authentication for clients connecting to the rrdcache daemon!
If your rrdtool installation was built with libwrap then you can use
-hosts_access to restrict client access to the rrdcache daemon. For more
+hosts_access to restrict client access to the rrdcache daemon (rrdcached). For more
information on how to use hosts_access to restrict access to the rrdcache
daemon you should read the hosts_access(5) man pages.
external clients want to draw graphs of the cached data, they should only be
allowed to use the C<FLUSH> command.
+Authorization does not work when rrcached is socket-activated by systemd.
+
=head2 Encryption
There is no encryption.