Using Odoo 9.0 and PostgreSQL 9.5.

I want to use Odoo in a remote PostgreSQL server. Both services are in different Cloud servers hosted on Digital Ocean. I already tried:

• Changing the pg_hba.conf and postgresql.conf to listen to all addresses and hosts in the PostgreSQL Server machine.

• Creating odoo user in postgres with superuser and createdb permissions.

• Changing both the openerp-server.conf at /opt/odoo/odoo-server/debian and /etc/odoo/. Adding the db_host, db_port, db_user and db_password accordingly. Also tried removing the comment symbol from the line  "admin_passwd = admin" and using it as master password when acessing Odoo for the first time.
  

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This covers basically all the solutions suggested in other threads about this same problem.

Anyone got any clues ?

Any help is highly appreciated!