How to use the Linux ping command: main usage ways and tips
The Linux ping command is a tool for diagnosing connectivity issues, monitoring network performance, and checking server availability. It is...
How to set up passwordless SSH on Linux
Due to its reliability and security, the secure socket shell (SSH) is the most common way to interact with a remote server. However, using this...
How to kill a process in Linux from the command line
In Linux, managing running processes can help maintain system health and performance. Sometimes, you might need to terminate a process to free up...
How to use the Linux dig command
The dig command, short for domain information groper, is a powerful network tool for querying domain name system (DNS) servers. It helps diagnose and...
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 2026
As a server administrator, understanding how to list software packages installed in an Ubuntu system is crucial. It is useful for various tasks, such...