> after login into pgsql through a user, when i try to connect some other
> database it always says that permission denied.
> what do i do?
Read this about pg_hba.conf:
http://www.postgresql.org/docs/7.3/static/client-authentication.html
And this about DB users:
http://www.postgresql.org/docs/7.3/static/user-manag.html
Bye, Chris.