On 3 March 2013 12:02, Nick Hilliard <[email protected]> wrote:
> On 03/03/2013 10:46, Arthur Wist wrote:
>> Apparently due to a routing issue...
>
> back up again: http://blog.cloudflare.com/todays-outage-post-mortem-82515
>
> tl;dr: outage caused by flowspec filter tickling vendor bug.

Definitely smart to be delegating your DNS to the web-accelerator
company and a single point of failure, especially if you are not just
running a web-site, but have some other independent infrastructure,
too.

>>>>>>CloudFlare's 23 data centers span 14 countries so the response took some 
>>>>>>time but within about 30 minutes we began to restore CloudFlare's network 
>>>>>>and services. By 10:49 UTC, all of CloudFlare's services were restored. 
>>>>>>We continue to investigate some edge cases where people are seeing 
>>>>>>outages. In nearly all of these cases, the problem is that a bad DNS 
>>>>>>response has been cached. Typically clearing the DNS cache will resolve 
>>>>>>the issue.

Yet, apparently, CloudFlare doesn't even support using any of their
services with your own DNS solutions.

And how exactly do they expect end-users "clearing the DNS cache"?  Do
I call AT&T, and ask them to clear their cache?

http://serverfault.com/questions/479367/how-long-a-dns-timeout-is-cached-for

C.

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