Authentication

Authentication is the process of verifying the identity of a client. When access control, i.e. authorization, is enabled, MongoDB requires all clients to authenticate themselves in order to determine their access.

Although authentication and authorization are closely connected, authentication is distinct from authorization. Authentication verifies the identity of a user; authorization determines the verified user’s access to resources and operations.

Authentication Methods

To authenticate a user, MongoDB provides the db.auth() method.

For the mongo shell and the MongoDB tools, you can also authenticate a user by passing in the user authentication information from the command line.

Authentication Mechanisms

MongoDB supports a number of authentication mechanisms that clients can use to verify their identity. These mechanisms allow MongoDB to integrate into your existing authentication system.

MongoDB supports multiple authentication mechanisms:

In addition to supporting the aforementioned mechanisms, MongoDB Enterprise also supports the following mechanisms:

Internal Authentication

In addition to verifying the identity of a client, MongoDB can require members of replica sets and sharded clusters to authenticate their membership to their respective replica set or sharded cluster. See Internal Authentication for more information.

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