LDAP Authentication

Hi,

My first post, new to postgresql, forgive me if this is better suited to
other postgresql mailing list.

I would like to ask about LDAP authentication configuration. It is said
in documentation that first the installation compiled with LDAP option.
I use installer from official postresql site, is it LDAP authentication
ready?

Is there any straight tutorial for setting up LDAP authentication for
pg? where to put the LDAP configuration (pg_services.conf?) and other
step to make LDAP user can login using their id.

Thanks in advance,
Teguh