Managing Server Network Protocols with WMI Provider

To view the list of properties associated with each network protocol for the default instance on the local computer:

Get-WmiObject -namespace root\Microsoft\SqlServer\ComputerManagement10 -class ServerNetworkProtocolProperty -filter "InstanceName = 'MSSQLSERVER'" | Select-Object ProtocolName, PropertyName, IPAddressName

To change the port number for IPAll from 1433 to another port — for example, 3660:

# NAME: ChangeDefaultPortNumber.ps1

# COMMENT: This script change the port number of the default instance from 1433 to 3660

$wmi=Get-WmiObject -namespace root\Microsoft\SqlServer\ComputerManagement10 -class ServerNetworkProtocolProperty -filter "PropertyName='TcpPort' and IPAddressName='IPAll' and InstanceName='MSSQLSERVER'"

$wmi.SetStringValue(3660) | Out-Null

$sqlservice = Get-WmiObject –namespace root\Microsoft\SqlServer\ComputerManagement10 -class SqlService –filter "ServiceName='MSSQLSERVER'" #ServiceName='MSSQL`$INSTANCE1'

$sqlservice.StopService() | Out-Null

$sqlservice.StartService() | Out-Null

# Confirm the default port number has been changed

Get-WmiObject –namespace root\Microsoft\SqlServer\ComputerManagement10 -class ServerNetworkProtocolProperty -filter "PropertyName=’TcpPort’ and IPAddressName='IPAll' and InstanceName='MSSQLSERVER'" | Select-Object PropertyStrVal

To assign different port numbers to different IP addresses,the complete script,DisableListenOnAllIPs.ps1, is shown here:

# . for the local computer

# If you want to connect to a remote machine, specify the machine name here.

$strComputer = "."

# Name of the targeted SQL Server instance. Here the default instance is targeted.

# For a named instance INSTANCE1, use "INSTANCE1".

$strInstanceName = "MSSQLSERVER"

$wmi=Get-WmiObject -computerName $strComputer -namespace

root\Microsoft\SqlServer\ComputerManagement10 -class ServerNetworkProtocolProperty -filter "PropertyName=’ListenOnAllIPs’

and InstanceName=’$strInstanceName’"

$wmi.SetFlag(0) | Out-Null

$sqlservice = Get-WmiObject -computerName $strComputer –namespace

root\Microsoft\SqlServer\ComputerManagement10 `

-class SqlService –filter "ServiceName=’MSSQL`$$strInstanceName’"

$sqlservice.StopService() | Out-Null

$sqlservice.StartService() | Out-Null

$wmi=Get-WmiObject -computerName $strComputer -namespace

root\Microsoft\SqlServer\ComputerManagement10 `

-class ServerNetworkProtocolProperty -filter "PropertyName=’ListenOnAllIPs’

and InstanceName=’$strInstanceName’"

# Confirm the ListenOnAllIPs property has been disabled.

Write-Host "The value of the ListenOnAllIPs property is set to " $wmi.PropertyNumVal