IT Security In Plain English

Understanding QR Code Phishing (QRishing)

QR codes, or Quick Response codes, have become ubiquitous in our daily lives, providing…

Unmasking the Undead: Understanding and Eliminating Zombie Processes in Linux

How to Install and Validate Let’s Encrypt SSL on Any Linux Server Using Nginx, Including Auto Renewals

My Experience with CVE-2024–3094 and the xz vulnerability checker & fixer scripts

Optimizing Linux Like a Pro: The SysAdmin’s Guide to sysctl

Mastering Text Processing with AWK

Text processing is a critical skill in the Unix/Linux ecosystem, serving a broad range of…

DNS Records Explained: A Beginner’s Guide to Internet Routing

Understanding Linux Permissions: A Guide to umask, chmod, and setfacl

Guarding Against Juice Jacking: How to Secure Your Devices in Public Spaces