Address of the L<rrdcached> daemon. If specified, a C<flush> command is sent
to the server before reading the RRD files. This allows B<rrdtool> to return
-fresh data even if the daemon is configured to cache values for a long time. To
-specify a UNIX domain socket use the prefix C<unix:>, see example below. Other
-addresses are interpreted as normal network addresses, i.E<nbsp>e. IPv4 or IPv6
-addresses in most cases.
+fresh data even if the daemon is configured to cache values for a long time.
+For a list of accepted formats, see the B<-l> option in the L<rrdcached> manual.
rrdtool last --daemon unix:/var/run/rrdcached.sock /var/lib/rrd/foo.rrd
+=item B<--noflush>
+
+If the L<rrdcached> daemon is being used, then omit the flush normally
+send before returning the last update. If you add this option, you get the
+last time the file on disk was updated; if you have relatively low cache times
+and are calling this frequently it will preserve the caching benefit
+
=back
=head1 ENVIRONMENT VARIABLES
=head1 AUTHOR
Russ Wright <rwwright@home.com>
-
+Daemon support added by Steve Shipway <steve@steveshipway.org>