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For simple LDAP authentication, the authentication method name. Communication between the authentication plugin and the LDAP server occurs according to this authentication method. 

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These authentication method values are permitted: 

## Note 

For all simple LDAP authentication methods, it is recommended to also set TLS parameters to require that communication with the LDAP server take place over secure connections. 

• SIMPLE : Use simple LDAP authentication. This method uses either one or two LDAP bind operations, depending on whether the MySQL account names an LDAP user distinguished name. See the description of authentication_ldap_simple_bind_root_dn . 

• AD-FOREST : A variation on SIMPLE , such that authentication searches all domains in the Active Directory forest, performing an LDAP bind to each Active Directory domain until the user is found in some domain. 

• authentication_ldap_simple_bind_base_dn 

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