After last night's DDoS attack at the HE datacenter, I'm a bit curious about what I should install on my linode to protect against such an attack. I've been reading up on the packet flow rate options in iptables, but I wondered if anyone could recommend a really good tutorial/HOWTO/example of what an ideal iptables firewall setup to defend against DDoS would be. A lot of the documentation is very abstract–detailing every possible option you could implement with the software. Something that broke it down down more concretely for those of us that are learning about it would be ideal.
I've already got an iptablesrocks.org setup in place (that seems to be working nicely), but I need to pay attention to the DDoS side of things for those ports that are open…
Thanks in advance for your help! :D
j.