April 27, 2011

Exchange Management: Locate Email Addresses

If you have a large Exchange environment with a large amount of users, contacts, distribution lists, and public folders you can end up “losing” email addresses.  It can take a lot of time to perform the different types of searches required to locate an email address.  Or you can use powershell and locate it quickly.
April 26, 2011

Active Directory: Identify Stale Computer Accounts

Using the Active Directory Modules included with Windows 7 + Windows 2008 R2 we can use powershell to identify computer accounts which are “stale” and have not changed their passwords in a specified amount of time. Define the Windows for “Stale” Example will check for 365 days old. Count the Number of PCs which are Stale Output a List of the Computer Accounts
April 25, 2011

Windows Client Management: Remotely Enable DHCP

Using WMI and Powershell we can remotely configure a client machine to use DHCP as long as you (1) have administrator rights on the remote machine (2) want all interfaces to be DHCP (3) know the computer name or IP of the remote machine (4) have Powershell installed on your machine, remote machine is not required. Check Network Configuration Check Network Configuration (only where IP […]
March 31, 2010

Enabling Jumbo Frames on Hyper-V 2008 R2 Virtual Switches

When using a Core version of Hyper-V 2008 R2, be it Hyper-V Server 2008 R2 or Windows Server 2008 R2 Standard Core, you are doing a good thing to conserve resources and minimize the attack footprint of your virtualization hosts. However this comes at a price. One of the most obvious misses in this matter is the enabling of Jumbo Frames on the Virtual Switch Interface. This enables your guests to reach out to storage directly using jumbo frames (mtu size of greater than 1500 bytes – however in this article we will be working specifically with 9000 bytes).
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