Tech Note: Tombstone Active Directory Domain Controllers

I have a number of test platforms which I use, and last week I started one which had been offline for a number of months. It consists of two Hyper-V Virtual Machines, each running Windows Server 2012 R2. These servers are configured as ADDC in the same domain and the last time I used them all was working as expected. However, upon firing them up I noticed a few errors with Active Directory Replication, the problem? My Active Directory Domain Controllers were tombstoned.

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Blog: Building a Plex Media Server

If you’re anything like me, you have a considerable amount of downloaded content (music, tv shows, movies) stored away on a desktop PC. Over the years this library has grown considerably and back in the day before the plethora of mobile devices we now own, having this only available on the desktop was fine. However, in 2017 this ‘stuff’ needs to be accessible on all your devices.

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Blog: 2016 Review

2016 was the second full year for TechSupportPro | UK, and a very productive one it was. With a trip to Leeds, UK, I attended a Microsoft tech day, and got my first look at Windows Server 2016. I tested my first wearable device, a Microsoft Band 2 and I also got a first look at Windows 10 Mobile. 2016 was one to remember.

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Certs 1.2 – Network Services & Applications (Network+)

VPN – Site to Site / Host to Site / Host to Host

Protocols

  • IPSec – Provides authentication & data encryption – Operates at the network layer
  • GRE – Generic Routing Encapsulation, encapsulates the data, operates at network layer & is a CISCO technology.
  • SSL VPN – Main use is eCommerce, uses cryptography (secure authentication & communications)
  • PTP / PPTP – Port 1723 UDP, Point to Point, layer 2, PPTP has been largely replaced by L2TP with IPSec.

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