adcheck

adcheck.ps1

## Get all DCs
$ports = @(
    "135", ## TCP
    "389", ## TCP/UDP
    "636", ## TCP
    "3268", ## TCP
    "3269", ## TCP
    "53", ## TCP/UDP
    "88", ## TCP/UDP
    "445" ## TCP
)

$Servers = @()

Foreach ($thing in $Servers) {
    foreach ($p in $ports) {
        [PSCustomobject]@{
            From   = $env:COMPUTERNAME
            To     = $thing
            Port   = $p
            Result = (Test-NetConnection -ComputerName $thing -Port $p).TcpTestSucceeded
        }
    }
}