RHCSA9 Exam Series: Manage Users and Groups
In this article, we will review a scenario that may appear on the RHCSA9 exam. The RHCSA9 exam series articles are designed to increase your knowledge, skills, and confidence regarding the exam. However, practice makes perfect so, practice…practice…practice!! Table of Contents Introduction Before we begin, this article assumes that you already have running instances of […]
RHCSA9 Exam Series: Understand and use essential tools
In this section of the RHCSA9 Exam Series: Understand and use essential tools, we will examine some of the essential tools that may appear on the RHCSA9 exam and review different ways to accomplish administrative tasks within RHEL9 operating system (OS). Some of the commands we will review in this lab include: mkdir rmdir rm […]
How to Configure Chrony on RHEL9
In this article, we will review how to configure Chrony on RHEL9 using chrony. We will focus on the server-side setup and finish with the client-side setup. Table of Contents Introduction Before we begin, this article assumes that you already have running instances of RHEL9 or CentOS9 available. If not, you may reference the following […]
Enable TLS1.2 on Cockpit Server
Your security team has just informed you that TLS Version 1.1 Protocol Deprecated (157288) was found on your cockpit server on port 9090. What do you do? In this article, we will explore how to mitigate this Tenable finding. Table of Contents Introduction In today’s world, securing our online communication and protecting sensitive information has […]
Install SSL Certificates on Cockpit
Are you looking to secure your Cockpit server and protect sensitive data? Follow these steps to Install SSL Certificates on Cockpit and protect your server infrastructure. Table of Contents Introduction Cockpit is a popular open-source web-based interface for managing Linux systems. It is designed to make Linux system administration tasks easy and user-friendly. Cockpit was […]
Creating Snapshots in KVM
In this article, we will review the process for creating snapshots in KVM. As part of this process, we will learn how to script this procedure using bash. Table of Contents Introduction KVM (Kernel-based Virtual Machine) is a virtualization solution that allows users to create and manage virtual machines on a Linux host. One of […]
Install MariaDB on CentOS7
In this step-by-step guide, we will show you how to install mariaDB on CentOS7. MariaDB is a fork of MySQL relational database management systems (RDBMS). Table of Contents Introduction MariaDB originated from the apprehensions of the initial developers that Oracle might acquire it in 2009. It was crafted with a focus on upholding compatibility with MySQL, […]
Write a play that checks for the timezone of a system and outputs the results to a file
In this article, we will review how we can automate a task that checks the timezone using Ansible, offering a detailed walkthrough of the steps involved in automating the verification and configuration of time zones across target machines. Table of Contents Introduction Welcome to our latest blog post, where we delve into the world of […]
Scientific computing examples using Python
Scientific computing using Python refers to the use of the Python programming language and its associated libraries to solve scientific problems. Scientific computing is the application of computer algorithms and numerical methods to solve scientific problems. It involves using mathematical models and simulations to analyze and interpret data in fields such as physics, engineering, biology, […]
Install Jenkins on RHEL9 or CentOS9
Are you tired of manually building, testing, and deploying your software? Learn how to install Jenkins on RHEL9 or CentOS9 and automate your software development processes to increase productivity and reduce time to market. Table of Contents Introduction Jenkins is a popular open-source automation server that helps to automate software development processes like building, testing, […]