+For network sockets, a port may be specified by using the form
+C<B<[>I<address>B<]:>I<port>>. If the address is an IPv4 address or a fully
+qualified domain name (i.E<nbsp>e. the address contains at least one dot
+(C<.>)), the square brackets can be omitted, resulting in the (simpler)
+C<I<address>B<:>I<port>> pattern.. The default port is B<42217/udp>.
+
+The following formats are accepted. Please note that the address of the UNIX
+domain socket B<must> start with a slash in the second case!
+
+ unix:</path/to/unix.sock>
+ /<path/to/unix.sock>
+ <hostname-or-ip>
+ [<hostname-or-ip>]:<port>
+ <hostname-or-ipv4>:<port>
+