#Debian / #Ubuntu Linux Specific #Commands to Start/Stop/Restart #Apache:
Restart Apache 2 web server, enter: # /etc/init.d/apache2 restart. $ sudo /etc/init.d/apache2 restart.
To stop Apache 2 web server, enter: # /etc/init.d/apache2 stop. ...
To start Apache 2 web server, enter: # /etc/init.d/apache2 start.
More Info: https://linuxapt.com/blog/27-configure-and-host-an-application-in-apache-web-server