[c-nsp] tools.cisco.com - DNS issues ?

[Mack McBride]

This started yesterday.
It appears to be an ongoing issue.

Mack

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Brandon Applegate
Sent: Wednesday, May 25, 2011 10:59 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] tools.cisco.com - DNS issues ?

Seeing this from multiple places.  I get SERVFAIL from my bind boxes, but 
I can poke at it manually with dig and I can get the A record for tools 
sometimes.  It seems like after the 20 second TTL expires it's busted 
again.

I will start looking into local issues, but as I see this from 2 seperate 
unlrelated networks I wanted to see if anyone else can confirm/deny/add 
input.  Thanks in advance.

PS: Before I hit send, I looked in my home resolver's log and see:

May 25 11:57:54 ice named[28394]: error (unexpected RCODE SERVFAIL) resolving 'tools.cisco.com/A/IN': 72.163.4.28#53
May 25 11:57:55 ice named[28394]: error (unexpected RCODE SERVFAIL) resolving 'tools.cisco.com/A/IN': 64.102.246.5#53
May 25 11:57:55 ice named[28394]: error (unexpected RCODE SERVFAIL) resolving 'tools.cisco.com/A/IN': 128.107.227.197#53

Seems like tools.cisco.com is delegated out to 4 GSSes.  These guys 
burping today maybe ?  Seems like one of them is completely unreachable, 
the other 3 threw SERVFAIL as logged above.

--
Brandon Applegate - CCIE 10273
PGP Key fingerprint:
7407 DC86 AA7B A57F 62D1 A715 3C63 66A1 181E 6996
"SH1-0151.  This is the serial number, of our orbital gun."

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