DevOps

Introduction CentOS, or Community ENTerprise Operating System, is a Linux distribution that provides a free, enterprise-class computing platform. It is functionally compatible with its upstream source, Red Hat Enterprise Linux (RHEL).......

Introduction Systemd is a system and service manager for Linux operating systems that introduces the concept of systemd units to manage different resources of the system. Creating a custom systemd service in Ubuntu enables users to......

Introduction Managing tasks on a server is an essential skill for any system administrator or developer. One of the most powerful and commonly used tools for task automation on UNIX and Linux-based systems is cron. Whether you’re......

Introduction Nothing is as frustrating as a slow boot time when you want to get started with your work or tasks on Ubuntu. This guide aims to provide a step-by-step tutorial on how to diagnose and fix slow boot times on your Ubuntu......

Introduction As a Linux administrator or user, you may need to ensure that certain services automatically start up every time your system boots. This could be a web server, a database service, or any custom application that you need to......

Introduction Managing permissions is a fundamental aspect when working with Linux-based systems like Ubuntu. Permissions determine what actions users and groups can perform on files and directories. In this tutorial, we’re going......

Overview Linux servers like Ubuntu often need to be secured with a firewall. Ubuntu comes with a firewall configuration tool called UFW – Uncomplicated Firewall. UFW is a user-friendly interface to the core iptables firewall,......

Introduction Managing network ports is a fundamental aspect of securing a Linux server. In Ubuntu, the Uncomplicated Firewall (UFW) provides a user-friendly way to configure your firewall settings. This tutorial walks you through the......

When working with Ubuntu, one of the fundamental tasks you’ll undertake is managing users and their privileges. Specifically, it’s often necessary to create a user with sudo privileges for tasks that require superuser access.......

Ubuntu, like other Linux distributions, is known for its robust security model, which is significantly bolstered by the use of passwords for user accounts, including the root account. Despite security advice against routinely using the......

Introduction In the world of software development and network administration on Ubuntu or any UNIX-like system, working with network ports is a common task. Alternatively, processes may start and stop unexpectedly, leaving certain......

Introduction Understanding file links is fundamental for effective file management and data organization in Linux. Soft and hard links are two types of shortcuts to files that serve different purposes and exhibit distinct behaviors.......