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Communication Options

The Cluster Manager and the nodes running Gurobi Remote Services communicate through a REST API using HTTP by default. If you are using a Cluster Manager, you have a few options for a more secure deployment with HTTPS:

  • Use a load balancer listening on HTTPS in front of the Cluster Manager. The load balancer can terminates TLS encryption, and forward the communication to the Cluster Manager as HTTP.
  • Enable HTTPS on the Cluster Manager and then let it forward the communication to the nodes using HTTP. The nodes themselves will continue to communicate over HTTP only.
  • End-to-end HTTPS by enabling HTTPS on the Cluster Manager and the nodes.

If you are not using a Cluster Manager, you still have a few options:

  • Enable HTTPS for all of the nodes.
  • Set up a Gurobi Router and enable HTTPS for the router only.
  • End-to-end HTTPS by enabling HTTPS on the Router and the nodes.

Enabling HTTPS on the different components follows the same principles. Remote Services also support self-signed certificates for testing your deployment. Finally, firewalls may have to be configured to let clients connect to the Cluster Manager or the Cluster nodes. In some cases, a Remote Services router can be used instead of a Cluster Manager.


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