Running out of space on your root partition is one of the most frustrating problems a Linux user can face. The good news is that if you set up LVM during installation, you can grow your root filesystem on the fly without wiping the disk or reinstalling your operating system. In this guide, I will … Read more
You SSH into a Linux server and everything feels sluggish. Commands take seconds to respond. The load average is climbing past 20. You run top and the CPU usage looks fine, maybe even idle, yet something is clearly wrong. The %wa column tells the story: your system is drowning in disk I/O. High iowait is … Read more
Accidentally deleting a file on an ext4 Linux filesystem feels permanent, but the data often survives long after the rm command runs. The trick is acting fast and using the right tools before that freed disk space gets overwritten. In this guide, I will show you how to recover deleted files on an ext4 Linux … Read more
Nothing is more frustrating than having a working network connection but zero internet access because domain names refuse to resolve. If you are running Ubuntu 20.04, 22.04, or 24.04, the culprit is almost always systemd-resolved, the local DNS stub resolver that ships enabled by default on every modern Ubuntu installation. I have spent countless hours … Read more
If your Linux server has been running for a few months, you have probably watched /var/log/journal grow into the gigabytes. I have seen systemd-journald quietly consume 8 GB on a single machine before I noticed. This guide shows you exactly how to clear a full systemd journal right now, and how to cap its size … Read more