
FreeBSD: accf_http(9)

make sure HEAD through proxy works or is rejected.

http://msdn.microsoft.com/msdnmag/issues/1000/Winsock/
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/fs/i_o_completion_ports.asp

http://tia.mat.br/blog/html/tags/lwan.html
https://github.com/lpereira/lwan
