Linux

Automatically Launch Applications at Startup on Linux Using Desktop Entries

A step-by-step guide on how to configure your Linux system to automatically launch applications like Firefox, VS Code, and Terminal upon login by creating simple `.desktop` files.

How to Install Fonts on RHEL via the Command Line

A step-by-step guide on installing fonts for a single user or system-wide on Red Hat Enterprise Linux (RHEL) and other RPM-based systems using the command line.

How to Generate Secure Random Passwords from the Linux CLI

A step-by-step guide to creating secure, random alphanumeric passwords with special characters directly from the Linux command line using /dev/urandom, tr, and head.

How to Check the Default Application for a MIME Type on Linux

A guide on using the xdg-mime command-line utility to query the current default application for a specific file type (MIME type) on Linux desktop

Union File System in Container Technology

Union File System Basics

Understanding Subnetting

How to Calculate a Network Address.

Multiple Ethernet Cards

Why servers have multiple NICs?

Performing a Bitwise AND Operation

Bitwise Operattion

Sudoers file

Setting user privileges using sudoers file

Operating System Design Philosophies

Different types of operating systems and their design philosophies.