[TriLUG] Google lookup problems...

[David McDowell]

YES I have.  In the last week or 2, I've had to restart my local DNS
service (named) before I can get www.google.com or gmail.google.com to
resolve on numerous occasions.  As soon as I restart the named server,
all is well.

good luck with the diagnostics and sharing of the info with Google!

David McD

On Apr 2, 2005 8:50 AM, Aaron S. Joyner <aaron at joyner.ws> wrote:
> Okay, I specifically waited until after April fools day to post this.
> Has anyone else had problems resolving www.google.com?  I want to know
> if I'm going crazy, or if it's some systemic problem that I haven't
> chased down yet.  Both from home, and work, at various times, Firefox
> (and Mozilla, and everything else that depends on the resolver library)
> is unable to search or resolve google.
> 
> I'm curious, before I go reporting this to Google, to make sure I'm not
> the only one seeing this problem.  Perhaps I'm just loosing my mind.
> 
> I have chased the problem thoroughly with dig, and the only thing that
> looks out of place is that ns1.google.com will provide glue records for
> a.l.google.com through d.l.google.com, but if you query for NS records
> for l.google.com at any of those servers, you get no responses.  I think
> if the cache of those A records ends up expiring before the cache of
> www.l.google.com, it will fail to properly look them up again by trying
> to hit l.google.com for NS records, and then negatively cache the record
> for 15 mins (as per the SOA).  This probably provides enough time for
> the 5 mins cache of www.l.google.com to expire, and during that 5 to 15
> min window, things are borked, and then get better.  The strange part
> is, I can't explain why www.l.google.com would ever expire later than
> the glue records, at least not at the moment.
> 
> So TriLUGers, weigh in please.  :)  Have you had problems resolving
> Google as of late?
> 
> Aaron S. Joyner
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