restricting identd to just the loopback adapter.

I have installed running pg 7.2, and it apparently would like to have
an identd server to help it establish who is who.

I installed pidentd from the red hat 8.0 distribution and started it
up but, but looking over the conf files, there is apparently no way to
restrict identd to listening/binding only to the localhost adapter.

Can you folks help?

How do I make identd bind only to the loopback adapter?

Thank you,

Jerry Asher