While in some cases these parameters might be adjustable in other contexts, generally the ones in this section are only adjusted in the
postgresql.conf before the server is started.
There are many configuration parameters that control how people can connect remotely and locally to the database. The complete list is documented at http://www.postgresql.org/docs/current/static/runtime-config-connection.html.
Any installation that requires connecting from a remote system will need to change
listen_addresses to allow that. The default only allows local connections from users logged into the same system as the database server. A common approach is to accept incoming connections from anywhere, as ...