Stop pgrep from lying to you about process arguments
Process & Resource Monitoring (Top/Htop/Ps/Systemd) Stop pgrep from lying to you about process arguments 🧩 The Challenge Trying to hunt down a specific runaway script using pgrep often pulls up...
Category: Linux/Unix
In this category, you can see all articles related to Unix or Linux operating System.
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Stop your firewall from leaking interface metadata via raw packet captures
Networking & Firewalls (Nftables/Iptables/WireGuard) Stop your firewall from leaking interface metadata via raw packet captures Technical Briefing | 8/4/2026 You spend all weekend hardening your nftables ruleset, strictly isolating your...
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Stop useradd from ignoring your system-wide password aging defaults
User & Group Management Stop useradd from ignoring your system-wide password aging defaults 🧩 The Challenge Setting up a batch of service accounts only to realize they have no password...
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Stop SSH from hanging forever when the network drops
SSH & Remote Administration Stop SSH from hanging forever when the network drops 🧩 The Challenge You know that feeling when your laptop goes to sleep or the Wi-Fi blips...
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Stop your nested subshells from swallowing your exit codes
Shell Scripting / Bash Tricks Stop your nested subshells from swallowing your exit codes 🧩 The Challenge You ever write a pipeline like if [ $(grep “error” logfile | wc...
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Stop ZFS from eating your entire pool when you enable dedup
Filesystem & Storage (ZFS/Btrfs/LVM) Stop ZFS from eating your entire pool when you enable dedup Technical Briefing | 8/4/2026 You see a massive pile of identical virtual machine images or...
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Stop your Linux box from being a file descriptor hoarder
Performance Tuning & Kernel Parameters (Sysctl) Stop your Linux box from being a file descriptor hoarder 🧩 The Challenge You’ve likely seen those dreaded “too many open files” errors pop...
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Stop cgroups from trapping your runaway processes
Container Basics On Linux (Namespaces/Cgroups) Stop cgroups from trapping your runaway processes 🧩 The Challenge Dealing with a Java service that keeps leaking memory and spawning child processes is a...
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Stop rsync from nuking your destination folder when the source path gets a trailing slash
Backup & Recovery (Rsync/Tar/Dd) Stop rsync from nuking your destination folder when the source path gets a trailing slash 🧩 The Challenge Everyone has done this at least once: you...
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Stop your inherited group ownership from breaking shared folders
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Stop your inherited group ownership from breaking shared folders 🧩 The Challenge You ever set up a shared directory for a dev team, only to have...