Dynamic update in BIND 9

[Howard Lowndes]

I am trying to get dynamic updating working in BIND 9.1.x

What I have is a box on an ADSL link which gets a dynamic IP and I want to
update the master DNS somewhere else with an A record with this IP when
the box comes on-line.

I have the master DNS set up with the "key" statement OK and the
"allow-update" statement and I have restarted the DNS.

When I use nsupdate with the same key the master DNS rejects the update
request, saying that the signature is invalid.

I notice in the BIND docs that it also mentions a "server" statement which
assumes that the IP for both ends is known, but this is not the case for
me as one end is dynamic IP.

All clues welcome.

-- 
Howard.
LANNet Computing Associates - Your Linux people
Contact detail at http://www.lannetlinux.com