You might have noticed that this site has been up and down over the last 24 hours. We're undergoing a DDoS attack - depending on how long it continues, we may be spending some time later on sticking Cloudflare in front of the site, but for now we're crossing our fingers and hoping that whoever is pointing their botnet at us will get bored and wander off.
It's a *big* botnet. We've been seeing a DDoS that's roughly 110Mbps of SYN packets (307kps) to port 80. There's nothing terribly sensible our buddies at Mythic Beasts, who host this site, can do; it's pegged one CPU at 100% just managing the firewall connection state, and Apache has (unsurprisingly) run out of connections when it's at its worst.
We think that the ethernet wire is also full. Gigabit ethernet pads to 512 bytes, which is roughly 1.2Gbps on a 1Gbps link.
It's frustrating, but we're not suicidal (yet); for now we're taking the downtime to do the admin we need to do and steam through some email. I'll be posting regular updates on Twitter - https://twitter.com/#!/Raspberry_Pi
- please discuss below what sort of twonk thinks that DDoSing a charity is a smart thing to do.