Functions/Network/Test-PortConnection.ps1
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Function Test-PortConnection { [CmdletBinding()] Param ( # Target Server/IP [Parameter(Mandatory=$true,valuefrompipeline=$true,position=0)] [string] $ComputerName, # Port to connect on [Parameter(mandatory=$false,position=1)] [Int] $Port = 443, # Optional Source Server (Windows Only) [Parameter(Mandatory=$false,ParameterSetName="remote",position=2)] [string] $SourceComputerName, # Credential to use in Source Server Connection [Parameter(Mandatory=$false,ParameterSetName="remote",position=3)] [pscredential] $Credential ) Process { # switch execution based on ParameterSet $Output = switch ($PSCmdlet.ParameterSetName) { "remote" {Invoke-Command -ComputerName $SourceComputerName -Credential $Credential -ScriptBlock ${Function:Test-PortConnection} -ArgumentList $ComputerName,$Port} DEFAULT { $client = [net.sockets.tcpclient]::new() $test = try {$client.Connect($ComputerName,$Port);$true} catch {$false} finally {$client.Dispose()} [pscustomobject]([ordered]@{ Source = $env:COMPUTERNAME SourceIP = (([System.Net.Dns]::Resolve($env:COMPUTERNAME)).addresslist.ipaddresstostring) Destination = $ComputerName DestinationIP = ([System.Net.Dns]::Resolve($ComputerName)).addresslist.ipaddresstostring Port = $Port Test = $test }) } } # Filter Down the Default Property sSet Set-PSObjectDefaultMembers -Object $Output -Properties Source } } |