POWERSHELL - The member's SID could not be resolved - powershell

Hello im working with Active Directory Group and Users and i wanna check and set proper Users/Groups from AD to machines. Problem is when i iterate over Local Users/Groups on some machine and there is old Users/Group that no longer exists in AD POWERSHELL will stop working and will throw exception.
An error (1332) occurred while enumerating the group membership. The member's SID could not be resolved.
I know what causes this problem but i dont know how to work around it. The main issue here is that its not even possible to iterate over whole array of users if one is no longer valid. Only solution to this is manualy delete those invalid users.
I even saw some reports to Microsoft that this behaviour is wrong and should be fixed but nothing was done about it.
Anyone here encountered this issue?
Thank you for your help.
$ctype = [System.DirectoryServices.AccountManagement.ContextType]::Machine
$computer = "PC name"
$groupName = "Administrators"
$context = New-Object -TypeName System.DirectoryServices.AccountManagement.PrincipalContext -ArgumentList $ctype, $computer
$idtype = [System.DirectoryServices.AccountManagement.IdentityType]::SamAccountName
$groupData = [System.DirectoryServices.AccountManagement.GroupPrincipal]::FindByIdentity($context, $idtype, $groupName)
$groupData.Members | select #{N='Server'; E={$computer}}, #{N='Domain'; E={$_.Context.Name}},#{N='Group'; E={$groupName}} , #{N='Account Name/Group'; E={$_.SamAccountName}}
Here is example of code that im using for iterating over Local users/groups on some PC.

Can You post the code that you are using, and the full error. Im guessing there is a workaround, but without seeing your code I can't see what could be wrong. If a terminating error is thrown it will stop the script or function from running further (with some gotchas, and exceptions), there are many ways of working around this
Also could you post the full error.
You will probably need to set the $erroractionpreference to silentlycontinue. And then review the $error variable to check the errors, but again I am only speculating.

Related

MS Graph API - Group & membership info

I'm trying to pull out a listing of all groups in our Azure Active Directory org along with all the associated members (be them users, groups, contacts, etc).
Since I was unable to locate a method to do this through the various Microsoft portals with a simple export button I began the process of obtaining access to the Microsoft Graph API/SDK via Powershell.
I'm by no means a PowerShell expert as it's not one of my go-to scripts; however, from what I can tell the ability to pull group info in this fashion is fairly limited.
The following is what I've been able to accomplish thus far:
Pull in a list of the groups using Get-MgGroup -All
Use Get-MgGroupMembers to pull back a list of Directory Objects.
This is where I get stuck. From what I've read it looks like a Directory Object by default only returns the ID and the Deleted Date. I'd like to get a display Name for these objects; I can obviously do this by running the appropriate 'Get' cmdlet for the type of directory object (i.e. Get-MgUser); From what I can tell the type of directory object can't be gleaned via PowerShell with out 'trial-and-error'... This seems highly inefficient to simply get a displayName.
Is there a more effective way to determine either the displayName of a Directory Object via a PowerShell cmdlet or at the very least a type so I can write a case statement to run the right cmdlet on the first try?
For the record this is going to be incorporated in to a Powershell Script, the current iteration of which looks like this and sorta works okay... assuming the Id passed in $member.Id belongs to a User type directory object.
Connect-MgGraph
$groups=Get-mgGroup -All
ForEach ($group in $groups){
$members = #{}
$members = Get-MgGroupMember -GroupId $group.Id -All
ForEach ($member in $members){
$user = Get-MgUser $member.Id
Write-Output $object.ODataType
Write-output $group.DisplayName "," $member.Id "," $user.UserType"," $user.DisplayName "," $user.UserPrincipalName "," $user.Mail >> C:scripts\Azure_Groups.txt
}
}
Would appreciate any direction/assistance on this. Thanks in advance!
Not sure why its not returning all the details on the PowerShell query:
This is working fine in MS Graph Explorer with the results showing all the details of the members:
For more details:https://learn.microsoft.com/en-us/graph/api/group-list-members?view=graph-rest-1.0&tabs=http#example-1-get-the-direct-membership-in-a-group

Use Connect-PnPOnline in a workflow

Good morning, everyone,
I have a problem in retrieving information from SharePoint groups. I do it in a workflow, first I get the list of all groups and then I use it in a foreach-parallel to list the members of these groups.
The problem is that the connection doesn't seem to be maintaining and my query doesn't recover all the groups.
Here is a piece of the code:
workflow GetGroup {
param(
[Parameter(Mandatory)]
[String]$SPOSite,
[System.Management.Automation.PSCredential]$SPOCreds
)
$KeepAlive = Connect-PnPOnline -Url $SPOSite -Credentials $SPOCreds -ReturnConnection
$GetGroups = Get-PnPGroup
ForEach -Parallel -ThrottleLimit 512 ($Group in $GetGroups)
{
$GroupName = $Group.LoginName
$Users = Get-PnPGroupMembers -Identity $groupName -Connection $workFlow:KeepAlive
}
}
GetGroup -SPOSite "https://xxx.sharepoint.com/sites/xx -SPOCreds (Get-Credential)
The expected result would be an array initialized at the beginning of the workflow with a PSCustomObject object that is added to our array. This table is made up of 3 things: The name of the group, the names of the people in that group, the emails of the people.
Unfortunately the table is only partially generated because a workflow here is the error I find nothing on the subject:
Impossible to link the "Connection" parameter. Impossible to convert the value "SharePointPnP.PowerShell.Commands.Base.SPOnlineConnection" of the type "SharePointPnP.PowerShell.Commands.
Deserialized.SharePointPnPnP.PowerShell.Commands.Base.SPOnlineConnection"
Thank you for your help.
I ran into the same error in a similar scenario, and this article helped me. Workflow is converting the Connection object ($KeepAlive in your case) to a deserialized format, and so the other cmdlet doesn't accept it. You will just have to wrap those cmdlets with InlineScript, or use a PowerShell script runbook instead of a PowerShell workflow runbook.

How to use Remove-LocalGroupMember to remove from a server?

I have the following script that is supposed to remove members from a server:
$ssasInstance = ""
$accountName= ""
Import-Module SqlServer
[Microsoft.AnalysisServices.Server]$SSASserver = New-Object ([Microsoft.AnalysisServices.Server])
$SSASserver.Connect($ssasInstance)
$role= $SSASserver.Roles["Administrators"]
$role.Members.Remove($accountName)
$role.Update()
The problem is for some reason Remove() is not really working, no errors generated, but it doesnt remove the user.
I tested the script by instead adding a user, $role.Members.Add($accountName) and this works great! so i know that it must be a bug with the remove() method, and the only option I have is to use Remove-LocalGroupMember
I tried just using it like this:
$ssasInstance = ""
$accountName= ""
Import-Module SqlServer
[Microsoft.AnalysisServices.Server]$SSASserver = New-Object ([Microsoft.AnalysisServices.Server])
$SSASserver.Connect($ssasInstance)
$role= $SSASserver.Roles["Administrators"]
Remove-LocalGroupMember -Group "Administrators" -Member "$accountName"
$role.Update()
but that doesnt work either...although i think its because it doesnt know exactly where its removing from...
I tried this too, but to no avail:
Remove-LocalGroupMember -Group "$role" -Member "$accountName"
So how can i integrate this module into my script?
This is an unfortunate confluence of circumstances: when you do
$role.Members.Add("member")
This works because, under water, the string "member" is implicitly converted by PowerShell to a RoleMember with a Name of member and an empty Sid. All fine. However, if you then do
$role.Members.Remove("member")
Nothing happens, because you will create a new RoleMember instance, and since RoleMember has no implementation of .Equals() (a fairly bizarre oversight), different instances will never be considered the same.
This means you can only remove members by getting the actual instance in the collection (or by index, I suppose):
$member = $role.Members.Where{$_.Name -eq "member"} | Select -First 1
$role.Members.Remove($member)
Note that you will not get an error if there is no such member (because Remove allows $null, again in a rather bizarre oversight), so you may want to check for $member -eq $null if you want to verify that.
Definitely do not use Remove-LocalGroupMember -- that cmdlet is part of a completely different module and removes members from local Windows groups, not SSAS roles.

PowerShell SetAccessRule for ACL failing

The script I've done creates a folder and security groups that is later added to the folder in question with special permissions. The problem is that the script fails on "$acl.SetAccessRule($rule_modify)" and complains about the identity.
Error:
"Exception calling "SetAccessRule" with "1" argument(s): "Some or all identity references could not be translated."
If I run the script row by row by simply using copy/paste from ISE into a regular PowerShell window everything goes through without errors using the same location and user.
This is the important bit that isn't working.
#Get ACL list
$acl = Get-Acl -Path $Path
$acl.SetAccessRuleProtection($false,$false)
#Add permission for modify
$set_modify = "INTRA\FIL_$($Department)_$($Group)_Modify", 'DeleteSubdirectoriesAndFiles, Write, ReadAndExecute, Synchronize', 'ContainerInherit, ObjectInherit', 'None', 'Allow'
$rule_modify = New-Object -TypeName System.Security.AccessControl.FileSystemAccessRule -ArgumentList $set_modify
$acl.SetAccessRule($rule_modify)
$acl | Set-Acl $path
I had basicly the same issue but with "AddAccessRule".
$Acl.AddAccessRule($Ar)
My Script failed with the above mentioned error.
Just as Patrik Persson mentioned, in my case it was also because AD was slow on showing new groups and the Ar could not be added until the security group showed up in my AD.
So i added a try/catch with a do/until loop to my script which i want to share:
do {
$check = 'ok'
try {
$Acl.AddAccessRule($Ar)
} catch [System.Management.Automation.RuntimeException] {
$_.Exception.Message
$check = 'error'
Start-Sleep -Seconds 2
}
} until (
$check -eq 'ok'
)
So the loop continues until AD registers the security group correctly. After that the Ar is added to the acl and my script continues as expected.
I have found the solution and it fails because ActiveDirectory is too slow to recognize that the security group is created propery before adding it to the ACL.
Solution I went with was to add a 10 second sleep after groups and folder was created and it now works as intended.
You might want to expand all the strings you're using to build your security group name into a clean variable - I find that can be touchy. Make sure that $secgroup contains the right string value when you've constructed it.
You can create the rule together with the object type on one line as well.
$secgroup = "INTRA\FIL_$($Department)_$($Group)_Modify"
$modifyRule = New-Object System.Security.AccessControl.FileSystemAccessRule($secgroup,'DeleteSubdirectoriesAndFiles, Write, ReadAndExecute, Synchronize','ContainerInherit, ObjectInherit','None','Allow')
By the way, if essentially you want your users to have Modify rights on the contents without being able to delete the parent folder, it should work if you set the InheritOnly flag (I haven't tested it).
$modifyRule = New-Object System.Security.AccessControl.FileSystemAccessRule($secgroup,'Modify, Synchronize', 'ContainerInherit, ObjectInherit','InheritOnly','Allow')
Had a similar issue while creating shares on remote file servers.
At first, I'd used the proposed solution (start-sleep), but it was not good enough as it significantly increased the time consumed while processing a lot of shares.
It turns out that you may use SID while defining your ACE and operation is instant:
$TempSID = (Get-ADGroup "FIL_$($Department)_$($Group)_Modify").SID
$PermissionModify = "Write, Read, ListDirectory, ReadAndexecute, DeleteSubdirectoriesAndFiles"
$Inherit = [system.security.accesscontrol.InheritanceFlags]"ContainerInherit, ObjectInherit"
$Propagation = [system.security.accesscontrol.PropagationFlags]"None"
$Type = "Allow"
$modifyRule = New-Object System.Security.AccessControl.FileSystemAccessRule($TempSID, $PermissionModify, $Inherit, $Propagation, $Type)
Seems that Active Directory needs some time (in my case 2 seconds) to translate SID to the group name (in DOMAIN\groupName format).
Another case: I have got the error Exception calling SetAccessRule... because I have set the account without the domain, so - with the question's example - I have put .\FIL_$($Department)_$($Group)_Modify instead of INTRA\FIL_$($Department)_$($Group)_Modify.

Setting a DateTime to $null/empty using PowerShell and the SCSM cmdlets

I'm currently trying to sync additional attributes from the AD (Active Directory) for user objects in SCSM (System Center Service Manager) using a PowerShell script.
The extension I wrote for this, includes an attribute for the expiration date of a AD user account (DateTime value, named DateTimeAttribute in the example) if the user account doesn't expire it should be empty/null.
Using Import-SCSMInstance, which should be similar to a CSV import, it kind of works by passing "null" for the field. The problem is that Import-SCSMInstance seems to be quite unreliable and it doesn't offer any kind of information of why it works or doesn't work. Using Update-SCSMClassInstance seems to work a lot better but I can't figure out a way to clear the field using this and even using [DateTime]::MinValue will result in an error, stating that it's an invalid value.
So would anyone have an idea on how to clear the value using Update-SCSMClassInstance or figure out why Import-SCSMInstance might or might not work?
A simple example for this could look like the following:
$server = "<ServerName>"
$extensionGuid = "<GUID>"
Import-Module 'C:\Program Files\System Center 2012 R2\Service Manager\Powershell\System.Center.Service.Manager.psd1'
New-SCManagementGroupConnection -ComputerName $server
$extensionClass = Get-SCSMClass -Id $extensionGuid
$scsmUserObject = Get-SCSMClassInstance -Class $extensionClass -Filter 'UserName -eq "<User>"'
# Error
$scsmUserObject.DateTimeAttribute = ""
# Works but fails on Update-SCSMClassInstance
$scsmUserObject.DateTimeAttribute = $null
$scsmUserObject.DateTimeAttribute = [DateTime]::MinValue
# Works
$scsmUserObject.DateTimeAttribute = "01-01-1970"
Update-SCSMClassInstance -Instance $scsmUserObject
It seems that you can't clear a date once it's filled. When you write $null, it sets the date to 1-1-0001 01:00:00, which is an invalid date causing the update-scsmclassinstance to fail.
What we have set as a user's AD property when we don't want something to expire, is 2999-12-31 (yyyy-MM-dd). Perhaps this could help, although it's not directly what you asked for...
Also, you can use the pipeline to update a property in SCSM:
Get-SCSMClassInstance -Class $extensionClass -Filter 'UserName -eq "<User>"' | % {$_.DateTimeAttribute = <date>; $_} | update-scsmclassinstance
It doesn't look like it's currently possible to clear custom date attributes using the PowerShell cmdlets.