How to Enable or Disable Service (Proxy) Subdomains

Question

How do I enable or disable service (proxy) subdomains? 

Answer

You can enable service subdomains (formerly known as proxy subdomains) via the Service subdomains setting in WHM’s Tweak Settings interface (WHM >> Home >> Server Configuration >> Tweak Settings). Conversely, you can disable service subdomains if you disable this setting.

You can read more about service subdomains here:

Service and Proxy Subdomains

Note that it is not possible to selectively disable service subdomains. You can alter the Zone Templates so that they do not resolve. This is documented here:

Edit Zone Templates