be enabled or disabled.