To run powershell commands on a machine from a remote machine we have to add the remote machine to the trusted hosts list of the host machine.
I am adding machine A to machine B's trusted hosts using the following command :
winrm set winrm/config/client ‘@{TrustedHosts="machineA"}’
How to add more machines say machine C, machine D to trusted hosts list of machine B?
This question is related to
windows
powershell
hosts
winrm
Same as @Altered-Ego but with txt.file:
Get-Content "C:\ServerList.txt"
machineA,machineB,machineC,machineD
$ServerList = Get-Content "C:\ServerList.txt"
$currentTrustHost=(get-item WSMan:\localhost\Client\TrustedHosts).value
if ( ($currentTrustHost).Length -gt "0" ) {
$currentTrustHost+= ,$ServerList
set-item WSMan:\localhost\Client\TrustedHosts –value $currentTrustHost -Force -ErrorAction SilentlyContinue
}
else {
$currentTrustHost+= $ServerList
set-item WSMan:\localhost\Client\TrustedHosts –value $currentTrustHost -Force -ErrorAction SilentlyContinue
}
The "-ErrorAction SilentlyContinue
" is required in old PS version to avoid fake error message:
PS C:\Windows\system32> get-item WSMan:\localhost\Client\TrustedHosts
WSManConfig: Microsoft.WSMan.Management\WSMan::localhost\Client
Type Name SourceOfValue Value
---- ---- ------------- -----
System.String TrustedHosts machineA,machineB,machineC,machineD
winrm set winrm/config/client '@{TrustedHosts="machineA,machineB"}'
I created a module to make dealing with trusted hosts slightly easier, psTrustedHosts. You can find the repo here on GitHub. It provides four functions that make working with trusted hosts easy: Add-TrustedHost
, Clear-TrustedHost
, Get-TrustedHost
, and Remove-TrustedHost
. You can install the module from PowerShell Gallery with the following command:
Install-Module psTrustedHosts -Force
In your example, if you wanted to append hosts 'machineC' and 'machineD' you would simply use the following command:
Add-TrustedHost 'machineC','machineD'
To be clear, this adds hosts 'machineC' and 'machineD' to any hosts that already exist, it does not overwrite existing hosts.
The Add-TrustedHost
command supports pipeline processing as well (so does the Remove-TrustedHost
command) so you could also do the following:
'machineC','machineD' | Add-TrustedHost
The suggested answer by Loïc MICHEL blindly writes a new value to the TrustedHosts entry.
I believe, a better way would be to first query TrustedHosts.
As Jeffery Hicks posted in 2010, first query the TrustedHosts entry:
PS C:\> $current=(get-item WSMan:\localhost\Client\TrustedHosts).value
PS C:\> $current+=",testdsk23,alpha123"
PS C:\> set-item WSMan:\localhost\Client\TrustedHosts –value $current
Source: Stackoverflow.com