http://maguro.2ch.net/ was attacked this evening.
I was eating dinner when the attack happened and was not informed of the attack until 22:28 in the evening.
I stopped the attack approximately twenty minutes later.
There was another attack at 23:29, and it took approximately 10 minutes to stop the second attack.
2ch has an anti-ddos script called BBON. The BBON script is able to stop simple DDOS attacks very efficiently.
The first attack this evening began around 21:13 in the evening while I was at dinner.
When I was notified of the attack, the first thing I wondered was "how has this attack lasted so long, isnt BBON is supposed to stop attacks?"
Immediately I checked the BBON source code and discovered a few IP blocks used for P2 and find.2ch were white-listed.
I temporarily removed these from the white-list to see if it would help against the attack.
A few minutes later the attacks were stopped and BBON started filling up with Brazil's IP blocks.