Thanks for your reply.
You want to edit postgresql.conf and set listen_addresses to *. And you need to add a host or hostssl entry to pg_hba.conf allowing a connection from your office machine.
Oh! Yes. I already had made this, and gave certain :o), but I can connect only with trust mode (without pass). When I change to md5, crypt, kerberos I do not obtain to connect :'( Already consult the documentation and that is allready. Can help me?