nanog mailing list archives
Re: DNS Amplification attack?
From: Christopher Morrow <morrowc.lists () gmail com>
Date: Tue, 20 Jan 2009 21:21:43 -0500
On Tue, Jan 20, 2009 at 9:16 PM, Kameron Gasso <kgasso-lists () visp net> wrote:
We're also seeing a great number of these, but the idiots spoofing the queries are hitting several non-recursive nameservers we host - and only generating 59-byte "REFUSED" replies. Looks like they probably just grabbed a bunch of DNS hosts out of WHOIS and hoped that they were recursive resolvers.
a point to bear in mind here is that... 'its working' is good enough for the bad folks :( no need to optimize when this works. Also, it's likely this isn't all of the problem the spoofed requestors are seeing these past few days :( -Chris
Current thread:
- DNS Amplification attack? Wil Schultz (Jan 20)
- Re: DNS Amplification attack? Raoul Bhatia [IPAX] (Jan 20)
- Re: DNS Amplification attack? David W. Hankins (Jan 20)
- Re: DNS Amplification attack? Mark Andrews (Jan 20)
- Re: DNS Amplification attack? David Coulthart (Jan 21)
- Re: DNS Amplification attack? Kameron Gasso (Jan 20)
- Re: DNS Amplification attack? Christopher Morrow (Jan 20)
- Re: DNS Amplification attack? Kameron Gasso (Jan 20)
- Re: DNS Amplification attack? Christopher Morrow (Jan 20)
- Re: DNS Amplification attack? Chris Adams (Jan 20)
- Re: DNS Amplification attack? Stuart Henderson (Jan 21)
- Re: DNS Amplification attack? Christopher Morrow (Jan 20)
- <Possible follow-ups>
- Re: DNS Amplification attack? jay (Jan 20)
- Re: DNS Amplification attack? Chris Adams (Jan 20)
- Re: DNS Amplification attack? jay (Jan 20)
- Re: DNS Amplification attack? Mark Andrews (Jan 20)
- Re: DNS Amplification attack? Crist Clark (Jan 21)
- Re: DNS Amplification attack? Chris Adams (Jan 21)
- Re: DNS Amplification attack? Chris Adams (Jan 20)