[dns-operations] Rodney Joffe: Re: DNS TTL adherence

[David Ulevitch]

On Mar 15, 2006, at 8:11 AM, Jaap Akkerhuis wrote:

>
>     for those of you not on nanog, a dns-operations relevant thread
>     just happened.
>
>
>     $ dig @212.23.11.206 jhgfd.example.centergate.com a
>
>     This behavior is unfortunately not unique.
>
> As I told Rodney in a private mail, this thing is seriously broken.
> Do a dig @212.23.11.206 microsoft.com (and others, nlnetlabs.nl,
> icann.org, kk.org) a couple of times on a row. Also, watch the flags
> doing this.

Yep. This machine is terribly broken.

Doing a PTR check...

The logs from the authoritative server delegated reverse dns for  
38.99.14.0/24 shows two separate requests in a three second window  
from two widely distinct IPs making the same request -- neither of  
which are the destination of my PTR query.
Some odd behavior indeed.

212.23.3.162
212.23.6.161

==> /service/auth2/log/main/current <==
2006-03-15 05:09:43.951137500 d41703a2:8041:e92e + 000c  
56.14.99.38.in-addr.arpa
2006-03-15 05:09:46.347151500 d41706a1:8263:b455 + 000c  
56.14.99.38.in-addr.arpa


Best,
David