Find the host name and port using PSQL commands
This command will give you postgres port number
\conninfoIf postgres is running on Linux server, you can also use the following command
sudo netstat -plunt |grep postgresOR (if it comes as postmaster)
sudo netstat -plunt |grep postmasterand you will see something similar as this
tcp 0 0 127.0.0.1:5432 0.0.0.0:* LISTEN 140/postgrestcp6 0 0 ::1:5432 :::* LISTEN 140/postgresin this case, port number is 5432 which is also default port number
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The default PostgreSQL port is 5432. The host that the database is operating on should have been provided by your hosting provider; I'd guess it would be the same host as the web server if one wasn't specified. Typically this would be configured as localhost, assuming your web server and database server are on the same host.