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GNS3 Linux - A hypervisor is already running on port 7200

Issue

When trying to add a device I get the error

A hypervisor is already running on port 7200

Solution

This is due to some Dynaip processes not finishing after the closure of the previous GNS3 session. Close the GNS3 GUI and run the command (via CLI) pkill -9 dyna

About the Author

RDonato

R Donato

Rick Donato is the Founder and Chief Editor of Fir3net.com. He currently works as a Principal Network Security Engineer and has a keen interest in automation and the cloud.

You can find Rick on Twitter @f3lix001