+=item B<-s> I<group_name>|I<gid>
+
+Set the group permissions of a UNIX domain socket. The option accepts either
+a numeric group id or group name. That group will then have both read and write
+permissions (the socket will have file permissions 0750) for the socket and,
+therefore, is able to send commands to the daemon. This
+may be useful in cases where you cannot easily run all RRD processes with the same
+user privileges (e.g. graph generating CGI scripts that typically run in the
+permission context of the web server).
+
+This option affects the I<following> UNIX socket addresses (the following
+B<-l> options), i.e., you may specify different settings for different
+sockets.
+
+The default is not to change ownership or permissions of the socket and, thus,
+use the system default.
+
+=item B<-m> I<mode>
+
+Set the file permissions of a UNIX domain socket. The option accepts an octal
+number representing the bit pattern for the mode (see L<chmod(1)> for
+details).
+
+Please note that not all systems honor this setting. On Linux, read/write
+permissions are required to connect to a UNIX socket. However, many
+BSD-derived systems ignore permissions for UNIX sockets. See L<unix(7)> for
+details.
+
+This option affects the I<following> UNIX socket addresses (the following
+B<-l> options), i.e., you may specify different settings for different
+sockets.
+
+The default is not to change ownership or permissions of the socket and, thus,
+use the system default.
+
+=item B<-P> I<command>[,I<command>[,...]]
+
+Specifies the commands accepted via a network socket. This allows
+administrators of I<RRDCacheD> to control the actions accepted from various
+sources.
+
+The arguments given to the B<-P> option is a comma separated list of commands.
+For example, to allow the C<FLUSH> and C<PENDING> commands one could specify:
+
+ rrdcached -P FLUSH,PENDING $MORE_ARGUMENTS
+
+The B<-P> option affects the I<following> socket addresses (the following B<-l>
+options). In the following example, only the IPv4 network socket (address
+C<10.0.0.1>) will be restricted to the C<FLUSH> and C<PENDING> commands:
+
+ rrdcached -l unix:/some/path -P FLUSH,PENDING -l 10.0.0.1
+
+A complete list of available commands can be found in the section
+L</"Valid Commands"> below. There are two minor special exceptions:
+
+=over 4
+
+=item *
+
+The C<HELP> and C<QUIT> commands are always allowed.
+
+=item *
+
+If the C<BATCH> command is accepted, the B<.>E<nbsp>command will automatically
+be accepted, too.
+
+=back
+
+Please also read L</"SECURITY CONSIDERATIONS"> below.
+