Bulk change UserPrincipalName in Active Directory via PowerShell

Getting things ready for cloud migration or anything different, lot’s of companies need to change their users UPNs. As consultant I had to do that several times, therefore I wrote some lines of PowerShell code, to manage this. It’s not that difficult, but for documentation my script also creates a CSV file with the UPNs …

Windows Server DomainController find LDAP binds

Some time ago Microsoft announced the changing of default domain controller behavior for ldap and ldap signing. See LINK.This affects every supported version of Windows Server (from 2008R2 till 2019). There is another LINK ADV190023 with detailed explanation. I think there should be no discussion to change your domaincontroller to ldap signing only. But what …

FirstWare DynamicGroup – Part 1: a small tutorial

Some time ago a company named FirstAttribute asked me to write an blogpost about their outcoming software. So here is the result of my decision ;-). At the beginning I had been a little bit incredulous. After testing some things inside my lab, the software worked pretty fine so I’m glad to write these lines. …

Fill AD groups with content from txt files (users can manage AD groups without AD console)

Some time ago a customer asked me to create a small powershell script which can read users from text files and add them to special Active Directory groups once a day via scheduled task. The goal is letting some “admin” users change AD groups via text file by adding the SamAccountName to these text files, …

Windows Admin Center 1903 AD / DNS /DHCP management offline Server

Some days ago microsoft launched the brand new windows admin center v1903 preview (IMPORTANT!). It’s only a preview but today I’ll have a look at some really cool extensions. One great improvement is the AD query to add some servers or workstations. Works in my testing enviroment. You can search with wildcards 😉 What I …