What does error 24 mean? Also how does nginx handle the Slowloris tool?

[gunblad3]

Thanks Maxim, that's the most informative info on this I've seen so far :)

What I meant by my third question was: where/how does nginx cache incomplete requests that are "still being sent" from the client(, if it does so in the first place)?  In memory?

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,13111,13580#msg-13580