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 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
Launching the Brackets Code Editor To launch the Brackets Code Editor, simply issue the snap run command (below): admin@vm10:~ $ snap run brackets Photo by admingeek from Infotechys Uninstalling the Brackets Code Editor To uninstall the Brackets Code Editor, simply run the snap remove command (below): admin@vm10:~ $ sudo snap remove brackets brackets removed Conclusion We have […]
Install Komodo Editor on CentOS8
In this tutorial, we will install Komodo Editor on CentOS8. Granted, it can be installed on any Linux distribution (rpm-based or Debian distro). However, we will demonstrate the installation process using a CentOS8 virtual machine. Table of Contents Introduction Komodo Editor is a free and open-source text editor used for programming and web development. It […]
Install Gedit on CentOS7
In this tutorial, we will install gedit on CentOS7. We are going to use yum for the installation so it’s a straightforward process. The same procedure works for installing gedit on a Red Hat Enterprise Linux 7 (RHEL) machine. Table of Contents Introduction Gedit is a general-purpose text editor designed for the GNOME desktop environment. […]
Install CentOS8 on KVM
In today’s tutorial, we will install CentOS8 on KVM. The install process is fairly straightforward and we will cover it here step-by-step. We will follow a similar format to the “Install RHEL7 or CentOS7 on a PC” article. The difference is, our CentOS8 instance will run in our KVM virtual environment. Table of Contents Introduction […]