In this category, you can see all articles related to Unix or Linux operating System.
Container Basics On Linux (Namespaces/Cgroups) Stop losing track of which namespace your processes are hiding in 🧩 The Challenge You ever dive into a containerized mess and realize you have...
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Stop du from lying to you about the size of your directory trees 🧩 The Challenge Ever run du -sh and gotten a total that...
SSH & Remote Administration Stop your SSH session from freezing when your laptop goes to sleep 🧩 The Challenge You know that feeling when you close your laptop lid on...
Text Processing (Grep/Sed/Awk) Stop awk from treating empty fields like they are missing 🧩 The Challenge You are parsing a CSV export or a log where some values are blank,...
Observability & Logging (Journald, EBPF Tracing) Stop eBPF from hiding the silent killers in your syscalls Technical Briefing | 8/10/2026 You probably think your logs tell the whole story. I...
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop iptables from hiding your dropped packets 🧩 The Challenge Dealing with a service that refuses to connect, but the firewall logs are totally silent because...
Container Basics On Linux (Namespaces/Cgroups) Stop unshare from leaving your processes stranded in the wrong namespace 🧩 The Challenge Every time I try to test process isolation with unshare, I...
Disk & Filesystem Management (Du/Df/Lsblk/Fstrim) Stop df from lying to you about hidden file usage 🧩 The Challenge Ever stared at a disk that df claims is 90% full, but...
Permissions & Security (Chmod/Chown/ACLs/SELinux/AppArmor) Stop your files from ignoring the group bit when folks copy them around 🧩 The Challenge Dealing with shared project directories is a nightmare when every...
Shell Scripting & Automation Stop your subshells from swallowing exit codes when you pipe them Technical Briefing | 8/10/2026 You spend all morning writing a robust pipeline, chaining commands with...