NTP (Network Time Protocol) is a protocol that runs over port 123 UDP at the transport layer and allows computers to synchronize time over networks for an accurate system time. While time passes by, the…
Efficiently managing running processes is a crucial aspect of Linux system administration, enabling administrators to maintain system performance and troubleshoot issues by finding and terminating processes in a Linux environment. This article explores the ins…
The ‘timedatectl‘ command is a new utility for RHEL-based and Debian-based distributions. It is a part of the ‘systemd‘ system and service manager, serving as a replacement for the old traditional date command used in…
Backup on personal computers or servers is always important to prevent permanent data loss. Therefore getting to know different backup tools is very important, especially for System Administrators who work with large amounts of enterprise-level…
Linux system administration involves many activities one of which is monitoring and checking for how long your system has been running. It is always a good idea to keep track of system uptime in order…
A cluster is a collection of two or more nodes that offers an avenue for moving around resources between servers. Migrating resources make it possible to undertake tasks such as upgrading servers and applying patches…
The earlier articles in the ‘Shell Scripting‘ series received great feedback, so I’m writing this article to keep the learning journey going. Bash Keywords Bash keywords refer to specific words or commands used in the…
Linux shell scripting is the art of writing small programs (scripts) to automate tasks in the command-line interface, which involves using commands, variables, loops, and conditionals to create efficient and automated workflows. This article is…
The Linux shell, or command-line interface, is a powerful program that enables users to interact with the operating system via text-based commands. Understanding the basics of the Linux shell and shell scripting can greatly enhance…
So, are you planning to switch from Windows to Linux or have you recently made the switch to Linux? Oops! What am I asking? Why else would you be here? In my earlier experience as…
If you’ve ever used Debian or Debian-based distributions like Ubuntu or Linux Mint, then chances are that you’ve used the apt package system to install or remove software. Even if you’ve never dabbled in the command…
Have you ever been confronted with the task of looking for a particular string or pattern in a file, yet have no idea where to start looking? Well then, here is the grep command to…
In my previous article, we learned the installation of Shorewall, configuration file setup, and the configuration of port forwarding over NAT. In this article, we will delve into common errors associated with Shorewall, provide solutions,…
Setting up a firewall in Linux can be very daunting for a newbie, or someone not very familiar with iptables. Luckily, there is a very easy-to-use solution in Shorewall. In this multi-part tutorial, I am…
Brief: This tutorial examines some of the best free and open-source school management software for Linux. Running an educational institution in an efficient manner is no mean task. It usually involves handling various aspects such…