How to recover a Linux Mint / Ubuntu System’s Root Password
This article explains how to get your Linux system password reset. To reset your lost or fogotten password: Reboot your computer / Turn your computer
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How to recover/reset forgotten Gnome Keyring Password?
What is a Linux Keyring? A Linux keyring is a system component that securely stores and manages sensitive information such as passwords, authentication tokens, and
How do you take a screenshot on a Linux desktop?
Printscreen works. If you’re using Chrome, try Awesome Screenshot, but it’s got flaws and sometimes just doesn’t work. 95% good, 5% bad. Otherwise, try: sudo
How do you continuously watch / monitor a Linux command?
Sometimes you want to continuously observe a Linux command. Instead of up arrow and enter the whole time, try this: watch -n 1 “systemctl is-active
How to see what’s running on a port in Linux
user@hostname ~ $ sudo lsof -i -P -n | grep LISTEN | grep 1025 mailcatch 1104 root 9u IPv4 27240 0t0
Linux Disk Space File System Management Commands
Introduction Here are some commands to assist with mastering disks and file space management on Linux. TL;DR ncdu is my preferred option. Disk Usage by
How to set up a fault tolerant / failover system on Linux
Problem: You need to make sure that your disks are 100% redundant. Solution: A popular way on Linux to do this is DRBD. Here are
Two good configuration files for DRBD and OCFS2
Problem: You need to know if your DRBD and OCFS2 disk fault tolerance has been setup correctly but the configuration options are overwhelming. Solution: See
How to set the timezone in Linux and other useful time and locale commands
To set the timezone in Debian/Ubuntu or a Red Hat derivative, here are some examples: timedatectl set-timezone Europe/Berlin timedatectl set-timezone Europe/London timedatectl set-timezone America/Los_Angeles timedatectl