In this category, you can see all articles related to Unix or Linux operating System.
Container Basics On Linux (Namespaces/Cgroups) Escape the host and see your container memory usage from the outside 🧩 The Challenge You’ve got a container that’s OOM-killing everything in sight, but...
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Catch the hidden space thieves with lsof 🧩 The Challenge Ever run df -h and see a disk is 100% full, but when you go...
Performance Tuning & Kernel Parameters (Sysctl) Stop your TCP stack from choking on window scaling 🧩 The Challenge Dealing with high-latency connections where your transfers crawl even though the bandwidth...
Kernel News & Module Management Stop Letting Tainted Kernels Hide Their Shame Technical Briefing | 10/18/2026 You see a kernel panic or an odd driver hiccup and your first instinct...
Process & Resource Monitoring (Top/Htop/Ps/Systemd) Stop letting processes ghost your system resources 🧩 The Challenge Everyone has dealt with a runaway script that eats RAM until the OOM killer nukes...
Cloud-Native Linux (Cloud-Init, Immutable OS, Bootc) Stop fighting the base image and start layering your own bits with bootc Technical Briefing | 10/18/2026 For years we have been building servers...
Text Processing (Grep/Sed/Awk) Stop killing your regex by escaping every single character 🧩 The Challenge Dealing with a massive config file or a bunch of JSON blobs and suddenly you...
Container Basics On Linux (Namespaces/Cgroups) See what your container is actually hiding from the host 🧩 The Challenge You ever try to kill a zombie process inside a container from...
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop wondering which process is burning your ports 🧩 The Challenge You know that feeling when you try to start a service, but it immediately faceplants...
Security Hardening (SELinux/AppArmor/Auditd) Stop leaving your auditd rules wide open to log rotation gaps Technical Briefing | 10/18/2026 You probably spent an afternoon tuning your auditd rules to capture every...