How are DNS Records added dynamically in DNS Servers?
davew at hireahit.com
Tue Sep 8 20:33:24 UTC 2015
On 2015-09-08 11:53, Robert Edmonds wrote:
> Mark Andrews wrote:
>> Because outlook.com's nameservers are not EDNS compliant which
>> breaks anyone attempting to use EDNS extensions unless they hack
>> around this.
> Some of their nameservers are not even compliant with RFC 2181 §5.2.
> ;; QUESTION SECTION:
> ;outlook.com. IN NS
> ;; ANSWER SECTION:
> outlook.com. 172800 IN NS ns1a.o365filtering.com.
> outlook.com. 300 IN NS ns4a.o365filtering.com.
> outlook.com. 300 IN NS ns2a.o365filtering.com.
> outlook.com. 172800 IN NS ns2.msft.net.
> outlook.com. 172800 IN NS ns4.msft.net.
> outlook.com. 172800 IN NS ns1.msft.net.
> outlook.com. 172800 IN NS ns3.msft.net.
Also interesting, although not necessarily relevant, but there are at
least three different serial numbers being returned by those various
servers, with different TTLs on the NS records depending on which server
I wonder if they're in the process of updating and the records only
partially updated? Odd that it was served at all though.
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