Warning: pg_connect(): Unable to connect to PostgreSQL server: could not connect to server: Permission denied Is the server running on host \"10.0.1.201\" and accepting TCP/
One more possible scenario/solution that worked for me (for the very same problem) is here:
service httpd stop
service postgresql stop
setsebool -P httpd_can_network_connect 1
service httpd start
service postgresql start
Check the listen_addresses setting in postgresql.conf. If it is set to localhost, then only loopback connections will be accepted, and remote connections will get a "connection refused" error. Set listen_addresses to "*" to enable listening on all interfaces.
In PostgreSQL you have to configure client authentication in pg_hba.conf on the remote server.
Read more about pg_hba.conf @ http://developer.postgresql.org/pgdocs/postgres/auth-pg-hba-conf.html , otherwise you'll never connect to that server :).
Hope it will help, Stefan