Category Archives: Microsoft

Solve GPO replication problems

Solve GPO replication problems   I have seen this issue multiple time when replicating between Windows 2003 and Windows 2008.  Windows 2008 and Windows 2012.  If your domain controllers are not the same OS/version this could be an issue. Here is a quick and simple way to fix your replication nightmares. Open command prompt on… Read More »

Microsoft Cluster Service vs NLB

MCS vs NLB Microsoft Cluster Service (MCS) This is a list of Pros and Cons for Clustering and Network load balancing. A couple of months ago, the company I work for was looking to provide HA/redundancy for web servers.  This was the list I complied of Pros and Cons.  Each of these services has their… Read More »

Disable SMB NULL on Windows 2012

Disable SMB NULL on Windows 2012 Last Monday we got our PCI penetration test back from our PCI auditor. They have exploited a vulnerability for SMB NULL share on a domain controller. On Windows 2008 Server is was easy.  You made a couple registry changes and everything was good. Here are the  Windows 2008 registry… Read More »

Detect SMB NULL on Windows 2012

Detect SMB NULL on Windows 2012 Here is how to detect if you have SMB NULL enabled on your servers. In a command prompt type: net use \IP_AddressIPC$ “” /u:”” Replace the IP_Address with the IP of a server or desktop. You will see this. Notice that I run net use again. If you see… Read More »

Blue screen of Death

How to fix the Blue Screen of Death on Windows 7 and Windows 2008 R2 and later OSs. Boot the computer into Recovery console.  This can be done with the Windows disk. Restore Registry from a previous backup. You need to find the drive letter that hold the windows directory of your install. Go to that… Read More »

Exchange 2010 OWA HTTP 500 Error

Exchange 2010 – Experiencing an OWA HTTP 500 Error?   I came across this error at a client site this morning.  You are presented with the login screen. You log in to the OWA site with the required username and password.  You are then presented with a “HTTP 500” error. The first thing that comes… Read More »

Move Exchange Mailbox to a new users

I got a call last week on how to move an Exchange mailbox from one user to another. You need to disconnect the user from the mailbox and then connect the new user account. This is very easy in PowerShell. Lookup on which storage group/mailbox store the user is connected at this moment (if there… Read More »