In news:790132e8-896f-4ea6-825c-81ab80f6dcd0@y43g2000hsy.googlegroups.com,
J de Boyne Pollard <j.deboynepollard@tesco.net> typed:
<snipped>
> This is not your problem. It is theirs. A zero TTL on a client-side
> alias is a well-known cause of such difficulties. To quote Mark
> Andrews, "Zero is a good way to inflict a DoS on yourself."; and this
> is precisely what the people who publish the DNS data for
> "blackboard.net." have done to themselves. You might care to tell
> them.

Nice catch.

It's been quite some time since I've seen you in the groups, Jonathan. Nice
to see you again,. I hope you've been well.

Ace