Excel: Check email addresses in bulk if format is correct or not

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 … Read more

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 … Read more

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:

Hope this helps.

Check Proxy settings from Powershell

To check the proxy settings like ProxyOveride or if it is enabled or not:

To disable proxy from PowerShell:

To enable proxy from PowerShell:

 

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:

Disable:

The above method require an IE restart, alternatively if you don’t want to restart IE. Make similar change under:

To find your SID … Read more

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 … Read more