The recent DDoS attack on FFXIV servers.

[Androir]

If there is no way to stop them. Why there are so many companys which say that they can stop them?

[Raven2014]

If there is no way to stop them. Why there are so many companys which say that they can stop them?

One simply word: infrastructure. I can tell you there is one example of a company that will never suffer from DDOS attack: Amazon. They have a HUGE capacity. I think it's said that during holiday every 1 min they're down the company stands to lose 5mil or something crazy like that, so they always have more than enough to handle even Christmas traffic. They also have their own subsidize of cloud service, so they can rent out excess capacity to off set the cost. Amazon does get DDOS time to time, but it just shrug it all off. The last time there was a concert effort to ram up a sustained attack on Amazon for 48h ... and its server was just like "lol scrubs!"

And ... how big is Amazon again? Because that's the kind of companies that can be considered safe from DDOS attack. I don't know what you mean by "many", because there certainly isn't that many. Either they're mega coporation, or some kind of back-end service provider with large enough capacity to spare, no one else is safe. In the end DDOS is brute force, and there is only so much efficient routing and coding can do, in the end it's simply a matter of outmuscle the attackers.

[reiichi]

One simply word: infrastructure. I can tell you there is one example of a company that will never suffer from DDOS attack: Amazon. They have a HUGE capacity. I think it's said that during holiday every 1 min they're down the company stands to lose 5mil or something crazy like that, so they always have more than enough to handle even Christmas traffic. They also have their own subsidize of cloud service, so they can rent out excess capacity to off set the cost. Amazon does get DDOS time to time, but it just shrug it all off. The last time there was a concert effort to ram up a sustained attack on Amazon for 48h ... and its server was just like "lol scrubs!"

And ... how big is Amazon again? Because that's the kind of companies that can be considered safe from DDOS attack. I don't know what you mean by "many", because there certainly isn't that many. Either they're mega coporation, or some kind of back-end service provider with large enough capacity to spare, no one else is safe. In the end DDOS is brute force, and there is only so much efficient routing and coding can do, in the end it's simply a matter of outmuscle the attackers.

Amazon does get hit with DDoSes though. As does Google Compute. And most other hosting companies. Their mitigations are different though. Amazon has multiple datacenters with mirrored content for static files like images, video, scripts, etc. That's not often the case for a game server because the database overhead to duplicate content in different physical locations would have some pretty hefty overhead. Something like the Lodestone likely uses a CDN though.

[whiskeybravo]

If there is no way to stop them. Why there are so many companys which say that they can stop them?

Because companies have a tendency to over-promise and under-deliver