Troubleshooting

Troubleshooting a failed systemd unit (with examples)

Learn how to troubleshoot failed systemd units, examples, possible causes, and how to resolve them.

Nstat

The command nstat provides network interface statistics and can be used for monitoring and troubleshooting.

Troubleshooting a full /boot partition on Ubuntu

Is your /boot partition full and apt can no longer install updates? Learn how to fix this issue and what you can do to prevent it.

Understanding what runs on your Linux system (and why)

Linux systems have a lot of processes running by default. Let's dive into how programs are started and how you can see all details of each running process.

Strace cheat sheet

The strace utility is diverse and helpful in performance tuning, troubleshooting, and monitoring process activity. Get the most out of this powerful tool!

GPG key generation: Not enough random bytes available

A common error when creating keys with GnuPG is: Not enough random bytes available. In this article we have a look at the cause and solution.

Lynis stuck during testing

How to deal with issues when running Lynis and looks like it is stuck during any testing being performed. Finding the causing in a few quick steps.