jbmurphy.com

I wanted to decommission some old Domain Controllers. I needed to make sure that other servers weren’t pointing to theses old DCs for DNS. I wrote this quick PowerShell script to loop through all servers and get their DNS search order.

$AllServers=Get-ADComputer -Filter {OperatingSystem -Like "Windows Server*"}
ForEach ($Server in $AllServers){
$Result=Get-WmiObject -Class Win32_NetworkAdapterConfiguration -Filter "IPEnabled = 'True'" -Property DNSServerSearchOrder -ComputerName $Server.Name 
$output = new-object PSObject 
$output | add-member NoteProperty "ComputerName" $Server.Name
$output | add-member NoteProperty "DNSServerSearchOrder" $Result.DNSServerSearchOrder
$output
}

Hope that helps some one, or me when we moce to the next version of DCs.

When I am working in Linux, I like to leave a log open with “tail -f”, so I can see the results of some test I am performing.

The other day I wanted to see when a new machine joined the network, so I could give it a static DHCP lease. Usually I connect to the DHCP server find the DHCP logs and open them in notepad. I finally wrote a quick script to “tail -f dhcp.log” in PowerShell.

 

function JBM-AD-GetDHCPLogs {
 PARAM($ServerName="dhcpServerName")
 $FileName="DhcpSrvLog-$(get-date -format ddd).log"
 $PATH="\\$ServerName\c$\Windows\System32\dhcp\$FileName"
 Get-Content $path –Wait
 }