to listen for connections from client applications.

The value takes the form of a comma-separated list of host names

and/or numeric IP addresses. The special entry <literal>*</>

corresponds to all available IP interfaces.

corresponds to all available IP interfaces. The entry

<literal>0.0.0.0</> allows listening for all IPv4 addresses and

<literal>::</> allows listening for all IPv6 addresses.

If the list is empty, the server does not listen on any IP interface

at all, in which case only Unix-domain sockets can be used to connect

to it.