http://www.eecs.harvard.edu/cs143/pa3/
http://www.crhc.uiuc.edu/~grier/projects/libipq.html
http://lists.netfilter.org/pipermail/netfilter-devel/2005-February/018631.html
TCP syn attack
http://www.networkdictionary.com/security/TCPSYNAttack.php?PHPSESSID=c2a79111d168faf
Summary of the netfilter developer workshop 2004
Harald Welte
http://www.netfilter.org/documentation/conferences/nf-workshop-2004-summary.html
Linux netfilter Hacking HOWTO
Netfilter Extensions HOWTO
Rusty’s Unreliable Guide To Kernel Hacking
Rusty’s Remarkably Unreliable Guides
Unreliable Guide To Hacking The Linux Kernel