[bitfolk] Treason Uncloaked!

I have recently started receiving TCP Treason Uncloaked messages in my daily logwatch reports from my vps on Urquell. They appear to be linked to port 80. OK, I understand what the message is about, the other host has suddenly decided to reduce the size of the window during a transaction. Googling for reasons and causes suggests it is something between and out and out attack, a kernel or apache bug, a hiccup in TCP and is therefore extremely serious/nothing to worry about and that I should ignore it/upgrade all software/run round pulling out all my hair. I am running the latest version of everything (that is available from the lenny repository). The httpd section of the logwatch report tells me that there have been a number of attempts to use a known hack and it responded with a 501, but they were reported with an ipv4 address and the treason reports had an address that appeared to be ipv6 (though attempts to trace it failed) There aren't many incidents in a day, but I wondered what advice/comments users here might be able to give and, showing my ignorance here, could this be related in some way - I've no idea how - to the recent urquell problems? Keith -- Keith Williams Solo bike ride, John O'Groats to Land's End starting 29 August 2010, in aid of Willen Hospice. Please make a donation at http://justgiving.com/SimonsTrip