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Which servers do EMMs need to communicate with in order to conduct device attestation?

Last updated July 26th, 2023



Any Samsung device supporting the Knox framework.


Your firewall must allow HTTPS traffic between the device management server and Samsung’s Attestation service. The device management server initiates each session.

The general Attestation API domain is There are also three region specific domains:

  • China region —
  • European region —
  • US region —

Depending on your location and EMM configuration, you need to allow traffic to one, or several of these domains.

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