How To change the hostname over SSH?

Question

Instead of updating the hostname through WHM, how can I do it through SSH for ease of access? 

Answer

When updating the hostname through WHM, it uses the set_hostname utility to update the hostname in multiple locations throughout the server. This is located in: 

/usr/local/cpanel/bin/set_hostname

Some more information on our set_hostname script can be located in the following documentation page: 

The set_hostname Utility