TestFairy Connect is designed to help developers integrate their bug tracking systems running behind firewall with their TestFairy account.
The key part of TestFairy Connect is the agent service (TFC Agent) that runs on a system also behind firewall, connecting both TestFairy's web app and bug tracking system.
For installation procedure and further details, please visit https://docs.testfairy.com/Bug_Tracking/TestFairy_Connect.html