More on Skype Outage

A couple of messages of interest from p2p-hackers mailing list (both are from the same person - Julian Cain). http://lists.zooko.com/pipermail/p2p-hackers/2010-December/002693.html - There are ~100,000 standby supernodes at any one moment also the hardcoded supernodes are for the most part installed into universities as you state. I believe this to be an automated event. If you compare which supernodes went down to those that didn't the version numbers are similar. I've captured these packets and decrypted them and currently looking into my findings. Most of the supernodes were non-responsive at ~12:00 EST. There were only ~2k routing traffic at the peak of this event and the network requires ~71,000 to support peak load hours. It will be interesting to hear what they claim happened. http://lists.zooko.com/pipermail/p2p-hackers/2010-December/002700.html - As I mentioned yesterday I believe this to be an attack on the skype object list cmd parameter in certain versions of skype for windows. More to come on that. Skype is not answering these questions yet but I'm sure PR will produce the trigger and not engineering. This will require an update to skype because one fault lies in the static supernode list which points to these suspect versions of skype which still remain offline. I'm completing a skype UDP probe tool to gather statistics that should give more insight into what nodes failed and perhaps why they remain down. He has also posted a video of his purported Skype analysis tools in action - http://www.youtube.com/watch?v=YHpFIMlItrM