Re: [LARTC] syn flood protection - inside initiated attacks

2005-03-23 Thread Nguyen Dinh Nam
IMO, you have to --limit for each of the computer separately (1 chain for each IP address), otherwise you will block both the instruder and the legitimate users. Perhaps the better solution is to install an IDS and completely block instruder, wait until he/she contacts you and ask for worm remo

[LARTC] syn flood protection - inside initiated attacks

2005-03-23 Thread Ming-Ching Tiew
Perhaps someone will help me on this :- I have read a lot of examples of syn flood protect on the INPUT chain. That I have no question at all. I wonder if it make sense to perform syn flood protection at the FORWARD chain ? If packets are originated from a LAN worm, and are not targetted at the