To access website while developing we often need to see how it looks, there is an option available on the WHM server to check website using serverip/~cPanel_username (Temporary URL) but whenever tried to access temporayr URL, getting 404 Not Found error.
For example :- 1.2.3.4/~testing where, 1.2.3.4 is the server's IP address and "testing" is the cPanel username.
Solution :-
You will need to exclude particular cPanel username from Apache mod_userdir tweak setting through WHM > Security Center > Apache mod_userdir Tweak.