linux sysadmin

linux sysadmin

How to Check Listening Ports in Linux: The Security Command You Need to Know

Robert Johnson

Learn how to check listening ports in Linux using ss, netstat, and lsof. Master port monitoring for security and troubleshooting in 2025.

How to Check Linux Version: The Command Every Sysadmin Needs

Robert Johnson

Learn how to check Linux version and distribution using hostnamectl, /etc/os-release, and uname commands. Complete guide with practical examples for 2025.