Postgresql 9.* remote access

First find pg_hba.conf and postgresql.conf files in your terminal with

locate pg_hba.conf

and then add the following line to pg_hba.conf

 host all all 0.0.0.0/0 md5.

After this, open  postgresql.conf file and change the line

#listen_addresses='localhost'

with

listen_addresses='*'.

Finally, just restart postgresql service with

sudo service postgresql restart.

Enjoy!