Fix Active Directory broken security inheritance problem

Ran into a situation at a client location where in Active Directory, the security permissions applied to an OU were not getting inherited permissions on to the objects. Basically, security inheritance was broken.This causes a problem when the administrative accounts or groups needing to modify an attribute on the AD object throw errors, or are … Read more

All of Windows Cipher Suites

Working on a security project and I needed a reference guide as to what cipher suites are supported on what OS. So I have documented a list of the default cipher suites and their preferred order for every Windows Server version. These were gathered from fully patched operating systems.  

ConfigMgr 2012 R2 – WSUS sync fails with HTTP 503 errors

Ran into this issue with ConfigMgr 2012 R2 where it was unable to synchronize Software Update Point with the WSUS server. A review of the component status messages for the SMS_WSUS_SYNC_MANAGER component on the primary site server reveals errors related to WSUS synchronization which are similar to the following: Got the following error when trying … Read more

Outlook 2016: Remove Duplicate entries in Room Finder

In Outlook 2016 some users may noticed dual entries in the Room List: The room list behavior that we see  in Outlook is by design. When we  use a Room List  for a meeting, it is stored in the  Most Recently Used entries in the registry. When we create a new meeting, we will see this MRU entry in the top of the Room Lists . The same Room List will be seen again in the drop down which … Read more

Hack: Microsoft Outlook AutoComplete

Outlook maintains the AutoComplete list. The list is used by both the automatic name-checking feature and the automatic completion feature. The AutoComplete list, also known as the nickname cache, is generated automatically when you send email messages from Outlook. The list contains SMTP addresses, LegacyExchangeDN entries, and display names for people to whom you have … Read more

How to force update GlobalAddressList in Office 365?

This post explains how to manually force and update the global address list in Office 365. Updating the global address list requires to have the Address List Management role. By default, nobody has this role. 1. Assign the AddressList Management role Login with your administrator account to the Office 365 portal. Go to Exchange Admin … Read more

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

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:

2.  Copy the “dhcp.dat” file to the new, or destination, DHCP server and run the following command:

While running the export command, the DHCP service will be temporarily … Read more