So often in the past I had to spend time troubleshooting connectivity during product installs. At the end you always come down to testing the ports with Telnet.

So often I have gone to use Telnet to find it is not installed, and I am not able to install due to permissions. So I end up finding the right admin who can do it, which all takes time. Telnet is pretty basic too, but there is a better way, this was especially useful when I had a project to test ESXi connectivity to hundreds of ROBO sites during deployment, it meant we could script in Powershell a basic connectivity test.

So the command is
Test-Netconnection -Computername FQDN -Port xx
This Test-Netconnect has lot more commands as well to make it a really powerful tool. You can start to replace those ping, tracert, telnet commands we have been using for year. Check out this link for more info,
https://docs.microsoft.com/en-us/powershell/module/nettcpip/test-netconnection?view=win10-ps

This code example shows how easy it is to run!

Test-NetConnect Telnet

Check my firewall table for vSphere products http://vPorts.Info

Categories: Quick Guide

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