Postgres database authentication

Hi all,

We are extending a web application(front-end: Perl5,
back-end: Postgres-7.2.1). We use DBI module of Perl
for connecting to Postgres.  Now this application
shall have mulitple database, which may be on
different machines. We want a robust authentication
method , so that database access be possible only via
our CGI scripts.
  Kindly, help with your suggestion.

 Thanks in anticipation.

 Regards
 Vijay Luxmi


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