So had a request today to clean up email addresses as some of them were not valid. This was needed for over 1500 email addresses. So used the formula below and was able to find all addresses that were “FALSE”. I filtered them out and was able to fix them as needed. Here’s what you…
Category: Platform
DFS Namespace service could not initialize cross forest trust information
After you install Active Directory on Windows Server 2008 R2, you may start seeing the following error message after the server boots: The DFS Namespace service could not initialize cross forest trust information on this domain controller, but it will periodically retry the operation. The return code is in the record data. This occurs because…
DNS broken after Windows Update KB3145126
I noticed the DNS broke on my servers after Windows Update. The problem was KB3145126. Read more about it here. After a quick removal and reboot, DNS was operational again. To remove/uninstall KB3145126, open powershell and run the following:
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wusa.exe /uninstall /KB:3145126 |
Hope this helps.
Check Proxy settings from Powershell
To check the proxy settings like ProxyOveride or if it is enabled or not:
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Get-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" |
To disable proxy from PowerShell:
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Set-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ProxyEnable -value 0 |
To enable proxy from PowerShell:
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Set-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ProxyEnable -value 1 |
IE Enable/Disable Proxy Settings via Registry
Whatever the reason may be to enable or disable proxy, here is a simple registry hack to turn it on or off. Open powershell in admin mode. Enable:
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Set-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ProxyEnable -value 1 |
Disable:
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Set-ItemProperty -Path "Registry::HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings" ProxyEnable -value 0 |
The above method require an IE restart, alternatively if you don’t want to restart IE. Make similar change under:
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[HKEY_USERS\<your SID>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] |
To find your SID…
Disable IPv6 on Windows Core Server 2008 R2 – 2012 R2
GUI Version: Open Control Panel > Network & Internet > Network & Sharing Center > Change Adapter Settings > Choose the Adapter Right Click – Select Properties Networking Tab DeSelect IPv6 Close No GUI… No problem (Core): After doing the above procedure you might have to use the registry editor aswell to completely disable the…
Change the password age in bulk for Active Directory accounts
Ran into an interesting situation where pretty much all domain accounts did not follow the default password policy and had the option of ‘password never expires’ checked. I needed to fix this immediately without impacting the users and expiring any accounts that may affect the business. I needed to adjust the password age for all…
Remove licensing from ESXi host
WARNING: This is for education/informational testing/development purposes only, and should not be used on a production server. WARNING: This trick will only work with an ESX(i) stand alone server. It will not work if the ESX(i) server is connected to a vCenter Server, as the vCenter Server knows better than to let you do this. …
How to remove hidden network adapters
Windows automatically hides devices that are not presently connected to the system, but they still exist in Windows’ configuration. This is especially problematic when changing virtual network adapters and not being able to remove IP configurations from old adapters. To resolve: Click Start, click Run, type cmd.exe, and then press ENTER. Type “set devmgr_show_nonpresent_devices=1“, and…
Quick and Simple Way to Export DHCP Scope Settings From One Server to Another
Applies to: Windows Server 2008 R2, Windows Server 2012R2, Windows Server 2016 From the command prompt on the source DHCP server run the following command:
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netsh dhcp server export c:\dhcp.dat all |
2. Copy the “dhcp.dat†file to the new, or destination, DHCP server and run the following command:
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netsh dhcp server import c:\dhcp.dat all |
While running the export command, the DHCP service will be temporarily…