In this category, you can see all articles related to Unix or Linux operating System.
Networking & Firewall (Ss/Netstat/Iptables/Nftables/Curl) Stop your port scans from getting lost in the noise 🧩 The Challenge Dealing with connections that just hang indefinitely is enough to drive anyone up...
Logging & Journald Stop journalctl from hiding those tiny logs you need right now 🧩 The Challenge Trying to debug a service that logs a million lines per second makes...
Virtualization (KVM/QEMU/Libvirt) Stop QEMU from hanging your host when disk I/O gets backed up Technical Briefing | 8/11/2026 We have all been there. A guest VM running a heavy database...
Cron & Task Scheduling (Cron/Systemd Timers/At) Stop cron from sending you garbage emails you never asked for 🧩 The Challenge Setting up a quick cron job is easy, but then...
Performance Tuning & Kernel Parameters (Sysctl) Stop your Linux box from being a terrible neighbor on the network 🧩 The Challenge Dealing with a server that suddenly stops responding because...
Backup, Snapshotting & Disaster Recovery Stop your LVM snapshots from killing your disk performance Technical Briefing | 8/10/2026 You probably set up LVM snapshots years ago because they sounded like...
Backup & Recovery (Rsync/Tar/Dd) Stop rsync from deleting the destination files you actually wanted to keep 🧩 The Challenge You finally set up that automated backup job, but then you...
Environment & Shell Customization (Aliases/Functions/.Bashrc) Stop your path variable from becoming a dumpster fire 🧩 The Challenge Every time I install some half-baked tool that appends its own bin directory...
DevOps Tooling On Linux (CI/CD Runners, Ansible) Stop Ansible from leaking your credentials into the system log Technical Briefing | 8/10/2026 You spend all morning refining your Ansible playbooks, ensuring...
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...