×

This article covers how to install Minikube on your Ubuntu 20.04 machine. Minikube is an open source tool that allows you to set up a single-node Kubernetes cluster on your local machine. The cluster is run inside a virtual machine and includes Docker, allowing you to run containers inside the node. 

Now, you can use the single-node Kubernetes with minikube to learn one of the most famous containers orchestration tools in the Cloud Native era. 


To enable and access kubernetes dashboard , run the command:

$ minikube dashboard

This will open the Kubernetes dashboard in the web browser.


To stop the minikube, run:

$ minikube stop

To delete the minikube, run:

$ minikube delete

To Start the minikube, run:

$ minikube start



This article covers how to check OS version using different methods. You can get more information of Ubuntu releases at official site of the Ubuntu Releases.

If you are using Ubuntu 16.04 then you can Upgrade using this guide Upgrade Ubuntu 16.04 to Ubuntu 18.04 LTS.

Ubuntu is a free, open-source Linux-based operating system, which has a long list of release versions. Finding out which Ubuntu version is running on your system can be important when troubleshooting issues or searching for installation guides.


To check the Ubuntu version, use the following command in terminal:

$ lsb_release -a

This will display you some details about your distribution including Ubuntu version:

Distributor ID: Ubuntu
Description: Ubuntu 20.04 LTS
Release: 20.04
Codename: focal



This article covers how to install Virt-Viewer on a Linux Mint 20 system. virt-viewer is a minimal tool for displaying the graphical console of a virtual machine. The console is accessed using the VNC or SPICE protocol. The viewer can connect to remote hosts to lookup the console information and then also connect to the remote console using the same network transport.


Functions of Virt Viewer: 

  • Connect to KVM virtual machines remotely via the SPICE remote desktop protocol.
  • Automatically adjust display resolution of the KVM virtual machines.
  • Use multiple monitors for the KVM virtual machines.
  • Passthrough USB devices from your computer to the KVM virtual machines.
  • Share folders from your computer to the KVM virtual machines.


To install Virt Viewer on Linux:

1. First, update the APT package repository cache with the following command:

$ sudo apt update

2. To install Virt Viewer on Ubuntu 20.04 LTS, run the following command:

$ sudo apt install virt-viewer --no-install-recommends --no-install-suggests

Then, confirm the installation, press Y and then press <Enter>.



This article covers a review about Ubuntu 18.04 LTS (Bionic Beaver). You can find the Ubuntu 18.04 release notes on its official website.


Ubuntu 18.04.4 (Bionic Beaver) was released on February 12, 2020, the long-term support (LTS) release of the Ubuntu, this was the 4rd point release of the 18.04 LTS and it was available for desktop / laptop computers and servers. Ubuntu 18.04.4 desktop didn't support 32-bit CPU architecture, and is only available to install 64-bit (x86-64) versions. Compared to previous releases, this Ubuntu version includes security updates and fixed bugs.



This article covers how you can install Jenkins on Ubuntu OS. For further information about Jenkins, visit its official documentation.

Jenkins is an open-source automation server that can be used to easily set up continuous integration and continuous delivery (CI/CD) pipelines.

Continuous integration (CI) is a DevOps practice in which team members regularly commit their code changes to the version control repository, after which automated builds and tests are run. 

Continuous delivery (CD) is a series of practices where code changes are automatically built, tested, and deployed to production.


To install Jenkins on Ubuntu 20.04 as a standalone service:

1. Run the following commands as root or user with sudo privileges or root to install OpenJDK 11:

$ sudo apt update
$ sudo apt install openjdk-11-jdk

2. Once the installation is complete, verify it by checking the Java version:

# java -version

3. Import the GPG keys of the Jenkins repository using the following wget command:

# wget -q -O - https://pkg.jenkins.io/debian/jenkins.io.key | sudo apt-key add -

4. Next, add the Jenkins repository to the system with:

# sudo sh -c 'echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list'

5. Once the Jenkins repository is enabled, update the apt package list and install the latest version of Jenkins by typing:

# sudo apt update
# sudo apt install jenkins

6. Jenkins service will automatically start after the installation process is complete. You can verify it by printing the service status:

# systemctl status jenkins



This article covers how to install and use the Docker-compose on CentOS 8 system. By using the Docker-compose, you can deploy multiple Docker applications with container services through a single command. 

Basically, Docker Compose is a tool that can be used to define and run multiple containers as a single service. With Docker Compose, you can link multiple containers and deploy an application from a single command. 

It is mainly used in the development, testing and staging environment. 

Docker Compose uses a YAML file to define a complex stack in a file and running it with a single command.


To install Docker on CentOS:

1. Before starting, make sure you have Docker installed on your server. If not installed, you will need to add Docker-CE repository to your system. 

You can add it with the following command:

$ dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo

2. Once the repository is added, install the latest version of docker using the following command:

# dnf install docker-ce --nobest -y
# systemctl start docker
# systemctl enable docker

3. You can verify the docker version with the following command:

$ docker --version



This article covers the complete installation guide of VirtualBox on the CentOS 8 system.

Oracle VirtualBox is a virtualization software solution that allows you to create and run virtual machines on a single hardware machine.

With VirtualBox, your existing operating system stays unaffected by the virtual environment.


To Start VirtualBox on Linux:

Use the command:

$ VirtualBox

The VirtualBox manager interface will prompt you.

Alternatively, you can use the graphical interface and access the application:

Application >> System Tools >> Oracle VM VirtualBox



This article will guide you on the different methods to #install #VirtualBox on Ubuntu 20.04 system. Now, you can create your first guest Linux machine or Windows environment on your Ubuntu system. 

#Xen is a popular, open-source virtual machine application that is officially supported by #Ubuntu. 

It provides high performance, but only supports a small number of host and guest operating systems. 

Ubuntu is supported as both a host and guest operating system, and Xen is available in the universe software channel.

If you want to explore more about the working of the Virtualbox then, you can visit the Official documentation of Virtualbox use from this page .

VirtualBox can be installed on #Windows, Linux, macOS, Solaris, and FreeBSD.


To find the #Linux version:

1. Open the terminal application (#bash shell).

2. For remote server login using the ssh: ssh user@server-name.

3. Type any one of the following command to find os name and version in Linux: cat /etc/os-release. lsb_release -a. hostnamectl.

4. Type the following command to find Linux kernel version: uname -r.



This article will guide you through the processes of Installing VirtualBox, CentOS 8 as a Virtual Machine (VM) on VirtualBox.




More Linux Tutorials

We create Linux HowTos and Tutorials for Sys Admins. Visit us on IbmiMedia.com

Also for Tech related tips, Visit forum.outsourcepath.com or General Technical tips on www.outsourcepath.com