Invoke-Command_CredSSP.ps1

$RemoteMachines = '1598.domain.com', '1599.domain.com'
$adminname = 'user.name'
$adminpassword = 'YourPassword'
$password = ConvertTo-SecureString $adminpassword -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential (".\$adminname", $password)
$SessionOptions = New-PSSessionOption –SkipCACheck –SkipCNCheck –SkipRevocationCheck

$PSSession = New-PSSession -ComputerName $RemoteMachines -Port 5986 -UseSSL -Authentication Credssp -Credential $cred -SessionOption $SessionOptions

# Do stuff
Invoke-Command -Session $PSSession -ScriptBlock {

gci C:
whoami

}

Get-PSSession | Remove-PSSession