How to use tmux for terminal multitasking
A terminal multiplexer, or tmux, is a command-line tool that lets you manage multiple terminal sessions in a single window. With tmux, you can split...
How to Install and Set Up Ubuntu Mail Server
Having your own email server is a great idea for any medium-sized company. With this, all the traffic is controlled, and we can define the rules...
How to change hostname on CentOS 9 Stream: 3 simple methods explained
Managing multiple servers may be challenging, which is where hostnames can prove to be useful.Hostnames enable users to name their servers and...
How to change a hostname in Linux
A Linux hostname identifies systems within a network, enabling them to identify and communicate with one another correctly. Assigning a unique...
How to List Installed Packages on Ubuntu 2025
As a server administrator, understanding how to list software packages installed in an Ubuntu system is crucial. It is useful for various tasks, such...
How to use the bash for loop: Syntax and examples
A Bash for loop is a statement in the Bash programming language that allows a code or script to run repeatedly. It enables you to finish repetitive...
How to check your Ubuntu version using GUI, terminal and Hostinger VPS panel
Checking your system’s Ubuntu version is crucial to ensure compatibility before installing software or deploying an application. It also helps...
How to use the Linux cat command
The cat command is one of the most useful commands in Linux – it is used for displaying, combining, and manipulating text files.Its versatility...
How to use the grep command in Linux + examples
The Global Regular Expression Print or grep command searches specific lines containing a particular pattern in a file. It is useful for quickly...