Ebook: Introducing LFCS Certification Preparation eBook
New Update: We have published the full LFCS Certification Course (34 chapters) at our premium membership site. For years, certifications
Boost Your Career with RHCSA & RHCE Certification eBooks
New Update: We have published the full RHCSA & RHCE Certification courses at our premium membership site. If you’re looking
Codex CLI: Use OpenAI’s AI Coding Agent in the Linux Terminal
Codex CLI is OpenAI’s coding agent that runs in your terminal, reads your files, and executes shell commands on your
20 DNF Commands Every Linux Administrator Should Know
Most people treat dnf as a drop-in replacement for yum and stop there. But that misses a lot of what
12 Ways to Use the dmesg Command in Linux to View and Troubleshoot Kernel Messages
Most people run dmesg once, see thousands of lines, and close the terminal. But that’s not really how you should
View and Manage Files using head, tail and cat Commands in Linux
Most sysadmins only use cat to dump a file and tail -f to watch logs. That leaves a lot of
16 Fun Linux One-Liners Every Command-Line User Should Try
Linux command line has a lot of fun around itself and many tedious task can be performed very easily yet
How to Manage Vulnerabilities Across Multiple Linux Distributions
Linux has long been the operating system of choice for servers, databases, containers, and cloud workloads. For some time, it
frp: Access Local Services Behind NAT Without Port Forwarding
frp is a fast reverse proxy written in Go that lets a machine behind NAT accept internet traffic through a
5 Ways to Test TCP and UDP Ports in Linux Using nc, nmap, ss, and Bash
Telnet is missing from almost every modern Linux install, but you can still test TCP or UDP ports with nc,
Kubescape: Kubernetes Security Scanning for Manifests, Images, and Clusters
Kubescape is a CNCF security scanner that checks your Kubernetes manifests, container images, and live cluster. It scores them against
MakerSkills: Add AI Agent Skills to Claude Code on Linux
makerskills is an open-source pack of AI agent skills for Claude Code. This walkthrough covers how to install it on
Rio Terminal for Linux: Speed Up Your Command-Line Workflow
Rio is a GPU-accelerated terminal emulator written in Rust that gives you built-in tabs, splits, and a command palette. So
Hyperswitch on Linux: A Self-Hosted Payment Switch for Multiple Processors
Hyperswitch is an open-source payments switch from Juspay that you can run on your own Linux server. This guide covers