Shell Scripts: Don’t Let Your Temp Files Become a Mess (or a Danger)
Shell Scripting & Automation Shell Scripts: Don’t Let Your Temp Files Become a Mess (or a Danger) Technical Briefing | 9/18/2026 Every sysadmin has written a script that needs a...
Tag: linux
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Stop fighting drift and start treating your OS like a container image
Cloud-Native Linux (Cloud-Init, Immutable OS, Bootc) Stop fighting drift and start treating your OS like a container image Technical Briefing | 9/18/2026 Most of us spent a decade babysitting configuration...
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Stop setting SELinux to Permissive just because you are annoyed
Security Hardening (SELinux/AppArmor/Auditd) Stop setting SELinux to Permissive just because you are annoyed Technical Briefing | 9/17/2026 We have all been there. You deploy a custom application, the service fails...
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Stop getting burned by the shell script set -e trap
Shell Scripting & Automation Stop getting burned by the shell script set -e trap Technical Briefing | 9/17/2026 Every sysadmin eventually learns to start their scripts with set -e to...
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Stop fighting the package manager when your metadata cache goes rogue
Package Management & Distro Internals (Apt/Dnf/Pacman) Stop fighting the package manager when your metadata cache goes rogue Technical Briefing | 9/17/2026 We have all been there. You run an update,...
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Stop getting burned by globbing characters in your automated filenames
Shell Scripting & Automation Stop getting burned by globbing characters in your automated filenames Technical Briefing | 9/16/2026 We have all been there. You write a script to sweep up...
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When your WireGuard peers talk but your traffic just vanishes
Networking & Firewalls (Nftables/Iptables/WireGuard) When your WireGuard peers talk but your traffic just vanishes Technical Briefing | 9/16/2026 You setup WireGuard, the handshake completes, and wg show confirms the peer...
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Ever try to revoke SSH access across a thousand servers? It sucks. Here’s a better way.
SSH, Remote Access & Zero Trust On Linux Ever try to revoke SSH access across a thousand servers? It sucks. Here’s a better way. Technical Briefing | 9/16/2026 Remember that...
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When Your ‘Beefy’ Server is a Secret Slug: Exposing NUMA Traps
Performance Monitoring & Tuning When Your ‘Beefy’ Server is a Secret Slug: Exposing NUMA Traps Technical Briefing | 9/15/2026 You’ve just racked a beast of a server – multiple sockets,...
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Systemd Socket Activation: Getting Your Services to Wait For You
Systemd & Service Management Systemd Socket Activation: Getting Your Services to Wait For You Technical Briefing | 9/15/2026 We all know systemd is a massive change from SysVinit, but one...