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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?
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To add a computer to the TrustedHosts list of a remote computer, use the Connect-WSMan cmdlet to add a node for the remote computer to the WSMan: drive on the local computer. Then use a Set-Item command to add the computer. For more information about the Connect-WSMan cmdlet, see Connect-WSMan.
Windows by default has an empty TrustedHosts list, a list that contains those remote computers (hosts) that you can remotely manage from a client without authentication. In Windows environments using Windows Remote Management (WinRM) can help discover servers using the WinRM protocol.
How can I find out if any trusted hosts are configured on my local computer? Use the Get-Item cmdlet and view the trusted hosts from the WSMan drive, as shown here.
I prefer to work with the PSDrive WSMan:\.
Get TrustedHosts
Get-Item WSMan:\localhost\Client\TrustedHosts Set TrustedHosts
provide a single, comma-separated, string of computer names
Set-Item WSMan:\localhost\Client\TrustedHosts -Value 'machineA,machineB' or (dangerous) a wild-card
Set-Item WSMan:\localhost\Client\TrustedHosts -Value '*' to append to the list, the -Concatenate parameter can be used
Set-Item WSMan:\localhost\Client\TrustedHosts -Value 'machineC' -Concatenate 
winrm set winrm/config/client '@{TrustedHosts="machineA,machineB"}' If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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