For some reason if you want to restart Apache server for your VPS hosting account, then you can do so easily using few commands or through WHM. You can restart your Apache server without affecting other process by using graceful restart command.You will have to use : service httpd graceful. [ using graceful restart command, none of running apache processes would be affected or killed ]Whereas if you want to kill all existing http processes and restart your apache server then you can use following command :-
service httpd stop
service httpd startssl

If you don’t want to use any of above commands for restarting Apache then you can just restart Apache through your WHM control panel. You just have to login to WHM and select the services you want to restart under “ restart services “ section from your WHM.

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