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PO
 

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    <p>It's a shame you can't use netcat - are all open source options like it off-limits in your environment?</p> <p>Even without open source tools, you can still accomplish this task with PowerShell.</p> <p>Here's a sample PS script that will try to connect to port 23 on $remoteHost and exit 0 on success, and 1 on failure. (If you need to do more work once connected, a few examples of more complex PowerShell telnet clients are available on the web, such as <a href="http://thesurlyadmin.com/2013/04/04/using-powershell-as-a-telnet-client/" rel="nofollow noreferrer">this one</a>.)</p> <p>Place the code in the file "foo.ps1", then run in cmd.exe (or from a .bat file) with "<strong>powershell -File foo.ps1</strong>". When it exits, the exit code will be stored in %errorlevel%.</p> <p>Note you may need to modify your PowerShell script execution policy (or use the <a href="https://stackoverflow.com/a/9167524/267263">"-ExecutionPolicy Bypass" cmdline option</a>) to allow execution of the script - for more info see <a href="http://technet.microsoft.com/en-us/library/ee176949.aspx" rel="nofollow noreferrer">this documentation from MSFT</a>.</p> <pre><code>param( [string] $remoteHost = "arbitrary-remote-hostname", [int] $port = 23 ) # Open the socket, and connect to the computer on the specified port write-host "Connecting to $remoteHost on port $port" try { $socket = new-object System.Net.Sockets.TcpClient($remoteHost, $port) } catch [Exception] { write-host $_.Exception.GetType().FullName write-host $_.Exception.Message exit 1 } write-host "Connected.`n" exit 0 </code></pre>
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    1. POAutomate telnet port testing on Windows 7 using batch script
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    1. USBill Agee
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    1. CO`D:\*********>powershell -File test.ps1 File D:\**********\test.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see "get-help about_signing" for more details. + CategoryInfo : NotSpecified: (:) [], ParentContainsErrorRecordException + FullyQualifiedErrorId : RuntimeException`
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      1. USShivanand
    2. COYes, that's why I mentioned you need to either use "-ExecutionPolicy Bypass" or follow the directions on the MS documentation link I posted. :) See the paragraph just above the code snippet I posted. Or, you can google the error string for more accounts of how to get around the policy.
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    3. COThanks for the help :). This method works
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