http://cr.yp.to/syncookies.html Syn Cookies are a Kernel Capabilities, not a Netfilter one. The rate limit just "rate" incoming TCP packet with SYN flag set. ----- Original Message ----- From: "augusto.favari" <augusto.favari@bol.com.br> To: <netfilter@lists.netfilter.org> Sent: Thursday, December 19, 2002 12:08 PM Subject: SYN Cookies Hi! I was looking for SYN Cookies help about SYN flooding. What is the difference about just allowing the SYN cookies system by default in the kernel and using the IP tables rate-limit function ? Iptables can use SYN cookies, can't it? Thanks, Augusto __________________________________________________________________________ Venha para a VilaBOL! O melhor lugar para você construir seu site. Fácil e grátis! http://vila.bol.com.br