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Mastering ServiceNow by Martin Wood

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Introducing the MID server

The MID server (Management, Instrumentation, and Discovery) is designed to ease communication with external systems. It is rather special, since it does not run on the instance; it is Java software that is installed in a customer's infrastructure. This gives the following advantages:

  • The MID Server has direct communication with others systems, since it is in the customers network. This is very useful for communicating with unencrypted protocols, such as JDBC.
  • Scripts that run on the MID server have access to the filesystem and can include custom Java code in JAR packages.
  • The MID server only initiates connections. It does not accept inbound communication, and does not open any ports. This makes it more acceptable to security ...

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