Skip to main content

Set up your Environment to utilize Invoke-GPUpdate

By
I’m sitting in O’Hare enjoying my 3 hour layover as I get ready to teach a Windows 10 class in Fort Wayne.  I’m actually prepping for my class in Fort Wayne in a few weeks, 10982 Supporting and Troubleshooting Windows 10.  This class is very much like the Windows 7 version that I used to teach so I decided to up the detail quite a bit.  In the GPO troubleshootin chapter, I’m including a demonstration on how to use PowerShell’s Invoke-GPUpdate.  I needed to make sure the environment is set up for me to be able to utilize this cmdlet.  If you read the Notes section on Invoke-GPUpdate’s help file, you will see there are three firwall rules that need to be in place:

  •         Remote Scheduled Tasks Management (RPC)
  •         Remote Scheduled Tasks Management (RPC-ERMAP)
  •         Windows Management Instrumentation (WMI-IN)


I decided to create a little PowerShell script to create this GPO and link it up to the domain.
Here are the steps to create this GPO and link it to your domain.  My test domain is PowerIT.Com so you will need to adjust the code for your domain.

New-GPO -Name "AllowPowerShellGPUpdate" `
        -Comment "Sets the firewall rules to allow Invoke-GPUpdate to work" `
        -Verbose

# Create A GPO Session to reduce the load on the DC.
$GPO = Open-NetGPO -PolicyStore PowerIT.com\AllowPowerShellGPUpdate


# Set the new firewall rules.
New-NetFirewallRule -DisplayName “Remote Scheduled Tasks Management (RPC)” `
                    -Direction Inbound `
                    –Protocol TCP `
                    -Action Allow `
                    -GPOSession $GPO `
                    -Profile Domain

New-NetFirewallRule -DisplayName “Remote Scheduled Tasks Management (RPC-ERMAP)” `
                    -Direction Inbound `
                    –Protocol TCP `
                    -Action Allow `
                    -GPOSession $GPO `
                    -Profile Domain

New-NetFirewallRule -DisplayName “Windows Management Instrumentation (WMI-IN)” `
                    -Direction Inbound `
                    –Protocol TCP `
                    -Action Allow `
                    -GPOSession $GPO `
                    -Profile Domain

# Commit the GPO settings
Save-NetGPO -GPOSession $GPO


Labels

Labels:

Comments

Post a Comment

Popular posts from this blog

How to list all the AD LDS instances on a server

By
AD LDS allows you to provide directory services to applications that are free of the confines of Active Directory.  To list all the AD LDS instances on a server, follow this procedure: Log into the server in question Open a command prompt. Type dsdbutil and press Enter Type List Instances and press Enter . You will receive a list of the instance name, both the LDAP and SSL port numbers, the location of the database, and its status.
Post a Comment
Read more

How to run GPResult on a remote client with PowerShell

By
In the past, to run the GPResult command, you would need to either physically visit this client, have the user do it, or use and RDP connection.  In all cases, this will disrupt the user.  First, you need PowerShell remoting enabled on the target machine.  You can do this via Group Policy . Open PowerShell and type this command. Invoke-Command –ScriptBlock {GPResult /r} –ComputerName <ComputerName> Replace <ComputerName> with the name of the target.  Remember, the target needs to be online and accessible to you.
Post a Comment
Read more

Where did a User’s Account Get Locked Out?

By
Updated: May 15, 2015 When this article was originally published, two extra carriage returns were add causing the code to malfunction.  The code below is correct.   My client for this week’s PowerShell class had a really interesting question. They needed to know where an account is being locked out at. OK, interesting. Apparently users hop around clients and forget to log off, leading to eventual lock out of their accounts. The accounts can be unlocked, but are then relocked after Active Directory replication. This problem is solved in two parts. The first one is to modify the event auditing on the network. The second part is resolved with PowerShell. The first part involves creating a group policy that will encompass your Domain Controllers. In this GPO, make these changes. Expand Computer Configuration \ Policies \ Windows Settings \ Security Settings \ Advanced Audit Policy Configuration \ Audit Policies \ Account Management Double click User Account Management C...
18 comments
Read more