I'd like to see a DNS xfer protocol that allowed secondaries to be
completely updated from a master - ie, the master could send all types
of updates to the secondary site - mater ip address, domains to handle, etc.
Perhaps it exists, but I haven't heard of it. Most people seem to be
doing the "send email to the secondary admin" or "get root on the
secondary machine" things.
this is on my personal list for some time after DNSIND closes and we get
it all implemented. if someone else gets to it sooner, well, great!