How does bind 9.x chooses root servers?

Jittinan Suwanruengsri jittinans at ttt.co.th
Fri Sep 19 08:57:32 UTC 2014


Hi,

 

How does bind 9.x chooses root servers? 

 

This is sample result from tcpdump on Bind 9.x .From this result it
means bind chooses root servers base on weight of response time. It does
not choose the lowest response time server. Do I understand correctly?

 

      2 a.root-servers.net.domain

      2 b.root-servers.net.domain

      2 c.root-servers.net.domain

     33 d.root-servers.net.domain

     25 e.root-servers.net.domain

     14 f.root-servers.net.domain

      3 h.root-servers.net.domain

     64 i.root-servers.net.domain

      5 j.root-servers.net.domain

      3 k.root-servers.net.domain

      4 l.root-servers.net.domain

 

But ripe.net show that bind 9.x chooses the lowest response time
server(http://www.google.co.th/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&
cad=rja&uact=8&ved=0CDQQFjAD&url=http%3A%2F%2Fmeetings.ripe.net%2Fripe-4
5%2Fpresentations%2Fripe45-eof-rickard.pdf&ei=Te4bVMi1LYeQuATQ4IKgAg&usg
=AFQjCNFB2OeVZxZR8qtNuRIJBJDFSmoeIQ)

 

 

Thank You,

 

Mr.Jittinan Suwanrueangsri

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