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 […]
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 […]
Scan for network vulnerabilities using NMAP
Are you concerned about the security of your network? Learn about for network vulnerabilities scanning using NMAP, a powerful tool that can help you identify potential security issues and keep your network safe from cyber attacks. Table of Contents Introduction Network Mapper (NMAP) is a free and open-source tool used for network exploration, security auditing, […]
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 […]
Installing and using Gitlab CE on Ubuntu 20.04
In this article, we will examine installing and using Gitlab on Ubuntu server version 20.04. Gitlab community edition or Gitlab CE can be installed by simply using apt install. Table of Contents Introduction GitLab is a web-based Git repository manager that provides features such as issue tracking, continuous integration, and continuous deployment. It is available […]
Installing Ubuntu Desktop 20.04 on KVM
In this tutorial, we will review how to install Ubuntu desktop on KVM. For this particular demonstration, we will examine version 20.04 of the operating system or Focal Fossa as it’s commonly known by codename. Table of Contents Introduction Installing an Ubuntu Desktop instance on KVM is a straightforward process that we will review in […]
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 […]