This authentication method uses SSL client certificates to perform
authentication. It is therefore only available for SSL connections.
When using this authentication method, the server will require that
the client provide a valid, trusted certificate. No password prompt
will be sent to the client. The cn
(Common Name)
attribute of the certificate
will be compared to the requested database user name, and if they match
the login will be allowed. User name mapping can be used to allow
cn
to be different from the database user name.
The following configuration options are supported for SSL certificate authentication:
map
Allows for mapping between system and database user names. See Section 18.2 for details.
It is redundant to use the clientcert
option with
cert
authentication because cert
authentication is effectively trust
authentication
with clientcert=verify-full
.