Determine System Boot Time

Here is a simple command to determine the system boot time:
systeminfo | find "System Boot Time"

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Credit to http://www.powercram.com/2010/01/find-last-reboot-time-in-windows-7.html

Powershell - Query AD for Servers

The following Script stub will query AD for all active Windows 2008 Servers (can be tweaked) and create a collection of those servers.

# ######################################################################
# - Section for gathering Windows Server Information ...
# -- Define Global Variables --
  $strCategory = "computer"
  $strOS = "*2008*"
 
  # -- Get AD information --
  $objDomain = New-Object System.DirectoryServices.DirectoryEntry
 
  $objSearcher = New-Object System.DirectoryServices.DirectorySearcher
  $objSearcher.SearchRoot = $objDomain
  $objSearcher.Filter = "(&(objectCategory=$strCategory)(operatingSystem=$strOS)(name=*)(!(userAccountControl:1.2.840.113556.1.4.803:=2)))"
 
  # - define Attributes to find -
  $colProplist = "name"
  foreach ($i in $colPropList){$return=$objSearcher.PropertiesToLoad.Add($i)}
 
  # - Find all Computers that fit the Search profile
  $colResults = $objSearcher.FindAll()
 
  # -- Format the Output --
  # convert Collection into an array
  $servers = @()
  foreach ($objResult in $colResults)
  {
    $servers = $servers + $objResult.Properties.item("name") 
  }
  # Sort Server Names
  $servers = $servers | sort-object

Powershell - Tip of the Day

Here is a great site to browse for tips and to subscribe to their Tip-of-the-Day.

http://powershell.com/cs/blogs/tips/