- Security >
- Authentication >
- Authentication Mechanisms
Authentication Mechanisms¶
MongoDB supports the following authentication mechanisms:
MongoDB Challenge and Response (MONGODB-CR)
Changed in version 3.0: New challenge-response users created in 3.0 will use
SCRAM-SHA-1. If using 2.6 user data, MongoDB 3.0 will continue to useMONGODB-CR.
In addition, MongoDB Enterprise also provides supports for additional mechanisms. See Enterprise Authentication Mechanisms for additional mechanisms available in MongoDB Enterprise.
Default Authentication Mechanism¶
Changed in version 3.0.
MongoDB uses the SCRAM-SHA-1 as the default challenge and response authentication mechanism. Previous versions used MONGODB-CR as the default.
Specify Authentication Mechanism¶
To specify the authentication mechanism to use, set the
authenticationMechanisms parameter for mongod and
mongos.
Clients specify the authentication mechanism in the db.auth() method.
For the mongo shell and the MongoDB tools, you can also specify the
authentication mechanism from the command line.