On Sun, 10 Oct 1999, Joseph Friedman wrote:
> So when a new root server is added, how do all the DNS servers on the net
> know of it?
It's up to every sites administrator to keep up on current affairs and
replace the cache as needed when root-servers are upgraded. The only
upgrade I ever heard of was recent. I think there are now 13 roots, which
is the max a udp packet will trasports at anyone time. Folks - jump in a
correct me if I'm wrong here.
I do know of a trick you can use to have your dns update the root cache
file. Your would treat the root dot "." as a secondary and point to one
of the roots. Anytime the root cache changes on the primary root-server,
so will it change on your dns server.
There is a bit of a concern here. If some wild and wacky fun loving
individual every compromised the root cache, it would automatically
pollute all other secondary caches and could result in a potential world
wide dns disaster - no one would be able to communicate, and very few
people would know how to correct the problem. So it's a good thing vixie
packages it as a static file.
Cheers
Joe Baptista
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