DNS delegation based on both location and organization
Stephane Bortzmeyer
bortzmeyer at nic.fr
Fri Sep 9 08:17:46 UTC 2005
On Thu, Sep 08, 2005 at 01:22:15PM +0200,
Brad Knowles <brad at stop.mail-abuse.org> wrote
a message of 136 lines which said:
> But keep in mind that you don't want to list too many
> authoritative servers (typically no more than four or five),
You need many more servers to run into problems, even with very long
queries (see http://w6.nic.fr/dnsv6/resp-size.html if you intend to
calculate).
> when you start causing truncation, which results in DNS queries
> having to be re-tried with TCP, etc....
BIND has EDNS0 support for many years, which means it can bypass the
512-bytes limit without resorting to TCP.
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