The Management, Instrumentation, and Discovery (MID) Server is a Java application that runs as a Windows service or UNIX daemon on a server in your local network. The ServiceNow® MID Server enables communication and the movement of data between a
ServiceNow instance and external applications (Example: One Identity Manager App Server). MID Servers help you to control and secure how ServiceNow communicates with your organization’s systems, especially those behind a firewall. This is optional and it can be used to communicate with the App Server, in case if direct communication to One Identity Manager App Server is not possible from ServiceNow.
You can setup a Mid Server by following the steps listed below.