Set up a Wireguard VPN in 15 minutes

Wireguard is the new kid on the block when it comes to VPNs. It offers significant advantages compared to the traditional choices of OpenVPN and IPSec. It is very lean with about 5,000 lines of code. Thanks to that, the codebase has already gone through a security. More importantly, it is extremely easy to set […]

Use passphrases instead of passwords

The other day I wanted to buy a concert ticket from a website I haven’t visited before. That meant creating a new account (even though that shouldn’t really be necessary). I went through the ordeal of filling in my details, clicked “Confirm” and *bam*… the password was not good enough. As is usual, the password […]

Automatic ClamAV Scans With Email Notifications

You might consider antivirus software unneccessary on a Linux box. But if you are running a public facing server, it might be a good idea to run it regardless. Why is that? Even though malware probably can’t affect your server much, it can still use it to infect users. To prevent that, we will learn […]

Run Docker Container as Regular User

Docker has become omnipresent in recent years. However, by default, it requires root privileges to run containers. Obviously, this is not good security-wise. But a simple change will allow you to run docker container as a regular user. In the examples below, I am using Ubuntu 17.04, but the commands should be the same for […]

Change Raspberry Pi Password, Username and Hostname

Rapsberry Pi is the single most popular computer in the world. And it is easily one of the most hacked systems as well. That’s due to single fact – most users never change the default username and password. But is a relatively a simple process, so there is no reason not to do it. If […]

Setting Up Headless Raspberry Pi Server

The Raspberry Foundation has recently launched Raspberry Pi 3, a new version of their popular developer board. It features a faster ARM processor, 1 GB of RAM and, most importantly, on-board wifi. This makes it even better choice for a headless Linux server. This guide shows how to do the basic Raspberry Pi server setup, […]