ATT blocks 4chan

NYSpeed Automotive NYSpeed Off Topic
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Granted, they apparently already unblocked them, but I’m interested in seeing what they do in response…

http://news.google.com/news?pz=1&ned=us&hl=en&q=4chan

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Ya this exploded on twitter last night. I have been following 4chan4ever and seeing what unfolds.

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same here.

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what is 4chan?

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X2

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you’re fired

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seriously.

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knowing the crap that 4chan pulls they probably took the .img server offline themselves, then made a stink about it blaming AT&T, just to see what happens…

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also, there is no fucking way that locutus doesn’t know what 4chan is.

Maybe this is a subtle hint that 4chan is about to be wiped away or something.

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that’s what I’m thinkin

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4chan4ever AT&T Seemingly ends blockade of #4CHAN, but the wound is deep. We’ll be sending out info later in the day, this is so not over

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hey /b/ I need your help. I accidentally 93MB of .rar files what should I do…is this dangerous ?

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:snky:

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No.

Look at this: ImageShack - Best place for all of your image hosting and image sharing needs

This was an ACK attack, which causes problems not only for the directly attacked host, but for other users as well.Ordinarily, a TCP connection is set up when you send a SYN packet to a website, such as 4chan, and then 4chan responds with a ACK, and then you respond again with a SYN-ACK.
Here is how an ACK attack works. I, the attacker, will send a SYN packet to 4chan, but I am pretending to be you, or your IP address. 4chan then sends an ACK packet to you, excepting a SYN-ACK in response. However, you did not initiate the connection, so you send a RST back to 4chan (or nothing at all, depending on your firewall settings). Then I do it again. And again. I effectively flood both you and 4chan with meaningless traffic. Your traffic problems are even worse, because if you have a firewall blocking the RST packets, then 4chan will send you 4 ACK packets (depending on configuration) for every SYN packet I send them. In this case, AT&T and other ISPs decided that the simplest solution to ending this DOS against their users was to block packets to and from 4chan (or a specific part of 4chan).

Just the internet community jumped all over this and saying its a breach of privacy and information and all that so this is why its gonna get funny.

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moar

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sauce

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SYN Cookies…

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If you have to ask then you don’t want to know…