# Authentication Mechanisms in MongoDB

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.

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.

# Authentication Mechanisms

MongoDB supports multiple authentication mechanisms.

Client and User Authentication Mechanisms

  • X.509 Certificate Authentication
  • MongoDB Challenge and Response (MONGODB-CR)
  • LDAP proxy authentication, and
  • Kerberos authentication
  • Internal Authentication Mechanisms

    • Keyfile
    • X.509