On Sat, Jan 10, 2015 at 8:37 PM, Paul S. <contact@winterei.se> wrote:
While it indeed is true that attacks up to 600 gbit/s (If OVH and CloudFlare's data is to be believed) have been known to happen in the wild, it's very unlikely that you need to mitigate anything close.
Agree that trusting others' numbers is unwise (there's a bias to inflate sizes), but from personal experience I can say that their claims are plausible. The average attack is usually around the 10g mark (That too barely) -- so
even solutions that service up to 20g work alright.
I'm not sure how to compute an "average" -- I generally just track the maximums. I suspect some reports of 10Gbps attacks are simply that the attack saturated the victim's link, and they were unable to measure the true size. (I agree there are many actual 10Gbps attacks also, of course -- attackers know this size will usually work, so they don't waste resources.) Obviously, concerns are different if you're an enterprise that's a DDoS
magnet -- but for general service providers selling 'protected services,' food for thought.
Even if you're just a hosting provider, your customers may be DDoS magnets. Coincidentally, at the time you pressed "send", we were seeing a 40Gbps attack targeting a customer. Damian On 1/11/2015 午後 12:48, Damian Menscher wrote:
On Thu, Jan 8, 2015 at 9:01 AM, Manuel Marín <mmg@transtelco.net> wrote:
We are currently evaluating different options (Arbor, Radware, NSFocus, RioRey) and I would like to know if someone is using the cloud based solutions/scrubbing centers like Imperva, Prolexic, etc and what are the advantages/disadvantages of using a cloud base vs an on-premise solution. It would be great if you can share your experience on this matter.
On-premise solutions are limited by your own bandwidth. Attacks have been
I was wondering what are are using for DDOS protection in your networks. publicly reported at 400Gbps, and are rumored to be even larger. If you don't have that much network to spare, then packet loss will occur upstream of your mitigation. Having a good relationship with your network provider(s) can help here, of course.
If you go with a cloud-based solution, be wary of their SLA. I've seen some claim 100% uptime (not believable) but of course no refund/credits for downtime. Another provider only provides 20Gbps protection, then will null-route the victim.
On Sat, Jan 10, 2015 at 4:19 PM, Charles N Wyble <charles@thefnf.org> wrote:
Also how are folks testing ddos protection? What lab gear,tools,methods
are you using to determine effectiveness of the mitigation.
Live-fire is the cheapest approach (just requires some creative trolling) but if you want to control the "off" button, cloud VMs can be tailored to your needs. There are also legitimate companies that do network stress testing.
Keep in mind that you need to test against a variety of attacks, against all components in the critical path. Attackers aren't particularly methodical, but will still randomly discover any weaknesses you've overlooked.
Damian