How to Check If a Linux User or Group Exists — with Examples and How to Delete Them Safely
Managing users and groups is a key part of Linux system administration. Whether you’re cleaning up old accounts or auditing…
How to Run Multiple PHP Versions on IIS 10 with FastCGI (PHP 8.1 to 8.4)
Introduction Running multiple PHP versions (e.g., 8.1 to 8.4) side-by-side on IIS 10 allows web admins to host different applications…
Pahalgam Attack and the Cancer of Terrorism from Pakistan
On 22 April 2025, a terrorist attack at Baisaran Valley near Pahalgam in the Anantnag district of Jammu and Kashmir,…
A Comprehensive Guide to IANA Certified Ports and Their Usage
🔎 Introduction: In today’s interconnected world, port numbers are essential for directing network traffic to the right applications. The Internet…
Fixing Dovecot Indexing and Mailbox Date Issues: A Complete Guide for Sysadmins
When manually uploading or restoring emails into a Dovecot-managed mailbox, you may encounter two common issues: This guide explains how…
Understanding PIE vs. CoDel Queue Management
Introduction As a system administrator, network performance is a crucial aspect of maintaining a reliable and efficient infrastructure. One of…