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…
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…
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…
Benchmaxxing: When the Benchmark Becomes the Target
The headlining failure of most cyber-relevant AI benchmarks is that they fail to measure what matters…
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…
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…
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…
August 2026 Patch Tuesday: One Exploited Zero-Day and 62 Critical Vulnerabilities Among 415 CVEs
Exploited Zero-Day Vulnerability in Windows Ancillary Function Driver for WinSock CVE-2026-63518, CVE-2026-63525, and CVE-2026-64907 are Critical…
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…
VCF – Workload Domain Stuck Deleting After Reimaging Hosts
August 10, 2026 VCF – Workload Domain Stuck Deleting After Reimaging Hosts VCF Workload Domain Stuck…
CrowdStrike Threat Hunts for Shell Command Obfuscation on VMware ESX
Using CrowdStrike Falcon® Next-Gen SIEM, these patterns can be deployed as correlation rules across ESX shell…
15 Advanced MySQL Database Interview Questions and Answers
Much of the MySQL interview prep you’ll find online is based on outdated versions that reached…
How to Use the watch Command in Linux to Monitor Commands in Real Time
You’ve probably run df -h, waited a few seconds, and run it again while a file…
15 Bash (!) Operator Examples Every Linux User Should Know
Most Linux users come across the ! symbol in only two situations: when they learn the…
15 Linux Interview Questions and Answers for System Administrators
Most Linux interview lists recycle the same 10 questions from a decade ago, and many of…