Don’t let the OOM killer pick your most important pod
Container & Kubernetes Internals Don’t let the OOM killer pick your most important pod Technical Briefing | 9/22/2026 You spend weeks tuning your heap size and optimizing your queries, but...
Category: Linux/Unix
In this category, you can see all articles related to Unix or Linux operating System.
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Stop users from lingering in a group you just booted them from
User & Group Management Stop users from lingering in a group you just booted them from 🧩 The Challenge You finally drag that one dev out of the sudoers group,...
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Stop journald from eating all your disk space
Logging & Journald Stop journald from eating all your disk space 🧩 The Challenge Dealing with a server that suddenly hits 100 percent disk usage is a nightmare, especially when...
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Stop guessing why your script is hitting permission denied
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Stop guessing why your script is hitting permission denied 🧩 The Challenge You know the file has the right octal bits, but the application still throws...
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Stop backing up the junk your logs leave behind
Backup & Recovery (Rsync/Tar/Dd) Stop backing up the junk your logs leave behind 🧩 The Challenge Everyone has that one backup script that bloats to terabytes because it blindly hits...
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Stop letting your container processes run wild on the CPU
Container Basics On Linux (Namespaces/Cgroups) Stop letting your container processes run wild on the CPU 🧩 The Challenge You know that feeling when one misbehaving container starts eating all your...
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Add a port forward to a live SSH session
SSH & Remote Administration Add a port forward to a live SSH session 🧩 The Challenge You’re already deep into a remote server, maybe a jump box or a production...
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Stop lying to your LVM thin pools about how much space is left
Filesystem & Storage (ZFS/Btrfs/LVM) Stop lying to your LVM thin pools about how much space is left Technical Briefing | 9/21/2026 You set up a thin pool, allocated a massive...
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Find out why your disk is full even when the files are gone
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Find out why your disk is full even when the files are gone 🧩 The Challenge You stare at your df -h output and it...
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Stop polluting your shell history with repetitive junk
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop polluting your shell history with repetitive junk 🧩 The Challenge You know that feeling when you press the up arrow and have to scroll...