How to speed up your internet connection on Linux

The speed of your internet connection is something that is affected by a lot of different elements, most of which are out of your reach and/or jurisdiction. That said, there isn’t a way to transform a slow internet connection into a lighting-speed one if your provider is just not giving you enough bandwidth, no matter what you do. This post is only aiming to provide generic advice on how to make things a little bit better if possible, and if applicable to each case.