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DHCP server the specified servers are already present in the directory service

Details
Category: Windows Server
Read Time: 1 min
Published: 18 February 2025

Sometimes if you replace a server or even migrating you will encounter the error:

the specified servers are already present in the directory service

The error exactly says what it means, the DHCP server you are trying to authorize already exist within the Active Directory domain.
This is how you fix it!

Read more: DHCP server the specified servers are already present in the directory service

Citrix Studio reports Database Down

Details
Category: Windows Server
Read Time: 2 mins
Published: 18 February 2025

When you start to notice your users are not getting their desktops listed, then chances are high your Citrix delivery controller isn't able to connect to the database.

Read more: Citrix Studio reports Database Down

MDT MSC crashes and not generating LiteTouch images

Details
Category: Windows Server
Read Time: 2 mins
Published: 18 February 2025

I've recently had to deploy a new MDT server on a Windows 2019 machine, should be straight forward having done this 2-3 years ago.
But apparently Microsoft made changes causing it to not working anymore on a fresh install.

Read more: MDT MSC crashes and not generating LiteTouch images

Apache Guacamole through IIS Reverse Proxy

Details
Category: Windows Server
Read Time: 3 mins
Published: 18 February 2025

The documentation for Apache Guacamole doesn't mention anything about configuring a reverse proxy with IIS. You kind of have to translate things from Apache/NGINX to IIS. 

Read more: Apache Guacamole through IIS Reverse Proxy

Add new VM to Citrix VDI Pool

Details
Category: Windows Server
Read Time: 4 mins
Published: 18 February 2025

I don't do this often enough to remember this so i rather document this incase I have to do it again. If it helps me, maybe it helps you as well.

Read more: Add new VM to Citrix VDI Pool

More Articles …

  • Windows Update fails with 0x80240438
  • Diagnosing the Citrix write cache
  • Folder Redirection Folder Change in GPO not Updating
  • Windows extend disk with no adjacent free allocated space

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Feel free to use any information you might find here. I keep it as a repository for things I might need later in the future.

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