SysAdmin

This guide explains how to install and secure a phpMyAdmin instance on Ubuntu 20.04 and 22.04.

Vagrant is a software application that creates an operating system environment using virtualization technology. Vagrant uses a command line interface to load, prepare, and launch a virtual environment, called a Vagrant Box. There are many preconfigured Vagrant boxes available for download. You can also start with a basic box and add your own configuration. This guide will walk you thru how to install Vagrant on Ubuntu 18.04 (Bionic Beaver).

This article explores the basic principles of system calls, delves into their functions and features, and provides a list of common system calls in UNIX and Windows.

Overwriting a local Git branch with a remote one is useful when you need to synchronize the changes with the remote repo. This tutorial shows two different methods for overwriting a local branch in Git.

This article explains the concept of swap space in Linux, what it is and how it works. Learn how to utilize swap space to boost your system performance and avoid degradation caused by improper use.

Introduction The redirections and file descriptors are essential when working with the command-line interface. Knowing how I/O streams work helps you understand redirections even better. In this article, you'll learn how to redirect stdout/stderr to a file in Bash. Standard I/O Streams When a command executes in Bash and other Linux shells, it uses three standard […]

Swap memory is a part of a computer's hard drive the operating system uses to store inactive data from RAM. This allows the OS to run even when RAM is full.
This article explains what swap memory is and how it works.

Linux distributions provide users with a wide range of options, from beginner-friendly operating systems to complex, use-case oriented designs. This article compares Kali Linux and Ubuntu, two popular distros that cater to vastly different use cases.

This article is a comprehensive list of the most important Bash commands every user should know. Download a PDF cheat sheet and save the commands for future reference.

This article explains sysctl command syntax and options and provides practical code examples.