Invoke-Command with parameter computername on local device - powershell

I'm writing a script that needs to be used on multiple devices.
This script uses an Invoke-command to connect to a specified server.
This script also has to be run on this same server.
Invoke-Command -ComputerName $Server -Credential $Cred -ScriptBlock {Write-Host "test"}
It's no problem to run this script from remote devices but when running it on the server used in $Server I get the following error
Connecting to remote server DC01 failed with the following error message : Access is denied. For more information, see the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (DC01:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : AccessDenied,PSSessionStateBroken
My question is if there is a possibility to fix it or if I have to write an if/else to check on which server it's running atm.

Related

Running Powershell script using inline admin credentials to start and stop windows services

I have access as an admin on a machine and I have to Start, Stop and Restart some of the window services using the Powershell script. We don't want to have UAC prompt while running the script because only one user would have access to that machine. Also due to some specific requirements, we have to have run that script file by adding the admin credentials inside it.
Along with other solutions I have tried so far, the one close to what I am looking for is as follows
$username = "Domain\user"
$password = ConvertTo-SecureString "myPassword" -AsPlainText -Force
$psCred = New-Object System.Management.Automation.PSCredential -ArgumentList ($username, $password)
Set-Service -Name Spooler -Status Running -PassThru -Credential $psCred
But I am getting following error.
Set-Service : A parameter cannot be found that matches parameter name
'Credential'. At line:6 char:53
+ ... t-Service -Name Spooler -Status Running -PassThru -Credential $psCred
+ ~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (:) [Set-Service], ParameterBindingException
+ FullyQualifiedErrorId : NamedParameterNotFound,Microsoft.PowerShell.Commands.SetServiceCommand
Update 1 (Trying suggestion)
Invoke-Command -credential $psCred -command {Set-Service -Name Spooler -Status Running -PassThru} -computername myComputerName
[myComputerName] Connecting to remote server myComputerName failed
with the following error message : The client cannot connect to the
destination specified in the request. Verify that the service on the
destination is running and is accepting requests. Consult the logs and
documentation for the WS-Management service running on the
destination, most commonly IIS or WinRM. If the destination is the
WinRM service, run the following command on the destination to analyze
and configure the WinRM service: "winrm quickconfig". For more
information, see the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (myComputerName:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : CannotConnect,PSSessionStateBroken
Update 2
I had to enabled PSRemoting on machine using command Enable-PSRemoting -Force -SkipNetworkProfileCheck so Invoke-Command can execute but after repeating the command Invoke-Command -credential $psCred -command {Set-Service -Name Spooler -Status Running -PassThru} -computername localhost I got following error
[localhost] Connecting to remote server localhost failed with the
following error message : Access is denied. For more information, see
the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (localhost:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : AccessDenied,PSSessionStateBroken
Running the same set of command in elevated powershell window is working fine.
Can you please guide me in the right direction considering I am newbie in the Powershell world.
As mentioned in the official documentation of Set-Service
Can you try like this?
$Cred = Get-Credential
$hostname = "$env:computername.$env:userdnsdomain"
Write-Host $hostname
Invoke-Command -ComputerName $hostname -Credential $Cred -ScriptBlock{ Start-Service -Name Spooler}
Also if you don't want to prompt for the credentials then you can store the credentials in the Windows credentials manager and get it from their in your PowerShell script. Refer to this answer for using credential manager with PowerShell

Powershell VSCode invoke-command from localhost different user for SCCM

Because VSCode is not able to run a powershell console and debug it as a different user i am trying to get arround it with invoked credentials like this:
Start-Service -Name "WinRM"
$cred = Get-Credential -Credential domain\myuser
Invoke-command -Credential $cred -Computer "localhost" -scriptblock {
Import-Module "$($ENV:SMS_ADMIN_UI_PATH)\..\ConfigurationManager.psd1"
Set-Location 'XXX:' # my sccm site code
Import-CMComputerInformation -CollectionName "All Systems" -ComputerName "TestComputer" -MacAddress "00:00:00:00:00:69"
}
If i start it in the debugger of VSCode (F5) it starts but cant connect then to the SCCM Server infrastructure. Could someone help me to solve this issue?
Error:
Cannot find drive. A drive with the name 'XXX' does not exist.
+ CategoryInfo : ObjectNotFound: (XXX:String) [Set-Location], DriveNotFoundException
+ FullyQualifiedErrorId : DriveNotFound,Microsoft.PowerShell.Commands.SetLocationCommand
+ PSComputerName : localhost
This command cannot be run from the current drive. To run this command you must first connect to a Configuration Manager drive.
+ CategoryInfo : DeviceError: (Microsoft.Confi...ormationCommand:ImportComputerInformationCommand) [Import-CMComputerInformation], InvalidOperationException
+ FullyQualifiedErrorId : CommandCannotExecuteFromCurrentDrive,Microsoft.ConfigurationManagement.Cmdlets.Oob.Commands.ImportComputerInformationCommand
+ PSComputerName : localhost
If i logoff from my machine and login with my admin credentials and execute everything in the invoke-command scriptblock it works.
As i am not allowed to work like this by our company policy's is there maybe a alternative way or something i can do to use the visual studio code debugger?
Have you logged onto the SCCM site server interactively with the credentials you are using and opened the console at least once? I believe this initial first opening is required before the drive is accessible remotely...

Access to password protected network share (double/second hop limitation)

This is about the famous double-hop limitation that looks trivial and has at least 10 workarounds but I cannot find even one that works for my setup.
Here is my environment: I have ~50 virtual machines on Windows 10, every VM runs on a separate hardware - we use virtual machines because our IT guys claim it's easier to maintain and physical ones, I personally dislike VMs but it's not something that depends on me.
We are on a non-domain environment, no Active Directory, we use a workgroup and every machine is administered individually.
My goal is to optimize PC management like installing software, registering/starting services and etc - I need to do that on all machines at once not to perform each task 50 times. I managed to run PowerShell remote relatively quickly but very soon I stuck on non being able to access any network resource that requires additional authentication (all our network shares requires LDAP authentication).
What I tried so far.
Re-authenticate from the session, described here:
$mappedDrive = #{
Name = "u"
PSProvider = "FileSystem"
Root = "\\bladefs\share2"
Credential = 'svetlozar.draganov'
}
Invoke-Command -ComputerName bw33 -ScriptBlock {
New-PSDrive #using:mappedDrive
Get-Content -Path \\bladefs\share2\text.txt
Get-PSDrive
Remove-PSDrive -Name "u"
Get-PSDrive
} -Credential render
What the above command does is to run a remote command via Invoke-Command that request two authentications, the first authentication is to connect to the machine bw33 then with a New-PSDrive command another authentication is sent to an already establishes session with bw33 to mount a network share with username and password. This sometimes on very rare occasions actually works, but I cannot pinpoint when and why it works and why in most of the cases doesn't work. Even though I'm executing absolutely the same PowerShell script a dozen of times it only works for a very small percentage of them the rest of them it just says this:
A specified logon session does not exist. It may already have been
terminated
+ CategoryInfo : InvalidOperation: (u:PSDriveInfo) [New-PSDrive], Win32Exception
+ FullyQualifiedErrorId : CouldNotMapNetworkDrive,Microsoft.PowerShell.Commands.NewPSDriveCommand
+ PSComputerName : bw33
Cannot find path '\\bladefs\share2\text.txt' because it does not exist.
+ CategoryInfo : ObjectNotFound: (\\bladefs\share2\text.txt:String) [Get-Content], ItemNotFoundException
+ FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.GetContentCommand
+ PSComputerName : bw33
I actually captured a working and non-working attempt on the video bellow:
https://drive.google.com/uc?id=1HYD8p-VkLYyIExZVWO_8qgpI2kmlUDgF
As you can see with first execution everything is fine PSDrive is mapped successfully and I can reach \bladefs\share2 network path but with second execution I got some errors.
Similar as the above but instead of mapping drive via PSDrive command mapping it via NET USE command with username and password.
Invoke-Command -ComputerName bw33 -Credential render -ScriptBlock {
net use x: \\bladefs\share2 /user:svetlozar.draganov password
Test-Path \\bladefs\share2
}
This, as the first, sometimes works but again it only works once, all subsequent execution leads to this error:
System error 1312 has occurred.
+ CategoryInfo : NotSpecified: (System error 1312 has occurred.:String) [], RemoteException
+ FullyQualifiedErrorId : NativeCommandError
+ PSComputerName : bw33
A specified logon session does not exist. It may already have been terminated.
Here is a video of another attempt that again captures working and non-working execution of that command:
https://drive.google.com/uc?id=1wP20sbmXMfWu4dvjsdF8REDWgNxiKAS-
Using CredSSP described here:
$session = New-PSSession -cn bw33 -Credential render -Authentication Credssp
Invoke-Command -Session $session -ScriptBlock {Test-Path \\bladefs\share2}
Although this is the most popular and insecure way to resolve this issue I decided to give it a try cause recommended options didn't work. Unfortunately I hit a brick with this approach as well, here are the errors:
New-PSSession : [bw33] Connecting to remote server bw33 failed with
the following error message : The request is not supported. For more
information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:12
+ $session = New-PSSession -cn bw33 -Credential render -Authentication ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : 50,PSSessionOpenFailed
Invoke-Command : Cannot validate argument on parameter 'Session'. The
argument is null or empty. Provide an argument that is not null or empty,
and then try the command again.
At line:2 char:25
+ Invoke-Command -Session $session -ScriptBlock {Test-Path \\bladefs\sh ...
+ ~~~~~~~~
+ CategoryInfo : InvalidData: (:) [Invoke-Command], ParameterBindingValidationException
+ FullyQualifiedErrorId : ParameterArgumentValidationError,Microsoft.PowerShell.Commands.InvokeCommandCommand
And respectively the video:
https://drive.google.com/uc?id=10tbAq6vvRsvT-1SGqOzvPgIPcM-MT8CJ
I had a somewhat similar issue to yours a while back, but I have a domain joined setup. That shouldn't make to much difference as long as you have the credentials. In your example you don't seem to be using an actual PSCredential object, which might be you issue. If you can use the same credential to connect to the remote system and then back to your share then this should work:
$Password = Read-Host -Prompt 'Enter Password' -AsSecureString
$Credential = New-Object -TypeName PSCredential('username',$Password)
$mappedDrive = #{
Name = "u"
PSProvider = "FileSystem"
Root = "\\bladefs\share2"
Credential = $Credential
}
Invoke-Command -ComputerName bw33 -Credential $Credential -ScriptBlock {
New-PSDrive #Using:mappedDrive
# Do Stuff...
Remove-PSDrive -Name "u"
}

Powershell invoke-command access is denied error - not a double hop

I am building a new network with Server 2016 and a handful of Windows 10 clients. I have run Enable-PSRemoting successfully on all the clients. From the server I run:
Invoke-Command -ComputerName $computer -Scriptblock {'test'}
which results in
[computer] Connecting to remote server failed with the following error message : Access is denied.
+ CategoryInfo: OpenError: (computer:string) [], PSRemotingTransportException
+ FullyQualifiedErrorId: AccessDenied,PSSessionStateBroken
Because I am only having the remote computer process a string I believe this is not related to the common double hop issue I see in the forums.
I can also run WinRM successfully on the client machines:
Test-WSMan $computer
If anyone has insight into other causes of the access denied error I would greatly appreciate some ideas on where to look.
Thanks.
You need to be in Remote management users group on target machine (if it's local account). This will be enough for Invoke-Command access
I guess it is a permission problem. Try to create PsSession object via
$s = New-PSSession -ComputerName "you_computer_name" -Credential(Get-Credential)
Call Invoke-Command with the beforehand created session object:
Invoke-Command -Session $s -ScriptBlock { Get-Service }
This should return a list of all services of remote machine.
Hope that helps.

"Access denied" error when trying to enumerate drives on remote computers

I am trying to run a PowerShell command to get the total disk space of all drives for all our remote servers. When I run the command I am getting the error below. I have a text file which has names of the servers and I have also confirmed that WinRM is configured and is running.
$Servers = Get-Content "C:\users\anorris\desktop\DR\servers1.txt"
foreach ($s in $Servers) {
Invoke-Command -ComputerName $s {Get-PSDrive}
}
Error:
[ahv-a2acortst02] Connecting to remote server failed with the following error
message : Access is denied.
For more information, see the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (:) [], PSRemotingTransportException
+ FullyQualifiedErrorId : PSSessionStateBroken
Agreed that the message 'Access is denied' is a dead giveaway that you don't have access.
I would create a credential variable and make sure it is a credential that has rights to the remote system.
$Creds = Get-Credential
then change your code to the following (I added the -scriptblock and the bolded text
$Servers = Get-Content "C:\users\anorris\desktop\DR\servers1.txt"
foreach ($s in $Servers) {
Invoke-Command -ComputerName $s -ScriptBlock {Get-PSDrive} -Credential $creds
}