21.12. Certificate Authentication
This authentication method uses SSL client certificates to perform
authentication. It is therefore only available for SSL connections;
see
Section 19.9.2
for SSL configuration instructions.
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 21.2 for details.
It is redundant to use the
clientcert
option with
cert
authentication because
cert
authentication is effectively
trust
authentication
with
clientcert=verify-full
.