Powershell: Test-NetConnection cmdlet is missing from PowerShell Core 6.0.1 release

[kevinlrak]

Test-Connection was added in 5328 but it appears that Test-NetConnection is still missing.

Steps to reproduce

Get-Command Test-NetConnection

Expected behavior

CommandType     Name                                               Version    Source
-----------     ----                                               -------    ------
Function        Test-NetConnection                                 1.0.0.0    NetTCPIP

Actual behavior

Get-Command : The term 'Test-NetConnection' is not recognized as the name of a cmdlet, function, script file, or operable program.
Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:1
+ Get-Command Test-NetConnection
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo          : ObjectNotFound: (Test-NetConnection:String) [Get-Command], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException,Microsoft.PowerShell.Commands.GetCommandCommand

Environment data

> $PSVersionTable
Name                           Value
----                           -----
PSVersion                      6.1.0-preview.2
PSEdition                      Core
GitCommitId                    v6.1.0-preview.2
OS                             Microsoft Windows 10.0.14393
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[iSazonov]

We added Test-Connection - this is new ported cmdlet. Test-NetConnection - this is Windows PowerShell cmdlet from nettcpip module.

[kevinlrak]

I'm a little unclear, does that mean that Powershell 6 will not have Test-NetConnection? I would expect the ability to check a specific port on a system would be of even more interest to unix admins.

My assumption was that, like Test-Connection, Test-NetConnection had also been overlooked. If that was an incorrect assumption, then perhaps this should be re-labeled as a feature request. Otherwise, I believe this is a bug.

[iSazonov]

@kevinlrak Current Test-Connection ported implementation was enhanced. Please see help Test-Connection.

Get-Help -Name Test-Connection
NAME
    Test-Connection

SYNTAX
    Test-Connection [-TargetName] <string[]> [-Ping] [-IPv4] [-IPv6] [-ResolveDestination] [-Source <string>]
    [-MaxHops <int>] [-Count <int>] [-Delay <int>] [-BufferSize <int>] [-DontFragment] [-TimeoutSeconds <int>]
    [-Quiet] [<CommonParameters>]

    Test-Connection [-TargetName] <string[]> [-Ping] [-IPv4] [-IPv6] [-ResolveDestination] [-Source <string>]
    [-MaxHops <int>] [-Delay <int>] [-BufferSize <int>] [-DontFragment] [-Continues] [-TimeoutSeconds <int>] [-Quiet]
    [<CommonParameters>]

    Test-Connection [-TargetName] <string[]> -Traceroute [-IPv4] [-IPv6] [-ResolveDestination] [-Source <string>]
    [-MaxHops <int>] [-TimeoutSeconds <int>] [-Quiet] [<CommonParameters>]

    Test-Connection [-TargetName] <string[]> -MTUSizeDetect [-IPv4] [-IPv6] [-ResolveDestination] [-TimeoutSeconds
    <int>] [-Quiet] [<CommonParameters>]

    Test-Connection [-TargetName] <string[]> -TCPPort <int> [-IPv4] [-IPv6] [-ResolveDestination] [-Source <string>]
    [-TimeoutSeconds <int>] [-Quiet] [<CommonParameters>]

You can to check a specific port too.
.Net Core has still bugs in APIs and not all in Test-Connection works on Unix.
Feel free to test and feedback.

Nettcpip module is not in the repo (another MSFT team is owner) and it is not ported.

[kevinlrak]

@iSazonov what version are you running? I'm on the 6.1.0-preview.2, but my help Test-Connection does not match what you put above. Neither does the online help page for Test-Connection in Powershell 6.

Here is what I get:

SYNTAX
    Test-Connection [-ComputerName] <String[]> [-AsJob] [-BufferSize <Int32>] [-Count <Int32>] [-Delay <Int32>] [-Impersonation {Default | Anonymous | Identify | Impersonate | Delegate}] [-ThrottleLimit <Int32>] [-TimeToLive <Int32>] [-DcomAuthentication <AuthenticationLevel>] [-Protocol <String>] [-WsmanAuthentication <String>] [<CommonParameters>]

    Test-Connection [-ComputerName] <String[]> [-Source] <String[]> [-AsJob] [-BufferSize <Int32>] [-Count <Int32>] [-Credential <PSCredential>] [-Delay <Int32>] [-Impersonation {Default | Anonymous | Identify | Impersonate | Delegate}] [-ThrottleLimit <Int32>] [-TimeToLive <Int32>] [-DcomAuthentication <AuthenticationLevel>] [-Protocol <String>] [-WsmanAuthentication <String>] [<CommonParameters>]

    Test-Connection [-ComputerName] <String[]> [-BufferSize <Int32>] [-Count <Int32>] [-Delay <Int32>] [-Impersonation {Default | Anonymous | Identify | Impersonate | Delegate}] [-Quiet] [-TimeToLive <Int32>] [-DcomAuthentication <AuthenticationLevel>] [-Protocol <String>] [-WsmanAuthentication <String>] [<CommonParameters>]

However, when I try running Test-Connection with the -TCPPort flag, it does seem to function. So I believe this is mostly a problem with that enhancement being undocumented in the latest current release (6.1.0-preview.2)

[iSazonov]

@kevinlrak It is a trick :-) or bug. You catch Windows PowerShell help. You can find where it is by:
```c#
gcm Test-Connection | fl

I get 

DLL : C:UserssieDownloadsPowerShell-6.1.0-preview.9168-win-x64Microsoft.PowerShell.Commands.M
anagement.dll
HelpFile : C:UserssieDocumentsPowerShellHelpen-USMicrosoft.PowerShell.Commands.Management.dll-He
lp.xml
`` After I rename folderC:UserssieDocumentsPowerShellHelp` I get the right help.

[corretge]

In PowerShell 6.0.2, version installed through HomeBrew on a Mac, both commands are missing:

• Get-Command : The term 'Test-NetConnection' is not recognized as the name of a cmdlet [...]
• get-Command : The term 'Test-Connection' is not recognized as the name of a cmdlet [...]

$PSVersionTable

Name                           Value
----                           -----
PSVersion                      6.0.2
PSEdition                      Core
GitCommitId                    v6.0.2
OS                             Darwin 17.5.0 Darwin Kernel Version 17.5.0: Fri Apr 13 19:32:32 PDT 2018; root:xnu-4570.51.2~1/RELEA...
Platform                       Unix
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

[iSazonov]

@corretge You'll get Test-Connection in 6.1 version or you can use 6.1 Preview2 or current dev builds.