winrm

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