Warning: pg_connect() [function.pg-connect]: Unable to connect to PostgreSQL server: could not connect to server: No route to host Is the server running on host "192.168.0.20" and accepting TCP/IP connections on port 5432? in /var/www/html/new_portal/conectar.php on line 17

Warning: pg_last_error() [function.pg-last-error]: No PostgreSQL link opened yet in /var/www/html/new_portal/conectar.php on line 18
No se ha podido conectar: host=192.168.0.20 dbname=SITAS user=sitas password=sitas47