Re: over a 1,000,000,000 individual ips to block

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

 



Alex Sirbu wrote:
For blocking pourposes why don't you use blackholes ?
I have a webserver that is permanently under DoS attacks , so I use blackholes.

Routing table can have million of rules or static routes, so is not a problem .

Let's say you want to block ip 11.22.33.44 . just type :

#ip route add blackhole 11.22.33.44/32

and all packets to 11.22.33.44 will be discarded.

All packets to 11.22.33.44 is discarded...but will 11.22.33.44 be able to generate a connection socket?

if you type than : #ip ro | grep blackhole you will see all blackholes defined by you

How maintainable is such a list compared to iptables which has iptables-save and iptables-restore?

you can blackhole your incomming traffic, but be carefull what you are doing .


Is there something I am missing here?


[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