Category Archives: Virtualization

Can’t SSH into VirtualBox Machine

This video will show you how to SSH into a VirtualBox Machine. This video is using CentOS although the concepts should be much the same for other Linux Distros. This Linux Tutorial shows you what do to when you can’t SSH into VirtualBox Machine. First you will need to power off your VM. Next you will need to right click, settings, click network, select adopter 2 and enable VirtualBox host only adapter. Once done you will need to power on the machine. Next you will need to make sure that this new connection has an IP address. In CentOS this is done by creating a new network connection in the /etc/sysconfig/network-scripts folder. We then configure this network have a DHCP IP address and restart the network connection. Once done we restart the network, and SSH in to our machine.


How to Install CentOS 8 on VirtualBox 2020

This CentOS 8 tutorial will show you how to install CentOS 8 on VirtualBox. To begin you will see how to create a Virtual machine on VirtualBox. Next you will see how to download CentOS 8 to windows. Next you will see the CentOS 8 installation process. You will mount the CentOS 8 installation media into VirtualBox. Next you will see the CentOS 8 installation process step by step.7 Finally you will log into CentOS 8 server. This installation of CentOS 8 on VirtualBox take place on windows, in affect showing you how to run CentOS 8 on windows 10. The Install process will be the same if you are running on a physical machine.

How to install vmware workstation player on windows 10

VMware Workstation Player
VMware Workstation Player is an ideal utility for running a single virtual machine on a Windows or Linux PC. Organizations use Workstation Player to deliver managed corporate desktops, while students and educators use it for learning and training.
The free version is available for non-commercial, personal and home use.

This tutorial will show you how to install VMware workstation player on windows 10.

VMWare workstation player can be downloaded from here:


How to create an Amazon Machine Image

You can create an Amazon Machine Image or AMI for your existing EC2 instance. The AMI will allow you to launch a fresh EC2 instance using the AMI as a template. You can also share the AMI with other AWS accounts.

Step 1

To get started, it is best practise to stop your instance before you start. So right click your instance and click stop

Step 2

When the instance has stopped, right click it again, click image and then create Image

Step 3

Give your Image a name, a description and then click create Image

Step 4

In the screen that appears click the ami ID.

Step 5

You will now see your image creation as pending.

Step 6

Once the ami is marked as available you can then launch it as an EC2 instance.

A full video tutorial can be found here:

VirtualBox host only adaptor disappeared (Interface (‘VirtualBox Host-Only Ethernet Adapter’) is not a Host-Only Adapter interface (VERR_INTERNAL_ERROR) SOLVED

Hi there,

After recently updating Windows 10, none of my VMs in VirtualBox would power on. I kept receiving an error that read:

(Interface (‘VirtualBox Host-Only Ethernet Adapter’) is not a Host-Only Adapter interface (VERR_INTERNAL_ERROR) SOLVED


After looking around the settings of my Windows 10 machine I noticed that the host only adaptor was missing. To fix it I added a new adaptor by doing the following:

Step 1

I clicked file and then Host Network Manager

Step 2

In the screen that appears I then clicked Create, to create a new Host Only Network.

Step 3

I then right clicked on the VM i wanted to start and clicked settings.

Step 4

I then did the following:

  • Clicked on Network.
  • Selected the checkbox to enable Network adaptor.
  • Assigned the Host only adaptor I created.
  • I then clicked ok.

The VM then booted without issue.

A full video Tutorial can be found here:

How to Install VirtualBox guest additions on Windows

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This short tutorial will shows you how to install VirtualBox guest additions on Windows. Guest additions consist of device drivers and system applications that optimize the guest operating system for better performance and usability.

In this tutorial we are using windows server 2016, however this guide should work on most versions of Windows.

First click on Devices and then click insert Guest Additions CD Image

Next navigate to Computer / this PC

Now double click on VirtualBox Guest Additions

We then clicked on the VBoxWindowsAdditions-amd64 (if you are running a 32bit system you can select the 32 bit version)

Then simply step through the wizard to complete the installation.

When prompted reboot the system when it is fully rebooted you will have guest additions installed.

A full video tutorial can be found here:

How to install Fedora 27 on VMWare Workstation 12

Hi there,

This tutorial will show you how to install Fedroa 27 in VMware Workstation 12. Fedora is an excellent operating system that is open source and free. It runs great on older hardware so is a great option for older laptops. With that said let’s get stuck into the tutorial.

  • When the ISO file has downloaded, open VMWare Work station, click File and then new Virtual machine.
  • In the next screen leave the configuration as typical and select next.
  • Now click browse and navigate to where you downloaded the .iso file, once it is added in click next.

  • Give your machine a name or leave as the default and click next.
  • Up the hardrive to 40GB and click next
  • Click customise hardware.
  • Increase the memory to 2GB of RAM and add an extra processor and click close.

  • Finally click finish.
  • When the machine boots up select “Test this media & start Fedora-Workstation-Live 27”
  • Select install to Hard drive.
  • Select your language and click continue.
  • Click installation destination.
  • Click on the desk and click Done.

  • Click Begin installation.
  • Set a root password.
  • Create a new user and make the user and administrator by clicking the relevant checkbox.

  • Click quit when the install is done.
  • Then restart the machine.

You should then have Fedora installed. A full video tutorial can be found below and if you have any trouble following along with this tutorial please do comment below 🙂

How to reset the root password on CentOS 7 / Redhat 7 (RHEL 7)

This tutorial will show you how to reset the root password on CentOs 7 / Redhat 7. As a health warning please be sure that when doing this you have taken a snapshot of your VM or if it’s a physical server that you follow the instructions very carefully. With that in mind lets get started.

Step 1

When the system boots up press e on this screen.

Step 2

In the screen that appears scroll down to the line were you see Linux 16

Now Change where its says ro to:

rw init=/sysroot/bin/sh

Then press ctrl + x

Step 3

You will now be in emergency mode which will look like the screen below:

Step 4

Type in the command:

chroot /sysroot

Step 5

Reset the root password by typing in:

passwd root

Step 6

No ensure that selinux will be relabelled by typing the command:

touch /.autorelabel

Step 7

Type in:


Step 8

Now reboot by typing in:


How to Install CentOS 7 On VMware Workstation 12

In this tutorial you will learn how to install CentOS 7 on VMWare workstation 12. The first thing that you need to do to Install CentOS 7 is to download CentOS 7 from the CentOS website:

The version that you will need to download is the DVD ISO. Once you have downloaded the CentOS7 ISO, you will need to open VMWare workstation.

Once VMWare workstation is open you will then need to follow the following steps to ensure that CentOS 7 is installed.

  • Click file and then New Virtual Machine.
  • Then click typical and next.
  • Find the ISO file you saved and click next.
  • Give your machine a name and click next.
  • Set your disk size and click next.
  • Click customise hardware.
  • Increase the RAM to 2GB
  • Then click close and finish.
  • Then power on the CentOS 7 machine.
  • Select install CentOs 7.
  • Select your language and click next.
  • Select Gnome Desktop for Software Selection and then done.
  • Select the disk you created for installation destination and then done.
  • Then click begin install.
  • Next create your root password and click done.
  • Then create your user, create a password for that user and select make that user an administrator.
  • Then click reboot.
  • Accept the license on start up and click finish configuration.
  • You have now installed Centos 7 On VMWare.
  • The video guide below shows the process in more detail.


How to Install Microsoft Windows Server 2016 on VMware workstation

This video shows you how to install Microsoft Windows Server 2016 as a Virtual machine in VMWare workstation 12. To follow along with the tutorial you will first need to download the evaluation version of Windows Server 2016 from Microsoft, which is available from their evaluation site:… Once completed, you can follow the steps in the video to install Windows Server 2016.