Re: Excessive Netflix DNS Traffic?

[Dave Temkin <dave () temk in>]

We (Netflix) are investigating this now.
-Dave






On Sat, Oct 15, 2016 at 12:44 PM -0500, "Velocity Lists" <volists () staff velocityonline net> wrote:










We have seen it as well.
In our cases it is all TCP DNS traffic as well.

Velocity Online
850-205-4638

On Fri, Oct 14, 2016 at 11:43 AM, Eamon Bauman 
wrote:

> We're rate limiting it now, but it's definitely bad behavior. When I open
> the flood gates, over a 5-min sample from a single host I received well
> over 61,000 queries.
> The size of the records being requested cause this to be an (unintended)
> amplification attack, as a 30Mbps inbound sum is getting amplified to
> 150-200Mbps outbound.
>
> On Thu, Oct 13, 2016 at 7:52 PM, Josh Reynolds 
> wrote:
>
> > Same here :)
> >
> > On Oct 13, 2016 1:09 PM, "Ryan, Spencer"  wrote:
> >
> > > I was going to point you to the reddit thread about it, but it looks to
> > > be your thread :)
> > >
> > >
> > > Spencer Ryan | Senior Systems Administrator | sryan () arbor net >> sryan () arbor net>
> > > Arbor Networks
> > > +1.734.794.5033 (d) | +1.734.846.2053 (m)
> > > www.arbornetworks.com
> > >
> > >
> > > ________________________________
> > > From: NANOG  on behalf of Eamon Bauman <
> > > eamon () eamonbauman com>
> > > Sent: Thursday, October 13, 2016 10:26:57 AM
> > > To: nanog () nanog org
> > > Subject: Excessive Netflix DNS Traffic?
> > >
> > > Hi all,
> > >
> > > Is anyone seeing excessive DNS traffic from game consoles (Xbox One,
> PS4)
> > > running Netflix? Starting 9/29 we have been seeing significant volume of
> > > DNS traffic from game consoles on our campus to our caching recursive
> > > boxes. Logs show repeated requests for api-global.netflix.com and
> > > nrdp.nccp.netflix.com.
> > >
> > > Anyone else experiencing this?
> > >
> > > Eamon