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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

New Update: We have published the full RHCSA & RHCE Certification courses at our premium membership site. If you’re looking

Most sysadmins only use cat to dump a file and tail -f to watch logs. That leaves a lot of

Linux command line has a lot of fun around itself and many tedious task can be performed very easily yet

Linux has long been the operating system of choice for servers, databases, containers, and cloud workloads. For some time, it

frp is a fast reverse proxy written in Go that lets a machine behind NAT accept internet traffic through a

Telnet is missing from almost every modern Linux install, but you can still test TCP or UDP ports with nc,

Kubescape is a CNCF security scanner that checks your Kubernetes manifests, container images, and live cluster. It scores them against

makerskills is an open-source pack of AI agent skills for Claude Code. This walkthrough covers how to install it on

Rio is a GPU-accelerated terminal emulator written in Rust that gives you built-in tabs, splits, and a command palette. So

Hyperswitch is an open-source payments switch from Juspay that you can run on your own Linux server. This guide covers

You’ve probably memorized networking definitions like “What is DNS?” or “What is a subnet?” for interviews. But real interviews often

Much of the MySQL interview prep you’ll find online is based on outdated versions that reached end-of-life years ago. If

You’ve probably run df -h, waited a few seconds, and run it again while a file copy or backup was