Public/Test-MyNetConnection.ps1
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function global:Test-MyNetConnection { <# .EXTERNALHELP HelperFunctions.psm1-Help.xml #> [CmdletBinding()] [Alias('fnTest-NetConnection')] param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true, ValueFromPipelineByPropertyName = $true, Position = 0)] [Alias ('CN', 'Computer', 'ServerName', 'Server', 'IP')] [String[]]$ComputerName = $env:COMPUTERNAME, [Parameter(Mandatory = $true, Position = 1)] [int32]$Port ) begin { # Enable TLS 1.2 and 1.3 try { #https://docs.microsoft.com/en-us/dotnet/api/system.net.securityprotocoltype?view=netcore-2.0#System_Net_SecurityProtocolType_SystemDefault if ($PSVersionTable.PSVersion.Major -lt 6 -and [Net.ServicePointManager]::SecurityProtocol -notmatch 'Tls12') { Write-Verbose -Message 'Adding support for TLS 1.2' [Net.ServicePointManager]::SecurityProtocol += [Net.SecurityProtocolType]::Tls12 } } catch { Write-Warning -Message 'Adding TLS 1.2 to supported security protocols was unsuccessful.' } $localComputer = Get-CimInstance -ClassName CIM_ComputerSystem -Namespace 'root\CIMv2' -ErrorAction SilentlyContinue $thisHost = "{0}.{1}" -f $localComputer.Name, $localComputer.Domain if (($localComputer.Caption -match "Windows 11") -eq $true) { try { #https://docs.microsoft.com/en-us/dotnet/api/system.net.securityprotocoltype?view=netcore-2.0#System_Net_SecurityProtocolType_SystemDefault if ($PSVersionTable.PSVersion.Major -lt 6 -and [Net.ServicePointManager]::SecurityProtocol -notmatch 'Tls13') { Write-Verbose -Message 'Adding support for TLS 1.3' [Net.ServicePointManager]::SecurityProtocol += [Net.SecurityProtocolType]::Tls13 } } catch { Write-Warning -Message 'Adding TLS 1.3 to supported security protocols was unsuccessful.' } } elseif (($localComputer.Caption -match "Server 2022") -eq $true) { try { #https://docs.microsoft.com/en-us/dotnet/api/system.net.securityprotocoltype?view=netcore-2.0#System_Net_SecurityProtocolType_SystemDefault if ($PSVersionTable.PSVersion.Major -lt 6 -and [Net.ServicePointManager]::SecurityProtocol -notmatch 'Tls13') { Write-Verbose -Message 'Adding support for TLS 1.3' [Net.ServicePointManager]::SecurityProtocol += [Net.SecurityProtocolType]::Tls13 } } catch { Write-Warning -Message 'Adding TLS 1.3 to supported security protocols was unsuccessful.' } } if ($PSBoundParameters.ContainsKey('ComputerName') -and ($PSBoundParameters["ComputerName"] -ne $null) -and ($PSBoundParameters["ComputerName"].Count -gt 1)) { $ComputerName = $ComputerName -split (",") } elseif ($PSBoundParameters.ContainsKey('ComputerName') -and ($PSBoundParameters["ComputerName"] -ne $null) -and ($PSBoundParameters["ComputerName"].Count -eq 1)) { $ComputerName = $PSBoundParameters["ComputerName"] } } process { foreach ($C in $ComputerName) { try { Test-NetConnection -ComputerName $C -Port $Port } catch { $errorMessage = "{0}: {1}" -f $Error[0], $Error[0].InvocationInfo.PositionMessage Write-Error $errorMessage -ErrorAction Continue } } } end { } }#end function Test-MyNetConnection |