As many of you are probably already aware, I’m a Linux trainer for Guru Labs. We do all Linux training, including Red Hat, Fedora, SUSE, and others. If your company is looking for good, solid Linux training, Gurus at Guru Labs are the cream of the crop, and I’d highly recommend it. I’ve been doing a lot of Red Hat training lately, and during the training, I cover how to manage services on a Red Hat system. Lately, I’ve been meaning to translate this over to Ubuntu, and put it in a series of posts. As a result, the subject of this post is all about learning runlevels, and how to manage services effectively, such as Apache, Squid, SSH, and so on, in Ubuntu. So, let’s get started.