Your business depends on websites to drive customers. If your data center makes use of Linux, chances are your websites are powered by the Apache web server. That being the case, you might want to know how to control that service.
Of course, you might be thinking, "Isn't Apache enabled and started upon installation?" Sure it is, and it will remain so, unless you take action. But there are times when you might need to stop, restart, and even disable the web server. That's why you need to know how to control it.