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, […]
Ten major differences between RHEL8 and RHEL9
Discover the major differences between RHEL 8 and RHEL 9 and review the latest version’s enhancements in performance, security, and containerization support. RHEL 9 introduces significant improvements, making it an exciting and compelling choice for Linux professionals aiming to stay current with the latest features and capabilities. Table of Contents Introduction Red Hat Enterprise Linux […]
Change IPv4 Addresses using the NMCLI Utility
Discover the convenient and efficient way to change IPv4 addresses on your Linux machine using the nmcli utility, and take control of your network settings with ease. Table of Contents Introduction Changing IPv4 addresses using the nmcli utility is a useful way to manage network connections on a Linux system. Here’s a step-by-step guide on […]
Install and Use PostgreSQL on CentOS8
Learn about installing and using PostgreSQL on CentOS 8 with this step-by-step guide and take your data management to the next level! Table of Contents Introduction PostgreSQL is an open-source, object-relational database system that provides robust data management and secure data storage. It was first released in 1989 and has since then been developed by […]
Installing and using NTP server on CentOS8
In this article, we will review network time protocol (NTP) installation and configuration on a CentOS8 or RHEL8 operating system. As part of this process, we will focus on both the server-side and client-side setups for NTP. Table of Contents Introduction Although chronyd has replaced ntpd as the default time service on RHEL8 and CentOS8 […]
Installing and using IPA server on CentOS8
Discover how to easily set up and manage a secure and centralized authentication system using a FreeIPA server on CentOS 8. Table of Contents Introduction Identity Management or IdM is an essential component in any organization’s IT infrastructure. It is the process of identifying, authenticating, and authorizing users and their access to resources within a […]
Change DNS Settings using the NMCLI utility
In this article, we will review how to change DNS settings using nmcli. In RHEL7 and CentOS7, modifying the ifcfg scripts or /etc/resolv.conf files directly won’t work as they are overwritten by the NetworkManager. Table of Contents Introduction The nmcli command-line (CLI) tool is used for controlling the NetworkManager. It not only displays the network […]
Install Ubuntu 20.04 Server on KVM
In this tutorial, we will review the installation procedure for standing up an Ubuntu 20.04 server on KVM. We will focus specifically, on version 20.04 of the OS. However, these instructions will work for installing older or newer versions of the Ubuntu OS provided you have access to the .iso file. Having said that, it […]
Install brackets on CentOS8
In this article, we will review how to install brackets on CentOS8. This will follow a similar procedure we covered in our previous post: Install Brackets on Ubuntu 20.04. Table of Contents Introduction Brackets was developed by Adobe and first released in 2014. It is one of many text editors used by developers for coding […]