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I went to stackexchange.com and clicked on SO. After a few minutes I got a message saying "We have detected too many requests from this IP. If this is an error contact us." That was the second SE page I tried to visit. Second only to SE.com

I moved to another machine and it's working now. The first machine usually works, I don't know if a got assigned a blacklisted IP or what. Anyone know what's going on?

EDIT: I would really rather not post my IP on the web, but if a diamond or dev asks I'll email it.

EDIT 2: I looked at badp's dupe suggestion and can verify that I have no scripts frequently calling SO.

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Do you know the IP of the first machine? –  waiwai933 Jan 21 '11 at 1:52
    
@waiwai933: They are on the same LAN. Do you mean the external IP? –  John Jan 21 '11 at 1:54
    
Are your machines all sitting behind a NAT'd LAN with a single WAN IP address? –  Kev Jan 21 '11 at 2:44
    
@Kev: I believe that to be correct. So I don't know how they could block my IP and it only affect one machine... Just checked again, the first machine works now. –  John Jan 21 '11 at 2:50
    
possible duplicate of Too many requests from my IP address? –  badp Jan 21 '11 at 8:48
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1 Answer

up vote 5 down vote accepted

There is a temporary automatic ban that is put up by our HAProxy instance when you hit our rate limiter. It should only last about 5 mins. If you'd like us to take a look we'll need the public IP at the time you can email to george AT stackoverflow DOT com

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Hi, how high is this rate limiter? Please. –  AnthonyMaia May 31 '12 at 12:58
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