[dns-operations] FreeBSD and the slaving of the root zone

[Randy Bush]

one thing that keeps not being mentioned.  this change means that, if
you just turn bind on, what used to be a cache-only server is now an
authoritative server.

in the workshops, we have been teaching, "it is easy and simple to run a
caching server, and often what you should do for an server which is not
undernourished."  we will no longer be teaching this; life in the
classroom just got a lot harder.

randy