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Re: DNS issues?

  • From: Valdis . Kletnieks
  • Date: Fri Jul 20 16:25:24 2007 
On Fri, 20 Jul 2007 19:52:34 -0000, =?utf-8?B?Q2hyaXN0aWFuIEt1aHR6?= said:

> To Vladis' point, how do you know that you couldn't reach the roots vs the
> roots not being able to reach you?

In addition to which, his nameservers probably wouldn't *need* to reach the
actual roots unless they'd managed to timeout their cache for things like
.com and .org and .net.  'dig . soa' says:

.                       86400   IN      SOA     A.ROOT-SERVERS.NET. NSTLD.VERISIGN-GRS.COM. 2007072000 1800 900 604800 86400

86400. Yummy. "Tune in tomorrow for updates".  Most likely, it's a TLD server
or three that he's unable to reach, not the actual roots themselves. But given
that routing issues *are* included in the original message, and I've seen naught
saying that there were any DNS servers in the "reachable but misbehaving" state,
I have to conclude that root cause is a routing blurp.

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