Linux Administration Cookbook

How it works...

Repositories are generally just places that house packages you might want to install. There's nothing special about them, as they're generally web servers that react as any might, serving you the contents (package) when you request it.

Adding additional repositories is a fairly common sysadmin activity, usually because you're adding your in-house proxy (commonly Artifactory at the moment,) or your developers really need the latest version of NodeJS.

Whatever the reason for adding repositories, just remember that basic security goes a long way (you are, after all, trusting the upstream not to have anything malicious in it), and appreciate that you can create problems for yourself if the repository disappears (which has happened, ...