Name server problems? or did Microsoft forget to pay their billagain?

Matt Levine mlevine at efront.com
Wed Jan 24 08:23:19 UTC 2001


Weirdness, they're returning a response (albeit 35 seconds after the
request) for MX records, however, an A lookup for microsoft.com times out..

efnt01:exile {114} dig microsoft.com @207.46.138.12
--
; <<>> DiG 2.2 <<>> microsoft.com @207.46.138.12
; (1 server found)
;; res options: init recurs defnam dnsrch
;; res_send to server 207.46.138.12: Connection timed out
--


efnt01:exile {113} dig microsoft.com MX @207.46.138.12

; <<>> DiG 2.2 <<>> microsoft.com MX @207.46.138.12
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 59973
;; flags: qr aa rd ra; Ques: 1, Ans: 5, Auth: 0, Addit: 5
;; QUESTIONS:
;;      microsoft.com, type = MX, class = IN

;; ANSWERS:
microsoft.com.  7200    MX      10 mail1.microsoft.com.
microsoft.com.  7200    MX      10 mail2.microsoft.com.
microsoft.com.  7200    MX      10 mail3.microsoft.com.
microsoft.com.  7200    MX      10 mail4.microsoft.com.
microsoft.com.  7200    MX      10 mail5.microsoft.com.

;; ADDITIONAL RECORDS:
mail1.microsoft.com.    7200    A       131.107.3.125
mail2.microsoft.com.    7200    A       131.107.3.124
mail3.microsoft.com.    7200    A       131.107.3.123
mail4.microsoft.com.    7200    A       131.107.3.122
mail5.microsoft.com.    7200    A       131.107.3.121

;; Total query time: 35277 msec
;; FROM: efnt01 to SERVER: 207.46.138.12
;; WHEN: Wed Jan 24 00:16:21 2001
;; MSG SIZE  sent: 31  rcvd: 221


--
Matt Levine, CTO <mlevine at efront.com>
eFront Media, Inc. - http://www.efront.com
Phone: +1 714 428 8500 ext. 504
Fax  : +1 949 203 2156
ICQ  : 17080004

-----Original Message-----
From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu]On Behalf Of
Eric A. Hall
Sent: Tuesday, January 23, 2001 11:51 PM
To: Sean Donelan
Cc: nanog at merit.edu
Subject: Re: Name server problems? or did Microsoft forget to pay their
billagain?




> It seems like a number of Microsoft related web sites have vanished.

> I noticed name server problems earlier this evening.  Is this
> spreading?

windowsupdate.microsoft.com was also really sporadic for a while earlier,
but I was able to eventually get an answer. As you suggested, connections
to the hosts are going through fine once you get an answer.

dns4.cp.msft.net. through dns7.cp.msft.net (the auth servers) are pinging
fine but DNS queries sent to those hosts timeout. The address block does
appear to belong to Microsoft so... maybe they misconfigured their
firewall or sumtin.

Also noticed extremely high levels of packet loss to them earlier but that
appears to be straightened out.

--
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/






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