Re: Hot to design syn-flood protection based on ip ?

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



J. Bakshi wrote:

Any clue ?


> Hello list,
>
> I have finally  come to know the bad effect of syn-flood protection.
>
> ``````````````````````
> iptables -N syn-flood
> iptables -A INPUT -i $IFACE -p tcp --syn -j syn-flood
> iptables -A syn-flood -m limit --limit 1/s --limit-burst 4 -j RETURN
> iptables -A syn-flood -j DROP
> ```````````````````````````
>
> The codes above drops the packets blindly if a single host initiate a
> syn-flood and as a result other hosts can't get the ports.  Is there a
> way to modify the rules so it drop the packets from the host which is
> sending the syn-flood packets ?
>
> eagerly waiting for a response.
> Thanks
> --
> To unsubscribe from this list: send the line "unsubscribe netfilter" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>   

--
To unsubscribe from this list: send the line "unsubscribe netfilter" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Netfilter Development]     [Linux Kernel Networking Development]     [Netem]     [Berkeley Packet Filter]     [Linux Kernel Development]     [Advanced Routing & Traffice Control]     [Bugtraq]

  Powered by Linux