How to Install FreeRADIUS on Ubuntu

by File in: Linux

The following article will show you how to install and configure a FreeRADIUS server on top of an Ubuntu host. RADIUS is used as an authentication server for users who connect and use a certain network service, such as VPN. RADIUS is a networking protocol that provides Authentication, Authorization and Accounting (AAA). This means that […]

Convert Physical Server to Hyper-V using Virtual Machine Converter

by File in: Virtualization

The following article is a walkthrough on using Microsoft Virtual Machine Converter 3.1 to migrate a physical server to a VM on the Hyper-V platform. The first step is to go and download the MVMC tool at Once downloaded and installed, go to the Start Menu and fire up the tool. To start, we […]

Fix VSS Issue CAPI2 Error ID 513

by File in: Fixes

Recently I have tried to do a P2V of a Windows Server 2008 SP2 x64 Server: a physical server to a Hyper-V server. To achieve my goal, I used the Microsoft Virtual Machine Converter 3.1 utility. All was fine during the configuration phase until I got to the actual migration part. The Wizard was failing […]

Active Directory Certificate Services Installation

by File in: Active Directory

In the following tutorial, we will see how to deploy a simple Active Directory Certificate Services installation and configure it as a Standalone CA. Our first step is to go to Server Manager, Add/Remove roles, and start the installation process. Under Roles, we select Active Directory Certificate Services. Next, we need to choose which role […]

Upgrade Windows Server 2008 R2 to 2012 R2

by File in: How-To

Hello fellow sys admins! In the following article, we will walk through an in-place upgrade from Windows Server 2008 R2 to 2012 R2. So let us dive right in. The first step in any upgrade is to get the Installation Media. If you are using a Virtual Machine, then it’s as simple as adding the […]

VMware Script – Remove Resource Reservations

by File in: VMWare

In this article we’ll go over the following script that helps us remove resource reservations from all VMs within a VMware cluster. Here is the script that we are going to use: #Variable Declaration Param( [string]$server, [Parameter(Mandatory=$true)][string]$username, [Parameter(Mandatory=$true)][string]$password, [string]$cluster ) #Module Initialization Add-PSSnapin VMware.VimAutomation.Core #Body Connect-VIServer -Server $server -Username $username -Password $password $vms = Get-Cluster […]

Microsoft May 2018 Security Update CredSSP Issue

by File in: Fixes

I have just patched some of my Windows Server 2016 servers with the new May 2018 KB, which fixes a CredSSP vulnerability, but at the same time creates an issue when trying to RDP from a non-patched system. After I finished my workday, one of the project managers sent me a message saying RDP is […]

VMware Script – List Empty Resource Pools

by File in: VMWare

In this article we will go over a simple script that lists all the empty resource pools in a VMware Cluster. This script comes in handy and is a very nice addition to any scripting repository where there are large VMware deployments. #Variable Declaration Param( [Parameter(Mandatory=$true)][string]$server, [Parameter(Mandatory=$true)][string]$username, [Parameter(Mandatory=$true)][string]$password, [Parameter(Mandatory=$true)][string]$cluster ) #Module Initialization Add-PSSnapin VMware.VimAutomation.Core Connect-VIServer […]

Windows Azure Script – Create a New VM from an Existing VHD

by File in: Script

Hello and welcome to another tutorial on using PowerShell with Azure in order to create a new Virtual Machine resource from an existing VHD. From time to time, we might need to copy a Virtual Machine environment from our Hyper-V environment to Azure and create a new VM Instance. To complete this task we will […]

Office 365 Tenant – Get All Users List Script

by File in: Script

In this article I will present to you a small script that lets us get a list of all  users from a specific Office 365 Tenant. The Script: Import-Module AzureAutomationAuthoringToolkit $username = “” $password = ConvertTo-SecureString “Muva9659” -AsPlainText -Force $creds = New-Object System.Management.Automation.PSCredential($username, $password) Connect-MsolService -Credential $creds $users = Get-MsolUser ForEach ($user in $users) { […]