That should really be it. By now you most likely have a fully functioning Debian installation, with more or less everything set up. Of course, there is still a lot to do, and there is always a chance that something went wrong that is not covered on these pages. What then?
There are, of course, plenty of forums on the internet to ask around, and you will possibly even find a forum on this site later on (not quite sure how soon though), but before you go on ahead asking, you should make sure that you've tried to uncover all the mysteries for yourself first. Of course, search engines are your friends, but to save you some typing, here are a few resources you can check out right away. These pages might be, in a future date, extended with some of what's written elsewhere, but for now, these external sources would be your best bet to find more information. also, who really wants to reinvent the wheel, right? (I, for one, do...)
Some of the suggested articles here might concern other distributions, most likely Ubuntu or Linux Mint. As both of those are based on Debian, the instructions should be more or less the same for your own system too.
One thing to remember is, if you don't have
sudo installed or enabled, you will need to gain root privileges before executing anything that starts with
sudo in the instructions.
If there's anything you're interested in or something you cannot figure out and is not covered here, the official Debian documentation is usually the best place to start looking. It might look intimidating, and it is certainly very long, but the level of detail (and expertise) it offers is still unparalleled.
Sometimes firmware is necessary for normal operation of stuff like wireless cards, sound, etc.
GPU vendors were, and often still are, notorious when it comes to neglecting Linux drivers. The following articles can be life-savers if you run into problems
However secure Linux is compared to many other operating systems, it can always be more secure. Fortunately security updates are enabled by default, still
Sometimes the basics are just not enough, are they? Connecting to a WiFi or wired network is all fine, but what if you want more:
If the basics are not quite enough:
Can be a convenience, when you are the only user on the PC or don't care to password protect anything on it.