On Tue, Oct 3, 2017 at 6:46 AM, Elson Vaz <elsonlei(at)gmail(dot)com> wrote:
> gentlemen,
>
> i have one system that conect with one specific user to data base, so i
> want block acess for this user only if he come from the aplication server.
>
>
https://www.postgresql.org/docs/9.6/static/client-authentication.html
The pg_hba.conf file is going to be required since you want the access to
be conditional on the machine and grant/revoke cannot do that.
David J.