AT&T Blocks 4chan?
Sunday, July 26th, 2009It appears that AT&T has blocked a subset of sites that hang off of 4chan.org. As of 11:15PST, the block was lifted.
AT&T has released a statement:
Beginning Friday, an AT&T customer was impacted by a denial-of-service attack stemming from IP addresses connected to img.4chan.org. To prevent this attack from disrupting service for the impacted AT&T customer, and to prevent the attack from spreading to impact our other customers, AT&T temporarily blocked access to the IP addresses in question for our customers. This action was in no way related to the content at img.4chan.org; our focus was on protecting our customers from malicious traffic.
Overnight Sunday, after we determined the denial-of-service threat no longer existed, AT&T removed the block on the IP addresses in question. We will continue to monitor for denial-of-service activity and any malicious traffic to protect our customers.
OK — so AT&T was acting to protect quality of service to customers that may have been impacted by a DDoS attack. Fair enough, though I question the means a bit (and admit fully that I have been too long out of the ISP business to claim these questions are anything but me being ignorant).
Was img.4chan.org hacked and, thus, AT&T walled it off because it was the source of the DDoS attack? Not sure how the “distributed” part comes in to play when an attack is sourced from a relatively small set of machines (I’m assuming img.4chan.org is more than one machine).
The initial report on the nanog list implies that the 4chan server was the source of the attacks and, thus, blocking ensued. Sounds like the server was hacked. Or spoofed?
Bottom line, though, is why the heck did it take AT&T so long to actually issue a statement somewhere useful?
I’m still in the market for a new ISP, just not quite as proactively.
Thus, I’ll continue to keep this post updated with suggested ISPs that folks submit. Feel free to add one in the comments. If you do, I’ll add the link/info to the article and likely delete the comment.
(To be precise, I don’t care about my ability to reach 4chan. I do care very much about network neutrality. I remember the last time the big providers went against net neutrality in the early 90s. It sucked.)
The suggestions, in no particular order:
- Raw Bandwidth Communications, Inc.
- No fussiness.
- Speakeasy
- No stupid policies of what you can/cannot do (within reason). I have heard good things about Speakeasy, too.
- Sonic.net
- Lots of raves for sonic.net. Shell access, no problems, good customer support, etc…
- Verizon’s FIOS
- Heard several good things about FIOS. Unfortunately, not available here (but keeping it in the “suggestions” because the reviews are good, where available).
The rejection(s). Companies that do stupid things to traffic.
- Comcast
- Comcast screws with BitTorrent traffic. I use BT for a variety of quite legitimate reasons, including for my day job. Doesn’t matter how easy it is to workaround, such a policy is a non-starter for me. Also, Comcast’s rates make it slightly cheaper to buy internet w/cable service. I don’t want cable TV in the house.






