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