Hi Support team,
I have changed as per the given instructions .
Task 5
: Add an entry host all all 0.0.0.0/0 md5
to the end of the file /etc/postgresql/10/main/pg_hba.conf
on the DB server.
This will allow the web application to connect to the DB
I have changed in the above with path file of pg_hba.conf file and please find the screen shot . Even though it is not working