follow, such as the B<GETVAL> command. These commands usually return a negative
value on failure and never return zero.
+=head1 ABSTRACTION LAYER
+
+Shipped with the sourcecode comes the Perl-Module L<Collectd::Unixsock> which
+provides an abstraction layer over the actual socket connection. It can be
+found in the directory F<contrib/PerlLib>. If you want to use Perl to
+communicate with the daemon, you're encouraged to use and expand this module.
+
=head1 SEE ALSO
L<collectd(1)>, L<collectd.conf(5)>, L<unix(7)>