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How to Find Out About a System and its Hardware

Simple commands to show details about your system, from PCI to Video to CPU.

May 14, 2019 · 2 min · Matt Bagley · Updated Jun 28, 2023
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How to Change a File's Date and Time

Here we show ways to change a file’s time and date, even to impossible dates

November 17, 2016 · 3 min · Matt Bagley
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Show System Stats after Login to Shell

Here’s a great way to show system stats after you login, such as last login, uptime, load, memory, disk usage, and the weather, and if there’s an issue.

October 18, 2016 · 7 min · Matt Bagley · Updated May 9, 2017
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Making and Running Cronjobs in Systemd

Ever need to make cronjobs under systemd? Here’s how to do so easily, with and without timer and service files.

October 8, 2016 · 2 min · Matt Bagley
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Using Magic SysRq to Safely Reboot a Locked Linux Machine

Sometimes your linux machine locks up, and you need to reboot it. Here’s a safe way to do so using the Magic SysRq

December 2, 2015 · 3 min · Matt Bagley · Updated Sep 27, 2016
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Kernel Panics and Lockups

Kernel panics and lockups happen for various reasons, from bad hardware to kernel bugs to over heating, to cosmic rays. Here’s how to keep your machine running.

November 26, 2015 · 4 min · Matt Bagley · Updated Sep 27, 2016
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Using Watchdog to Always Keep a Machine Running

Watchdog monitors the health of a machine. If something goes really wrong, it can safely reboot the machine, allowing your service to keep on going rather than wait for someone to come kick it.

November 26, 2015 · 8 min · Matt Bagley · Updated May 15, 2019
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How to Kill Zombie Processes with Zombie Slayer

When an infamous zombie process strikes, here’s how to kill it without having to reboot the machine.

April 27, 2015 · 4 min · Matt Bagley
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Force checking the file system

When the system starts throwing errors about the filesystem, you want to force check it on the next boot. Here’s how to do it in Systemd and SysVinit.

January 9, 2015 · 2 min · Matt Bagley
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Create an Encrypted Swap File or Device

Did you know that your swap can contain sensitive information? Here’s some ways to encrypt it to keep it from falling into the wrong hands.

September 26, 2008 · 7 min · Matt Bagley · Updated Oct 20, 2020