facebook DNS

Maria Iano maria at iano.org
Thu May 21 12:48:51 CDT 2009


Sorry - my bad - I will post to outages in future.

Digs to name servers were showing similar results to Patrick's below.  
However, it seems to be fixed now.

Maria

On May 21, 2009, at 12:56 PM, John Payne wrote:

>
> On May 21, 2009, at 12:03 PM, Patrick Darden wrote:
>
>> Whois query gets us:
>>  NS2.FACEBOOK.COM   204.74.67.132
>>  DNS05.SF2P.TFBNW.NET     DNS04.SF2P.TFBNW.NET      
>> NS1.FACEBOOK.COM   204.74.66.132
>>
>> both 204.74.67.132 and 204.74.66.132 are pingable, but DNS queries  
>> on them directly get various answers:
>>
>> nslookup www.facebook.com 204.74.66.132
>> *** Can't find www.facebook.com: No answer
>>
>> and
>> nslookup www.harvard.edu 204.74.66.132
>> ** server can't find www.harvard.edu: SERVFAIL
>>
>> This tells me the DNS is set up and semi-working, but incorrectly.   
>> It answers correctly for a query for a domain outside its purview,  
>> but with a "No answer" for stuff it should know.
>
> a) why are you relying on whois for stuff that's authoritative in DNS?
> b) isn't this what the outages list is for?
>
>
>>
>>
>> --p
>>
>>
>>
>> Darden, Patrick S. wrote:
>>> I noticed this as well around 11:50 eastern.
>>>
>>> --Patrick Darden
>>>
>>>
>>> -----Original Message-----
>>> From: Maria Iano [mailto:maria at iano.org] Sent: Thursday, May 21,  
>>> 2009 11:56 AM
>>> To: nanog at nanog.org
>>> Subject: facebook DNS
>>>
>>> It looks like facebook is having DNS troubles. The www.facebook.com
>>> subdomain is delegated to some servers that are no longer  
>>> answering.  Also apps.facebook.com is a cname to www- 
>>> college.facebook.com which gets
>>> no reply.
>>>
>>> Maria
>>>
>>>
>>>
>>
>





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