back to article DDoS attack scrooges Amazon and others

Service to Amazon, Wal-Mart and several other shopping sites was briefly blocked on Wednesday evening when their DNS provider was hit by a distributed denial of service (DDoS) attack. Neustar, which provides DNS services to high profile website addresses under the UltraDNS brand, said the flood of malicious traffic, just two …

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Ho Ho Ho

I 'twas laughing all the way through the article.

That was their fault that they didn't shop earlier.

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FAIL

Huh?

The inability to reach the authoritative DNS servers for domain X is not the same thing as "domain X is down". I'm sure Amazon's servers were all fine, and working normally.

And for a large site like Amazon, surely their key DNS records would be sitting in cache on many ISPs DNS servers - or do UltraDNS deliberately set ridiculously low TTLs?

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Alert

Yes, it seems their TTL is very low...

60secs by my digs...

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Coat

Cloud

And that's why you shouldn't rely on 3rd parties for sensitive things: a DDoS on a Amazon's 3rd party (4th party?) resulted on Amazon's cloud being inaccessible for {some|many} users.

Coat: first the clouds come, then they rain.

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Badgers

@Steve Foster

"And for a large site like Amazon, surely their key DNS records would be sitting in cache on many ISPs DNS servers - or do UltraDNS deliberately set ridiculously low TTLs?"

Everyone does thanks to this wonderful "dynamic web" being rammed down our throats. Every site I check on is hopping all over the damn internet every 5 minutes - and I don't mean just moving around within a /16 or /24 block . Anyone related to Akamai is the worst. This is the biggest nightmare with Windows update, MS uses a dozen different domains that never stay in the same place for writing decent firewall and proxy rules.

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