How To Enable Telnet On Windows Server 2016

Past default the telnet client in Microsoft's Windows operating systems is disabled, this is unfortunate equally information technology is an extremely useful tool which tin exist used for testing TCP connectivity to external hosts on a specified port.

This is great when you're trying to troubleshoot network connectivity bug, for example, say nosotros take a web server which should exist listening on port 80 to serve HTTP traffic just we are not able to load a web folio, past using telnet to connect to the web server on port 80 we tin can verify the connectivity.

It may be that the connectivity is fine only at that place is a problem with the spider web server, or that the web server is stopped and the port is non listening at all, for example. With telnet we can go a amend understanding of what'south going on.

Enabling the Telnet Client

Firstly you need to enable the telnet customer, if you don't enable information technology you'll get a result similar to the beneath bulletin when trying to employ information technology.

C:\>telnet google.com 80          'telnet' is non recognized every bit an internal or external command, operable programme or batch file. C:\>

You can enable the telnet client either by command line or through the graphical interface.

Enabling the telnet customer through command prompt

Using the command line is the easiest and fastest fashion to install the telnet client. Run the below control in command prompt with administrator permissions.

dism /online /Enable-Feature /FeatureName:TelnetClient

That's it, after a few seconds telnet should exist ready to use.

Enabling the telnet customer through PowerShell

Once more nosotros can likewise practice this instead with PowerShell, we tin can run the below command in a PowerShell console with administrator permissions.

Install-WindowsFeature -name Telnet-Client

Enabling the telnet client through the graphical user interface

Open Server Managing director.
From Server Director click "Add roles and features".
The Add Roles and Features Wizard opens to the Before yous Begin screen, click next.
On the Installation Blazon screen, leave Role-based or Feature-based installation selected and click next.
On the server selection screen, select the server to install on. By default it should be the local server itself, click next.
On the Server Roles screen, click next. We are installing a feature rather than a part so don't select anything here.
On the Features screen, tick the check box next to Telnet Customer.
On the Confirmation screen, click Install.
Once the installation succeeds, click the Close button. The telnet client is now installed and gear up for use.

Verifying that the telnet customer is enabled

Just open command prompt or powershell, blazon 'telnet' and press enter. If this was successful you should have a prompt similar to the beneath:

Welcome to Microsoft Telnet Customer  Escape Character is 'CTRL+]'  Microsoft Telnet>

Already accept telnet installed but even so failing?
In some cases you must run control prompt or powershell as administrator in order to issue the telnet command, otherwise it will give the aforementioned error as if information technology was non enabled at all.

Summary

Now that you lot have enabled telnet in Windows Server 2016 y'all should exist able to start issuing commands with it and using information technology to troubleshoot TCP connectivity problems.

Source: https://www.rootusers.com/how-to-enable-telnet-client-in-windows-server-2016/

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