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 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 […]
Install Kubernetes Cluster on CentOS8
In this tutorial, we will review the Kubernetes cluster install on CentOS8. This procedure will mirror our previous article about this subject. Install a Kubernetes Cluster on Ubuntu 20.04 Also, this procedure will work for setting up a Kubernetes Cluster on CentOS7 or CentOS9. Table of Contents Introduction Kubernetes is an open-source container orchestration platform […]
Install a Kubernetes Cluster on Ubuntu 20.04
In today’s article, we will review the step-by-step process involved with a Kubernetes cluster install on Ubuntu server version 20.04. However, this procedure will work with later version of Ubuntu (e.g Ubuntu 22.04 or later). Table of Contents Introduction The overall steps for installing a Kubernetes cluster on Ubuntu are very similar to those for […]
Install brackets on Ubuntu 20.04
In today’s article, we will review how to install brackets on Ubuntu 20.04. Brackets is a modern text editor that makes designing easy from a web browser. Table of Contents Introduction Brackets Code Editor was developed by Adobe and first released in 2014. It is one of many text editors used by developers for coding […]
Create and Export an NFS Server in Linux
NFS or Network File System is a commonly known method for network file sharing on Linux hosts. We will create and export an NFS server. Table of Contents Introduction In this article, we will create and export an NFS server in Linux using two CentOS7 virtual machines (VMs) to represent the client and the server. […]
Basic mkdir command examples in Linux
In this article, we’ll cover the mkdir command, which stands for make directories, and review basic mkdir command examples. Table of Contents Introduction David Mackenzie authored the mkdir command found in the GNU coreutils package, as documented in the Linux Manual pages. This command, originating in the 1970s, has become ubiquitous across various operating systems, […]
Write a play automating changes to the SSHD Configuration file
In today’s Ansible series, we will learn about automating changes using Ansible. Specifically, we will automate changes to the sshd config file. Table of Contents Introduction In this exercise, we will examine a playbook that automates a config change (resolves common SSH vulnerabilities) and …specifically makes a change to the sshd (sshd_config) configuration file on […]