How to tell if something is anycasted?

Joe Abley jabley at
Wed May 17 20:33:00 UTC 2006

On 17-May-2006, at 10:45, bmanning at wrote:

> well Peter, ONE root server operator has that practice.  Others
> have different practices regarding anycast.

Actually, it looks to me like all thirteen root servers answer  
"HOSTNAME.BIND CHAOS TXT" queries (J might check for trailing dots,  
maybe ;-) and also that F and C share a strikingly similar naming  

[octopus:~]% for n in a b c d e f g h i j k l m; do
for> echo -n "trying ${n}... "
for> dig @${n} hostname.bind chaos txt +short
for> done
trying a... "ns6-aroot"
trying b... "b3"
trying c... ""
trying d... ""
trying e... ""
trying f... ""
trying g... ""
trying h... "H1"
trying i... "s1.was"
trying j... ""
trying k... "k2.nap"
trying l... ""
trying m... "M-SFO-1"


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