VirtualBox 7.2.2 fails to start VMs
After a recent upgrade to VirtualBox 7.2.2, all of my many VMs would crash within seconds as they tried to start. While this isn't exactly...
How to remove a stuck kernel from GRUB
Here’s how to fix the GRUB menu configuration from the command line.
My first sysadmin mistake
If you work in IT, you know that things never go completely as you think they will. At some point, you’ll hit an error, or...
The case of the Borked HDD
It all started this morning when I went to start my regular Saturday yoga session. I have a room at home that has all my...
Using htop to manage your Linux system
I use a lot of tools in my daily SysAdmin role. One of the most important ones in my toolkit is htop. The htop program...
A little programming goes a long way
It helps to know some programming to solve these little problems.
How to use udev
Udev is flexible but complex. Learn how to use udev so you can customize how Linux recognizes your devices.
How to debug a web server error with ‘wget’
The wget command line tool can provide detailed information about what’s happening on a web server.
systemd — #12: Fixing systemd-resolved name service failures using Ansible
Name resolution and the ever-changing networking landscape.
systemd — #10: Analyze Linux startup performance
Use systemd-analyze to get insights and solve problems with Linux startup performance.
systemd — #9: Using systemd journals to troubleshoot transient problems
Find the root cause of hard-to-track errors by diving into your systemd journals.
systemd — #4: How to use systemd as a troubleshooting tool
systemd is powerful troubleshooting tool. The information we can extract from it points the way toward solving problems.
How I used journalctl to Determine the Source of an Electrical Problem
The journalctl command can extract interesting data from the systemd journals. I never thought it could help with hardware electrical problems – until I tried it.
Liquid Cooling Failure
Modern motherboards make a cooling failure less catastrophic than it could have been.