Today we need to resolve double hop issue with PowerShell.
But it is failed when we do following try:
Machines: client1, server1, networkpath
One client1 run following:
$session = New-PSSession -Computer server1 -Authentication Credssp -Credential "username"
Following error thrown:
New-PSSession : [server1] Connecting to remote server server1 failed with the
following error message : The WinRM client cannot process the request. The
authentication mechanism requested by the client is not supported by the server
or unencrypted traffic is disabled in the service configuration. Verify the
unencrypted traffic setting in the service configuration or specify one of the
authentication mechanisms supported by the server. To use Kerberos, specify the
computer name as the remote destination. Also verify that the client computer
and the destination computer are joined to a domain. To use Basic, specify
the computer name as the remote destination, specify Basic authentication and
provide user name and password. Possible authentication mechanisms reported by
server: Negotiate For more information, see the about_Remote_Troubleshooting
Help topic.
At line:1 char:12
+ $session = New-PSSession -Computer server1 -Authentication Credssp -Creden ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotin gTransportException
+ FullyQualifiedErrorId : AccessDenied,PSSessionOpenFailed
We have done following configuration:
Client1:
Enable-WSManCredSSP -Role Client -DelegateComputer Server1
Server1:
Enable-WSManCredSSP -Role Server
All servers are in workgroup.
Following suggestions from Resolve Double-Hop Issue in PowerShell Remoting
following steps can fix the err
Run gpedit.msc on client.
Expand to Local Computer Policy -> Computer
Configuration -> Administrative Templates -> System -> Credentials
Delegation.
Double click Allow Delegating Fresh Credentials with NTLM-only Server Authentication.
Enable Allow Delegating Fresh Credentials.
Click Show... and add wsman/Server1.
Click several OK to close the popup dialogs.
Now we can run following script successful on client:
$session = New-PSSession -Computer server1 -Authentication Credssp -Credential "username"
Enter-PSSession $session
Test-Path "NetWorkPath"
Posting this solution in case someone is still having an issue with a simple resolution to DoubleHop without using CredSSP.
Try this out:
https://www.powershellgallery.com/packages/Invoke-PSSession
It Invokes a PSSession, then Registers a PSSessionConfiguration with the Credentials that you provided. Basically providing the credentials for that DoubleHop
Related
The error:
New-PSSession : [{Public IP of my remote server}] Connecting to remote server
{Public IP of my remote server} failed with the following error message :
Access is denied. For more information, see the about_Remote_Troubleshooting
Help topic.
At C:\Scripts\Test.ps1:24 char:12
+ $Session = New-PSSession -Computer $target -Authentication Credssp -C ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : AccessDenied,PSSessionOpenFailed
The "about_Remote_Troubleshooting" seems to be referring to this post which I've tried to follow along, but without luck.
I have a scripting server (Server A) that I'm trying to have manage a remote DC with a different hosting company.
DISCLAIMER: Since I've been failing miserably so far, I'm trying to set my configuration to be as wide-open as possible (AKA: temporarily unsecure), so that I can just see it working and then work backwards, tightening my security - as much as I can given that I'm being tasked with CredSSP in the first place... Also, I'm way over my head in this and very new to Powershell. With that in mind...
Configuration I've done on Server A:
Set-Item WSMan:\localhost\Client\TrustedHosts -Value * -Force
Set-Item WSMan:\localhost\Shell\MaxMemoryPerShellMB -Value 0 -Force
Enable-PSRemoting
Set-ExecutionPolicy Unrestricted
Enable-WSManCredSSP –Role Client –DelegateComputer *
Configuration I've done on Server B:
Enable-PSRemoting
Enable-WSManCredSSP –Role Server
And for kicks, on both machines, I've run gpedit and went under Local Computer Policy → Computer Configuration → Administrative Templates → System → Credentials Delegation... enabled "Allow delegating fresh credentials" and "Allow delegating fresh credentials with NTLM-only server authentication" and added * and wsman/* to the servers list (and a few other possible combinations of IP or computer names for good measure).
So, I can send remote commands to Server B without CredSSP:
This works:
$cred = New-Object System.Management.Automation.PSCredential $username, $securePassword
Invoke-Command -ComputerName $target -Credential $cred -ScriptBlock {
Write-Host $env:computername | Select-Object
}
(Outputs name of Server B)
But if I pass that same $cred into a New-PSSession with CredSSP, that is where the error above occurs.
$Session = New-PSSession -Computer $target -Authentication Credssp -Credential $cred
Server A is able to use CredSSP with a different Domain Controller (in the same network/hosting company). Every article I've gone through seems to lead me to believe that what I've done should work in both cases... What am I missing?
I am trying to use CREDSSP on a New Server (Server C)
I have successfully setup credssp on Two Other Servers. (Server A to Server B)
I am now trying to connect from Server A to Server C using CREDSSP, but no matter what I do, I get the following error:
[SERVER_C.domain.edu] Connecting to remote server SERVER_C.domain.edu failed with the following error message : Access is denied. For more information, see the about_Remote_Troubleshooting Help topic.
+ CategoryInfo : OpenError: (SERVER_C.domain.edu:String) [], PSRemotingTransportException
+ FullyQualifiedErrorId : AccessDenied,PSSessionStateBroken
This is my query that works perfectly from Server A to Server B:
# Setting the Credentials to be used to sign into the Server B.
$pass = ConvertTo-SecureString "Password" -asplaintext -force
$mycred = new-object -typename System.Management.Automation.PSCredential -argumentlist "domain\user.service",$pass
#
#
# The Remote Execution Command. Fully Qualified Domain name is critical since we are using Credssp.
# Credssp is being used to resolve an issue with a double hop authentication issue. Other steps setup on each computer had to be completed before Credssp would work
Invoke-Command -ComputerName SERVER_B.domain.edu -command { C:\helloWorld.ps1 } -Authentication Credssp -Credential $mycred
I have double checked everything I can think of between Server C (New Server) and Server B (Old Server) and I cant find any reason why im getting the error.
I know that if I take out the CREDSSP part, The script works, except where a double hop is involved. So the Server is definitely connecting.
I made sure to run the following commands:
Enable-psremoting
Set-ExecutionPolicy -Scope localMachine -ExecutionPolicy RemoteSigned
Enable-WSManCredSSP -Role Client -DelegateComputer '*.reskit.org' –Force
Enable-WSManCredSSP -Role Server –Force
wsman
Also followed these steps: Use gpedit.msc and look at the following policy: Computer Configuration -> Administrative Templates -> System
-> Credentials Delegation -> Allow Delegating Fresh Credentials. 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. For more information, see the
about_Remote_Troubleshooting Help topic.
And as I mentioned, I know Server A is setup correctly, because I run the script above to Server B without issue.
Any suggestions would really be appreciated.
The only thought I have is that Server A and B are running Powershell 3 and Server C is running Powershell 5
I notice that the Enable-WSManCredSSP -Role Client command uses *.reskit.org instead of *.domain.eu.(?)
To me it's not completely clear which commands were run at the server or at the client, but look OK at first sight. I recently configured credssp also to solve the double hop problem, as follows:
On the server:
Enable-WSManCredSSP -Role Server -Force
Get-WSManCredSSP shows: The machine is not configured to allow delegating fresh credentials. This computer is configured to receive credentials from a remote client computer.
On the client:
winrm quickconfig
Enable-WSManCredSSP -role client *.mydomain.com
Get-WSMancredSSP shows:
The machine is configured to allow delegating fresh credentials to the following target(s): wsman/*.mydomain.com. This computer is not configured to receive credentials from a remote client computer.
My clientside script starts an explicit remote session via:
$session = New-PSSession -Computer $computerName -Credential $credential -Authentication Credssp
I have two Windows 7 Pro systems, one host system and one in a VM one the host system. I am trying to create a New PSSession on the host system to control the guest, both of which run Powershell 4.0.
As we have a DHCP setup in the office the first thing I do is establish the IP adress of each. Then I run the code below on both machines -
Set-Item wsman:\localhost\client\trustedhosts "$relevantIP" -Force
I then test that the systems are ready using WSMan on the host -
Test-WSMan $remoteIP
wsmid : http://schemas.dmtf.org/wbem/wsman/identity/1/wsmanidentity.xsd
ProtocolVersion : http://schemas.dmtf.org/wbem/wsman/1/wsman.xsd
ProductVendor : Microsoft Corporation
ProductVersion : OS: 0.0.0 SP: 0.0 Stack: 3.0
All this works perfectly well. At this point I used to create a new PSSession using the following
$credObject =
$Host.ui.PromptForCredential(
"Need credentials",
"Please enter password for the following IP $remoteIP",
$remoteUsername,
""
)
$remoteSession = New-PSSession -ComputerName $remoteIP -Credential $credObject
New-PSSession : [10.141.114.91] Connecting to remote server
10.141.114.91 failed with the following error message : The WinRM client cannot process the request. Default authentication may be used
with an IP address under the following conditions: the transport is
HTTPS or the destination is in the TrustedHosts list, and explicit
credentials are provided. Use winrm.cmd to configure TrustedHosts.
Note that computers in the TrustedHosts list might not be
authenticated. For more information on how to set TrustedHosts run
the following command: winrm help config. For more information, see
the about_Remote_Troubleshooting Help topic. At line:1 char:18
+ $remoteSession = New-PSSession -ComputerName "10.141.114.91" -Credential "SESA40 ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession],
PSRemotingTransportException
+ FullyQualifiedErrorId : CannotUseIPAddress,PSSessionOpenFailed
I have no idea why it has started doing this when trying to connect to the VM from the host system. I can create a new PSSession on the host machine from within the guest but no longer the other way around.
The error message says that "Default
authentication may be used with an IP address under the following conditions: ... the destination is in the TrustedHosts list and explicit credentials are provided." I have already added the correspoding IP to each WSMan TrustedHosts fields and provide explicit credentials.
Any help would be greatly appreciated as I am scratching my head trying to think of what could be wrong.
Update
After following the suggestion of one commentor I tried using different authentification methods.
$remoteSession = New-PSSession -ComputerName "10.141.114.91" -Credential "Test" -ErrorAction Stop -Authentication Basic
The WinRM client cannot process the request. Unencrypted traffic is currently
disabled in the client configuration. Change the client configuration and try the request again.
So I ran set-item WSMan:\localhost\Client\allowunencrypted $true on both machines. Now trying to get a PSSession gives the error
Get-PSSession -ComputerName "10.141.114.91" -Credential "Test" -Authentication Basic
The WinRM client cannot process the request. If the authentication scheme is
different from Kerberos, or if the client computer is not joined to a domain, then HTTPS transport must be used or the destination machine must be added to the TrustedHosts configuration setting.
** Update 2 **
In case anyone has the same problem and comes across this - my problem turned out to be a combination of a network fault and then with my playing around somehow creating a list of IP addresses for wsman:\localhost\client\trustedhosts which missed a comma between IP's.
I am trying to connect to a remote server but getting the following error
[my ip] Connecting to remote server "my ip" failed with the following error message : The WinRM client cannot process the request. Default authentication may be used with an IP address under the following conditions: the transport is HTTPS or the destination is in the TrustedHosts list, and explicit credentials are provided. Use winrm.cmd to configure TrustedHosts. Note that computers in the TrustedHosts list might not be authenticated. For more information on how to set TrustedHosts run the following command: winrm help config. For more information, see the about_Remote_Troubleshooting Help topic.
CategoryInfo : OpenError: (my ip:String) [], PSRemotingTransportException
FullyQualifiedErrorId : CannotUseIPAddress,PSSessionStateBroken
I am using this command to run a PowerShell script from my local machine on a remote PC
This is my script
$serverName = 'my ip'
$pwd = convertto-securestring "password12" -asplaintext -force
$cred=new-object -typename System.Management.Automation.PSCredential -argumentlist
".\Administrator",$pwd
Invoke-Command -computername $serverName {$("C:\_Projects\test.ps1")}
Edit:
my local pc and remote computer are not on the same domain . for example my local pc says mypc.test.local and remote computer says workgroup. Can some one help how to sort the above error by not changing the settings on remote computer, because its a UAT server.
You need to add -credential $cred to your Invoke-command command. You may also need to remove the .\ from the Administrator name--I don't have a workgroup server to test with, so I can't be sure if that will work.
Invoke-Command -credential $cred -computername $serverName {$("C:\_Projects\test.ps1")}
I can not remote into any machine to save my life! I have tried everything I can find. If anyone could troubleshoot or guide me, I'd appreciate it as this would be a great tool to add on my domain.
SETUP:
Client machine inside domain
Server machine inside or outside domain - Virtualized and utilized for WSUS Computername: wsustest
CLIENT SERVER MACHINE physical- computername: epizzi-pc
STEPS:
enable-pssremoting done! on all machines
trustedhosts configured with * or client machine added
Firewalls with public profile off just in case
Enter-PSSession -ComputerName wsustest -Credential wsustest\administrator
Enter-PSSession -ComputerName epizzi-pc -Credential epizzi-pc\administrador
Enter-PSSession : Connecting to remote server epizzi-pc failed with the following error message : WinRM cannot process the request. The following error with errorcode 0x80090311
occurred while using Kerberos authentication: There are currently no logon servers available to service the logon request.
Possible causes are:
-The user name or password specified are invalid.
-Kerberos is used when no authentication method and no user name are specified.
-Kerberos accepts domain user names, but not local user names.
-The Service Principal Name (SPN) for the remote computer name and port does not exist.
-The client and remote computers are in different domains and there is no trust between the two domains.
After checking for the above issues, try the following:
-Check the Event Viewer for events related to authentication.
-Change the authentication method; add the destination computer to the WinRM TrustedHosts configuration setting or use HTTPS transport.
Note that computers in the TrustedHosts list might not be authenticated.
-For more information about WinRM configuration, run the following command: winrm help config. For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ Enter-PSSession -ComputerName epizzi-pc -Credential epizzi-pc\administrador
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (epizzi-pc:String) [Enter-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : CreateRemoteRunspaceFailed
Enter-PSSession -ComputerName wsustest -UseSSL -Credential wsustest\administrator
*Enter-PSSession : Connecting to remote server wsustest failed with the following error message : WinRM cannot complete the operation. Verify that the specified computer name is
valid, that the computer is accessible over the network, and that a firewall exception for the WinRM service is enabled and allows access from this computer. By default, the WinRM
firewall exception for public profiles limits access to remote computers within the same local subnet. For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ Enter-PSSession -ComputerName wsustest -UseSSL -Credential wsustest\administrato ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (wsustest:String) [Enter-PSSession], PSRemotingTransportException
+ FullyQualifiedErrorId : CreateRemoteRunspaceFailed*
ERRORs:
I was receiving the same problem when remoting to a server and found this blog post very helpful - http://jeffgraves.me/2013/10/14/powershell-remoting/
For my specific case I did the following:
On the Local machine
winrm quickconfig (although this was already configured)
winrm s winrm/config/client '#{TrustedHosts="myservername.domain"}'
On the Remote machine
enable-psremoting -force
Set-PSSessionConfiguration -ShowSecurityDescriptorUI -Name Microsoft.PowerShell -Force
I got around this problem by using a fully qualified logon. Instead of "netbiosdomain\accountname", I used fqdn\accountname, as in Microsoft.com\myaccount in the get-credential prompt. May not work for everyone, but it's worth a shot.
This is how I do it. I use this on my scripts.
# This is only done once
Read-Host -AsSecureString | ConvertFrom-SecureString | Out-File
c:\Windows\temp\securepass.txt
# Setup credentials
$SecureString = Get-Content c:\Windows\temp\securepass.txt | ConvertTo-SecureString
$mycredentials = New-Object -TypeName System.Management.Automation.PSCredential
-ArgumentList "yourDomain\userID",$SecureString
# Open remote session:
$MyRSession = New-PSSession -ComputerName Computer1 -Credential $mycredentials
-Authentication default
# Use remote session:
Enter-PSSession $MyRSession
Get rid of -UseSSL. I enabled PSRemoting and had problems with using that. I guess I could look at it later but for now it doesn't matter.
If there is no trust between the client and server computers, you have to enable basic authentication on the server side. Do this by toggling the correct properties on the WSMAN: drive on the server. You'll obviously have to do this interactively on the console or via remote desktop, due to the chicken and egg problem :) Also, this may come into play too:
http://www.nivot.org/blog/post/2009/10/30/PowerShell20EnablingRemotingWithVirtualXPModeOnWindows7
I was getting that same error currently no logon servers available.
The issue was resolved by using instead of Domain\Username as credentials the user UPN or Username#Domain.
I have achieved a remote session with Enter-pssession command, had to follow these exact parameters
$creds = get-credential (the -credential parameter in enter-pssession does not work properly, thus u must previously enter the object at another variable)
Enter-pssession -computername wsustest -authentication Default -credentials $creds
i Also had to set both client and remote server in the trusted hosts wsman: space
another solution which surely wouldve worked but i havent tried, wouldve been setting https: which is harder to do.
thx to all, your comments certainly led to the solution!