===================== Client authentication ===================== Mesh server could be configured to protect its gRPC API so that only authenticated users that are assigned to specific roles can access it. There are two options: - **Kerberos**, where Mesh authenticates users and grants access to specific APIs based on what AD groups the authenticated users belong to. - **External access token**, where users authenticate and request access to Mesh from external authorization servers, and Mesh validates the access token that is obtained from the authorization server. .. toctree:: :maxdepth: 2 kerberos external_auth