-Create user @code{gnunet} who is member of the group @code{gnunet} and
-specify a home directory where the GNUnet services will store
-persistant data such as information about peers.
+@cartouche{If only user services shall be used this section can be skipped}.
+
+For using both user and system services, a dedicated user called @code{gnunet}
+is needed. The system services will run as that user and the user services
+will communicate with them over unix domain sockets. That's why the user
+running GNUnet applications will need to be in the @code{gnunet} group.
+In addition the group @code{gnunetdns} may be needed (see below).
+
+Create user @code{gnunet} who is member of the group @code{gnunet}
+(automatically created) and specify a home directory where the GNUnet
+services will store persistant data such as information about peers.