Explanation of Service Principal Names in Active Directory

by File in: Active Directory

In this article, we’ll be talking about identity management in Windows Server 2016. Specifically, we will be talking about SPNs (Service Principal Names) and how wonderful they are. First of all, an SPN is like an alias for an AD object, which can be a Service Account, User Account or Computer object, that lets other […]

Advanced Windows System Cleanup Commands – SFC and DISM

by File in: Troubleshooting

Recently I’ve come across some issues with one of my Windows Server installations, which was behaving relatively odd. Big surprise, right? After doing some digging around, I’ve come up with a complete set of commands that checks the system health and repairs any corruption that may have occurred with system files. Feel free to run […]

Fix VMware Missing HBA Adapters

by File in: VMWare

Every once in a while we run into a big problem when we install a brand new ESXi server only to come to find that for some reason we don’t see any HBA adapters, even though we’ve used the customized image with all the drivers and so forth. I usually see this happening in HP […]

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 https://www.microsoft.com/en-us/download/confirmation.aspx?id=42497. 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 […]