#Store Password run once to export password
read-host -assecurestring | convertfrom-securestring | out-file C:\securestring.txt

$username = "domain01\serviceaccount"
$password = cat C:\securestring.txt | convertto-securestring
$cred = new-object -typename System.Management.Automation.PSCredential `
         -argumentlist $username, $password

$SecureStringPath = "C:\scripts\securestring.txt"
$Key = (95,183,225,42,45,40,195,199,49,22,148,13,57,155,79,172,27,133,163,198,234,54,236,94,168,50,44,207,197,78,146,226)
#Store Password
#read-host -assecurestring | convertfrom-securestring -Key $Key | out-file C:\scripts\securestring.txt

$username = "blah\testServiceAccount"
$password = cat $SecureStringPath | convertto-securestring -Key $Key 
$Cred = new-object -typename System.Management.Automation.PSCredential -argumentlist $username, $password

#need to enable CredSSP (multi-hop support) in order for this to work
#Enable-WSManCredSSP -Role Server
#Enable-WSManCredSSP -Role Client -DelegateComputer SourceServerName
http://dustinhatch.tumblr.com/post/24589312635/enable-powershell-remoting-with-credssp-using-group

Testing Remoting

$cred = Get-Credential
$Servers = "server1","server2"
foreach ($Server in $Servers) {
    $TestPSRemoting = $null
    $TestPSRemoting = Test-WSMan -Credential $cred -Authentication Negotiate -ComputerName $Server
    If ($TestPSRemoting) {
        Write-Host "$Server connected successfully"
    }
    Else
        {Write-Host "$Server connection failed"}
}

Using Remoting

Enter-PSSession SERVER1
[SERVER1]: PS C:\>
 
$Session = New-PSSession -ComputerName SERVER1
Enter-PSSession -Session $Session

Invoke-Command –ComputerName server1, server2, server3 –ScriptBlock { iisreset }
Invoke-Command –ComputerName (Get-Content Servers.txt) ScriptBlock { iisreset }
Invoke-Command –ComputerName $servers ScriptBlock { iisreset }
 
$Results = Invoke-Command -Session $Session -ScriptBlock { Get-Service }

$Command = [ScriptBlock]::Create(@"
Import-Module ActiveDirectory
Do some stuff
"@)

Implicit Remoting

$Session = New-PSSession –ComputerName SERVER1
Invoke-Command –Session $Session –ScriptBlock {Import-Module ActiveDirectory}
Import-PSSession –Session $Session –Module ActiveDirectory 

Passing Variables

Invoke-Command -ComputerName Server01 -ScriptBlock {
   Write-Output "The value of `$a is: $($args[0])"
   Write-Output "The value of `$b is: $($args[1])"
} -ArgumentList $a,$b
 
Invoke-Command -ComputerName Server01 -ScriptBlock {
   param ($first,$second)
   Write-Output "The value of `$a is: $first"
   Write-Output "The value of `$b is: $second"
} -ArgumentList $a,$b 

Invoke-Command -ComputerName Server01 -ScriptBlock {
   Write-Output "The value of `$a is: $using:a"
   Write-Output "The value of `$b is: $using:b"
}