Indicates that logging of authentication success and failure should be handled in a special way. <AuthLog FILE>, <AuthLog SQL> and <AuthLog SYSLOG> are currently supported. When authentication is complete, each of the AuthLog clauses defined for the handler will be executed in order. For each AuthLog, the authentication details will be logged according to the parameters for that clause. You can have as many <AuthLog xxxxxx> clauses as you wish, or none at all.

<AuthLog xxxxxx> both defines a logging method and specifies where it should be used.

Note that something like

<Handler xxxx>
      <AuthLog xxxxxx>
            ....
      </AuthLog>
      ....
</Handler>

Is identical to

<AuthLog xxxxxx>
      Identifier myidentifier
</AuthLog>
<Handler xxxxxx>
      # This log through the AuthLog defined above
      AuthLog myidentifier
</Handler>