زمان تغییر دی ان اس یه خورده طول میکشه تا برا همه باز بشه

make your hostname something like

srv1.myownsite.com
or
web.myownsite.com

something along those lines...then add an A entry.

You might also have to run the fixrndc script in cpanel.

SSH into the server and run.

./scripts/fixrndc


service cpanel restart