I can run the following command from my desktop out of my HQ domain but I am unable to create a Remote Powershell session.
I have searched many posts and can not determine how to resolve this.
$TargetServer = 'RemoteComputer'
Get-WmiObject -Namespace "root\cimv2" -Class Win32_Process -Impersonation 3 -Credential RemoteDomain\username -ComputerName $TargetServer
Need this to work, please note that if i am logged into a management server in the remote domain the command works with my default nt permissions.:
$TargetServerSession = New-PSSession -Credential RemoteDomain\username -ComputerName $TargetServer
What's the Error you are getting? Maybe it's a credential thing, I kind of miss the get-credential part.
YourUser needs local Admin rights on the remote machine and you need to provide a password for the session.
You enter a PSSession by doing this:
# * Define name of remote machine
$TargetServer = "RemoteComputer"
# * Get a password prompt for the user 'YourUser' and store the creds
$Cred = (Get-Credential YourDomain\YourUser)
# * Create a PSSession for the Remote Computer using the Credentials you just provided
$PSSession = new-pssession -Computer $TargetServer -Credential $Cred
# * Enter the session
Enter-PSSession $PSSession
If this code is not working, then we need more infos.
Related
I need to run a common PowerShell command to trigger a Group Policy Update "gpupdate" on a remote computer out of a workflow.
The workflow runs in a system user context, which do not have the local admin permissions on the clients to force a remote "gpupdate".
For that reason, I import a PowerShell credential secure string with "Import-CliXml" to run that statement in scope of a user which is local admin on the clients.
But, the command I want to use, don't support the native credential parameter. And I need to use a parameter for the remote client.
Invoke-GPUpdate -Computer $client -RandomDelayInMinutes 0
I tried many approches from the internet, but it won't work for me:
Start-Process powershell.exe -Credential $credentials -ArgumentList $ProcessCommand -WorkingDirectory $env:windir -NoNewWindow -PassThru
Start-Process powershell.exe -wait -Credential $credentials -ArgumentList "-command &{Start-Process Powershell.exe -argumentlist '$($cmnd)' -verb runas -wait}"
If I test to send the remote gpupdate out of a PowerShell console started with a user which is local admin on the remote client, it works.
Did anyone has a solution for this problem?
Many thanks!
When I connect to remote computers using PowerShell to execute commands on those computers I normally run the following. I've left an example of my code for you to use to execute Invoke-GPUpdate
#Local Host Computer
#$RequestingServer = $env:COMPUTERNAME
#Server List From Text File
#$ServerList = Get-Content 'C:\temp\servicetest\servers.txt'
#Server List In Script
$ServerList = 'Computer1','Computer2','Computer3','Computer4'
#Domain Admin Account
[STRING]$DomainAccountName = (whoami)
[STRING]$DomainAccountName = $DomainAccountName.Split("\")[1]
[STRING]$DomainAccountPassword = "Password01" #Obviously Change Password
$DomainAccountSecurePassword = $DomainAccountPassword | ConvertTo-SecureString -AsPlainText -Force
$DomainCredentials = New-Object System.Management.Automation.PSCredential -ArgumentList $DomainAccountName, $DomainAccountSecurePassword
#Local Server Admin Account
[STRING] $LocalUser = "Administrator" #Obviously Change Account
[STRING] $LocalPassword = "Password01" #Obviously Change Password
$LocalSecurePassword = $LocalPassword | ConvertTo-SecureString -AsPlainText -Force
$LocalCredentials = New-Object System.Management.Automation.PSCredential -ArgumentList $LocalUser, $LocalSecurePassword
#If running on multiple computers / servers etc. - - See Lines 5 and 8
ForEach($ComputerName in $ServerList) {
#Update Windows Something Locally - See Line 2
#$DomainSession = New-PSSession -Computername $RequestingServer -Credential $DomainCredentials
#Update Windows Something Remotely - See Lines 5 and 8
$DomainSession = New-PSSession -Computername $ComputerName -Credential $DomainCredentials
Invoke-Command -Session $DomainSession -ScriptBlock {
#Some commands need the computername currently using localhost...
$GPUpdateServer = $Using:ComputerName
#$GPUpdateServer = $Using:RequestingServer
# enter code of what you plan to do...
Invoke-GPUpdate -Computer $GPUpdateServer -RandomDelayInMinutes 0
}
} End of ForEach Statement
#If running on multiple computers / servers etc. - - See Lines 5 and 8
ForEach($ComputerName in $ServerList) {
#Update Windows Something Locally - See Line 2
#$LocalSession = New-PSSession -Computername $RequestingServer -Credential $LocalCredentials
#Update Windows Something Remotely - See Lines 5 and 8
$LocalSession = New-PSSession -Computername $ComputerName -Credential $LocalCredentials
Invoke-Command -Session $LocalSession -ScriptBlock {
#Some commands need the computername currently using localhost...
$GPUpdateServer = $Using:ComputerName
#$GPUpdateServer = $Using:RequestingServer
# enter code of what you plan to do...
Invoke-GPUpdate -Computer $GPUpdateServer -RandomDelayInMinutes 0
}
} End of ForEach Statement
Facing this problem more in detail, I tested the approach above with the remote PowerShell session. This needs some more preparation in domain for deploying all necessary GPO settings to all clients to make WinRM work.
The remote PowerShell approach works, but I found out that the Invoke-GPUpdate command is only available on clients which have RSAT installed. So only works on a few in clients in IT department.
$Session = New-PSSession -Computername $clientname -Credential $domainAccountWithLocalAdminRights
Invoke-Command -Session $Session -ScriptBlock { Invoke-GPUpdate -Computer $env:ComputerName -RandomDelayInMinutes 0 }
$Session | Remove-PSSession
I switched over to a different approach which worked for me without using remote PS sessions. Completely silent on the client, you will find the triggered gpupdates only in Windows event viewer.
Invoke-Command -ComputerName $clientname -ScriptBlock { gpupdate } -Credential $domainAccountWithLocalAdminRights
I have a centralized server from which i can run the following PowerShell command to get the clustergroup of cluster servers.
Enter-pssession -computername (ip-address) -credential (domain user)
And it prompts me to enter password then i get the session and execute
get-clustergroup
Okay till this it is fine.
Now i wanted to make this fully automated by converting in to a PowerShell script
The following commands works well when i run it in Powershell ISE and gets me the output of get-clustergroup
$password = ConvertTo-SecureString "password" -AsPlainText -Force
$user = "domain\user"
$cred = New-Object System.Management.Automation.PSCredential ($user,$password)
Enter-PSSession -ComputerName IP.Add.RE.SS -Credential $cred
get-clustergroup
but when i save the about script and run with PowerShell i get the following error.
get-clustergroup: the cluster service is not running
I want to automate the process by writing script to get get-clustergroup output of four cluster servers.
i am new to PowerShell scripting. how can i save the output?
Instead of creating a session to the other server, you can run the following which will run the command on the remote computer and return the output to your console:
Invoke-Command -ComputerName <IPAddress> -ScriptBlock { Get-ClusterGroup } -Credential $cred
You can store that output into a variable if you wish for future retrieval.
Since -ComputerName can accept an array object, you can modify your command to include all four of your servers. Below shows how to use all of your computer names and store the output in the variable $Output:
$Output = Invoke-Command -ComputerName "Server1","Server2","Server3","Server4" `
-ScriptBlock {Get-ClusterGroup} -Credential $cred
$Output
Your computer names could also be stored in a variable as an array. Then that variable can be used in your -ComputerName parameter:
$Computers = "Server1","Server2","Server3","Server4"
Invoke-Command -ComputerName $Computers -ScriptBlock { Get-ClusterGroup } -Credential $cred
See Invoke-Command for more information.
I struggle a lot of time regarding this problem now and asked already in another forum, which helped to approach to the solution but finally I didn't achieve it.
I "simply" need to gather information about hosts inside clouds here in our company with the help of a powershell script. You can reach the clouds via a jumphost from the local network, the jumphost is a part of the cloud as well. Then from the jumphost you can reach all cloudhosts.
So I have tried this with 2 pssessions and used invoke-command (same password for jumphost and cloudhost):
$cred = Get-Credential ad\username -Message "Please insert the password for the jumphost and the cloudhost"
$session = New-PSSession -ComputerName jumphost -Credential $cred
$cldhost = Read-Host "Please insert the name of the cloudhost"
$script = {
Param (
$Credential,
$cloudhost
)
$ses = New-PSSession -ComputerName $cloudhost -Credential $Credential
Invoke-Command -Session $ses -ScriptBlock { Get-ChildItem C:\ }
Remove-PSSession $ses
}
Invoke-Command -Session $session -ScriptBlock $script -ArgumentList $cred, $cldhost
Remove-PSSession $session
But this always gives me the output of C:\ of the jumphost and not of the cloudhost.
In the other forum I was advised to use credssp or delegated sessions.
CredSSP is not possible here, because I get the error that the SPN is missing in the AD-account and I'm not allowed to add one and the delegated sessions don't help me, because I have admin rights on the jumphost and the cloudhost and don't need to delegate something.
But anyway I think it's not a problem of the credentials, because I get no "Access denied" error or something else and enter-pssession to the jumphost and from there invoke-command to the cloudhost works without a problem, but I can't use this in a script.
Something seems to be wrong in the logic of the nested pssessions code...
Do you have any idea to make this work proper here?
delegated admin rights:
http://blogs.technet.com/b/heyscriptingguy/archive/2014/04/03/use-delegated-administration-and-proxy-functions.aspx
CredSSP:
http://blogs.technet.com/b/heyscriptingguy/archive/2012/11/14/enable-powershell-quot-second-hop-quot-functionality-with-credssp.aspx
Thanks a lot,
Marc
By the way:
I've tried to use CredSSP, because it is recommend to use it for second hops:
Enable-WSManCredSSP -Role Client -DelegateComputer jumphost -Force
$cred = Get-Credential ad\username -Message "Please insert the password for the jumphost and the cloudhost"
$session = New-PSSession -ComputerName jumphost -Credential $cred
Invoke-Command -Session $session -ScriptBlock {Enable-WSManCredSSP -Role Server –Force; Set-Item wsman:\localhost\client\trustedhosts -value localcomputer -Force; Restart-Service winrm -Force}
$session2 = new-PSSession -ComputerName jumphost -Credential $cred -Authentication Credssp
After entering this last command I get the following error:
The WinRM client cannot
process the request. A computer policy does not allow the delegation of the user credentials to the target computer because the
computer is not trusted. The identity of the target computer can be verified if you configure the WSMAN service to use a valid
certificate using the following command: winrm set winrm/config/service '#{CertificateThumbprint="<thumbprint>"}' Or you can
check the Event Viewer for an event that specifies that the following SPN could not be created: WSMAN/<computerFQDN>. If you find
this event, you can manually create the SPN using setspn.exe . If the SPN exists, but CredSSP cannot use Kerberos to validate
the identity of the target computer and you still want to allow the delegation of the user credentials to the target computer,
use gpedit.msc and look at the following policy: Computer Configuration -> Administrative Templates -> System -> Credentials
Delegation -> Allow Fresh Credentials with NTLM-only Server Authentication. Verify that it is enabled and configured with an SPN
appropriate for the target computer. For example, for a target computer name "myserver.domain.com", the SPN can be one of the
following: WSMAN/myserver.domain.com or WSMAN/*.domain.com. Try the request again after these changes. Weitere Informationen
finden Sie im Hilfethema "about_Remote_Troubleshooting".
In Zeile:1 Zeichen:13
+ $session2 = new-PSSession -ComputerName jumphost -Credential $cred -Aut ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportE
xception
+ FullyQualifiedErrorId : -2144108124,PSSessionOpenFailed
I do not know what to avtivate further to use CredSSP, anyway it would be better to make it work without CredSSP.
Ok additionally:
It should work with delegated sessions, I have tried the following:
on the Jumphost:
Register-PSSessionConfiguration -Name PowerShell.Session -SessionType DefaultRemoteShell -AccessMode Remote -RunAsCredential 'ad\username' -ShowSecurityDescriptorUI –Force
And then granted access to the user 'ad\username' (Invoke and Read access).
After that I was able to use the session configuration on the jumphost with the follwoing commands:
$cred = Get-Credential ad\username -Message "Please enter the password for jumphost"
$session = New-PSSession -ConfigurationName PowerShell.Session -ComputerName jumphost -Credential $cred
So the session was connected and I entered my other commands:
$cldhost = Read-Host "Please enter the cloudhost name"
$script = {
Param (
$Credential,
$Hostname2
)
$ses = New-PSSession -ComputerName $Hostname2 -Credential $Credential
Invoke-Command -Session $ses -ScriptBlock { Get-ChildItem C:\ }
Remove-PSSession $ses
}
Invoke-Command -Session $session -ScriptBlock $script -ArgumentList $cred, $cldhost
Remove-PSSession $session
Unfortunately I get the output of Get-ChildItem C:\ of the jumphost again and not the output of the cloudhost...
Do you have any further idea? Is maybe the $script{} part somewhere wrong?
Finally it works:
$cred = Get-Credential ad\username -Message "Please insert the password for the jumphost"
$session = New-PSSession -ComputerName jumphost -Credential $cred
$cldhost = Read-Host "Please insert the cloudhost name"
$script = {
Param (
$Credential,
$Hostname2
)
$ses = New-PSSession -ComputerName $Hostname2 -Credential $Credential
Invoke-Command -Session $ses -ScriptBlock { Get-ChildItem C:\ }
Remove-PSSession $ses
}
Invoke-Command -Session $session -ScriptBlock $script -ArgumentList $cred, $cldhost
Remove-PSSession $session
This means I do not need the delegated sessions or CredSSP. But anyway, it works as well by manual setting the delegated configuration on the jumphost and then adding the users who should be able to connect to the session configuration in the pop-up -ShowSecurityDescriptorUI and delete the default users "interactive user" and local administrators:
Register-PSSessionConfiguration -Name PowerShell.Session -SessionType DefaultRemoteShell -AccessMode Remote -RunAsCredential 'ad\username' -ShowSecurityDescriptorUI –Force
If you now connect to the session configuration with a above specified user the commands will be executed in context of the user you have specified under -RunAsCredential.
It is also working directly from the local host, but you have to use -SecurityDescriptorSddl and this requires a function which deletes the default credentials for the session configurations and adds the new credential with ACLs automatically...means a lot of work.
Thanks a lot for the help!
Marc
I want to start/stop apache and mysql services on remote machine by using powershell version 2.0 (Windows Server 2008). I found syntax for remote execution as follow:
(Get-WmiObject -Computer myCompName Win32_Service -Filter "Name='myServiceName'").InvokeMethod("Stop-Service",$null)
But I have to provide credentials (DOMAIN_NAME\USERNANE and PASSWORD) also for this exceution. I am new to powershell and need help for correct syntax (example will be easy to understand and implement).
Get-WMIObject accepts the -Credential parameter. You shouldn't be keeping your credentials in plain text in your script, so you'll want to prompt for them.
$creds = get-credential;
(Get-WmiObject -Computer myCompName Win32_Service -Filter "Name='myServiceName'" -credential $creds).InvokeMethod("Stop-Service",$null)
If you have PSRemoting enabled on the remote system, you can do this without WMI.
$creds = get-credential;
Invoke-Command -computername myCompName -credential $creds -scriptblock {(get-service -name myServiceName).Stop()};
Update based on comments
Since you're running this as a scheduled job, you should not be storing or prompting for credentials at all. Configured the scheduled job itself (via Scheduled Tasks) to run under the required user account, then either of the following should work:
# Your original code
(Get-WmiObject -Computer myCompName Win32_Service -Filter "Name='myServiceName'").InvokeMethod("Stop-Service",$null)
# If you have remoting enabled
Invoke-Command -computername myCompName -scriptblock {(get-service -name myServiceName).Stop()};
I am successfully retrieving some information from Windows 2000 machines using the Get-WmiObjet cmdlet. These machines are not part of our domain so I am using the -Credential parameter to pass local administrator credentials.
I am now trying to run several WMI queries in parallel using Start-Job but I can't get even one query to work.
When I run the following:
Start-Job -initializationscript {$cred = get-credential -credential administrator} -scriptblock {gwmi win32_computersystem -ComputerName 10.1.2.3 -Credential $cred}
a job is created, I am prompted for the credentials, but the job never completes, its state is always "Running".
Of course:
C:\>$cred = Get-Credential -credential administrator
C:\>gwmi win32_computersystem -ComputerName 10.1.2.3 -Credential $cred
works just fine.
How do I get Get-WmiObject to run successfully within Start-Job with alternate credentials?
Thanks for your help.
Try this:
$cred = Get-Credential -Credential Administrator
Start-Job -scriptblock {Param ($cred) gwmi win32_computersystem -ComputerName 10.1.2.3 -Credential $cred} -ArgumentList $cred
Looks like the background job is blocked for input and has been running forever for that reason.