Author: Rahul

I, Rahul Kumar am the founder and chief editor of TecAdmin.net. I am a Red Hat Certified Engineer (RHCE) and working as an IT professional since 2009..

This tutorial helps you to switch between multiple Java versions on Debian system. For example, you have installed multiple Java versions on your Debian Linux system. Now you want to switch to other Java version as default Java. Use update-alternatives command to set default Java version as following command: sudo update-alternatives –config java According to the above screenshot, I have selection option 2 which will set Oracle Java 8 as default Java version on your system. You can use java -version command to view default version.

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PHP 7.3 is the latest stable release of PHP. May of popular yum repositories is providing rpm packages for PHP 7. This article is using Remi and EPEL yum repositories for installing required packages on your system. This article will help you to install PHP 7.3, PHP 7.2, PHP 7.1 on CentOS & RHEL 6 systems. Install PHP7, Nginx and MySQL on CentOS/RedHat Configure Yum Repository First of all, you need to enable Remi and EPEL yum repositories on your system. Use the following command to install EPEL repository on your CentOS and Red Hat 7/6 systems Use this command…

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The mod_wsgi Apache module is used for serving Python scripts over HTTP via the Apache web server. This tutorial helps you to how to install the Apache mod_wsgi module on Ubuntu 18.04 (Bionic Beaver). Step 1 – Prerequisites Login to Ubuntu 18.04 server console via SSH and install some prerequisites packages on the system. sudo apt-get update sudo apt-get install python libexpat1 Step 2 – Install mod_wsgi Module Before starting, you will need to install some prerequisite Apache components in order to work with mod_wsgi. You can install all the required components by simply running the following command: sudo apt-get…

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There are a lot of CI services out there and it can be difficult to choose the right one. Depending on your project needs, you might need something more complex or something simpler. If you’re working with a team of developers and want to implement continuous integration as part of your software development process, you should consider using Jenkins for your next project. With this article, you will learn how to install and configure Jenkins on your Debian-based system. Before You Begin Before beginning the Jenkins installation, make sure your system fulfills the prerequisites. Jenkins required Java Runtime Environment (JRE)…

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SVN is an open source version control system build by Apache Foundation Team. It helps you keep track of a collection of files and folders. Any time you change, add or delete a file or folder that you manage with Subversion, you commit these changes to your Subversion repository, which creates a new revision in your repository reflecting these changes. You can always go back, look at and get the contents of previous revisions. This article will help you for step by step setup of Subversion (svn) server on Debian 11, Debian 10 and Debian 9 Linux systems. Step 1…

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Ansible is an automation tool for managing multiple remote hosts from the single machine. It provides you with an easy to configure for a large number of remote hosts. For example, you are performing the same tasks over multiple machines, Ansible provides you the option to automate these tasks. This tutorial will help you to install Ansible on Debian 8 (Jessie) systems. Step 1 – Configure SSH Access You can configure key based ssh for the remote Linux Ansible hosts. So password will not be required for SSH. Ansible also allows you to use a password for ssh, but key-based…

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Ansible is an automation tool for managing multiple remote hosts from the single machine. It provides you with an easy to configure for a large number of remote hosts. For example, you are performing the same tasks over multiple machines, Ansible provides you the option to automate these tasks. This tutorial will help you to install Ansible on Debian 9 (Stretch) systems. Step 1 – Configure SSH Access You can configure key based ssh for the remote Linux Ansible hosts. So password will not be required for SSH. Ansible also allows you to use a password for ssh, but key-based…

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Ansible is an automation tool for managing multiple remote hosts from the single machine. It provides you with an easy to configure for a large number of remote hosts. For example, you are performing the same tasks over multiple machines, Ansible provides you the option to automate these tasks. This tutorial will help you to install Ansible on Ubuntu 16.04 (Xenial) LTS systems. Step 1 – Configure SSH Access You can configure key based ssh for the remote Linux Ansible hosts. So password will not be required for SSH. Ansible also allows you to use a password for ssh, but…

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Ansible is an automation tool for managing multiple remote hosts from the single machine. It provides you with an easy to configure for a large number of remote hosts. For example, you are performing the same tasks over multiple machines, Ansible provides you the option to automate these tasks. This tutorial will help you to install Ansible on Ubuntu 18.04 (Bionic) LTS systems. Step 1 – Configure SSH Access You can configure key based ssh for the remote Linux Ansible hosts. So password will not be required for SSH. Ansible also allows you to use a password for ssh, but…

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VDI is the native format for VirtualBox and has many advantages over VMDK disk. VMDK also has its own advantages over other formats and you can also use vmdk disk with VirtualBox. In some cases, if you still required to convert .vmdk to .vdi disk format. Use VBoxManager command to convert .vmdk to .vdi. VBoxManage – Convert VMDK to VDI If the vmdk disk is attached to running virtual machine shutdown the VM first and remove vmdk file from VM. Windows Users can use the following command to change UUID of D:\NewVM\myDisk1.vdi disk. c:\> cd “C:\Program Files\Oracle\VirtualBox\” c:\> VBoxManage clonehd…

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