Archive | September, 2013

Quick PowerShell script to check DNS settings on all servers

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

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

Command to show all MySQL databases and their sizes

I found this MySQL query to list all DBs and their sizes here. I wanted to blog it, so it is easier for me to find.

mysql -e 'SELECT table_schema AS "Database name", SUM(data_length + index_length) / 1024 / 1024 AS "Size (MB)" FROM information_schema.TABLES GROUP BY table_schema;'

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