18 Sep
2003
18 Sep
'03
2:22 p.m.
On Thu, 18 Sep 2003, Leo Bicknell wrote: : Number your sites from 1..N, have all odds announce one address, all : evens the other. DNS servers will still use the closest (due to RTT : checking), but will now also have a backup that does not go to the same : site in steady state, but is still very close as well. Yup. Of course, if what they really want is to bias it toward geographic closeness, more than two would be needed. One possible example: tld0.ultradns.net -> advertised by everyone tld1.ultradns.net -> advertised by odd servers tld2.ultradns.net -> advertised by even servers With the provision that tld0 shows up first in queries for the glue records (for first-pick bias). -- -- Todd Vierling <tv@duh.org> <tv@pobox.com>