nanog mailing list archives
Re: Open Resolver Problems
From: "Patrick W. Gilmore" <patrick () ianai net>
Date: Tue, 26 Mar 2013 18:48:27 +0800
Composed on a virtual keyboard, please forgive typos. On Mar 26, 2013, at 18:27, "Dobbins, Roland" <rdobbins () arbor net> wrote:
On Mar 26, 2013, at 3:13 PM, Nick Hilliard wrote:The whole point of this thread is that dns amplification hurts other people, not the resolver which is being abused.Actually, it often hurts the resolver(s) being abused, as well, leading to availability problems for those who legitimately need the recursive service in question.
On more than one occasion, the operator of an open resolver being used to amplify an attack at our network has called / emailed asking us to stop abusing them. It seems the query rate "we" were sending them was crippling their servers. Sometimes they threaten to filter us. How thoughtful of them! Reminds me of: "Yer h4x0ring me on port 80!!1!1!!1" -- TTFN, patrick
Current thread:
- Open Resolver Problems Jared Mauch (Mar 25)
- Re: Open Resolver Problems Mikael Abrahamsson (Mar 25)
- Re: Open Resolver Problems Nick Hilliard (Mar 25)
- Re: Open Resolver Problems Valdis . Kletnieks (Mar 25)
- Re: Open Resolver Problems Jared Mauch (Mar 25)
- Re: Open Resolver Problems Christopher Morrow (Mar 25)
- Re: Open Resolver Problems Valdis . Kletnieks (Mar 26)
- Re: Open Resolver Problems Nick Hilliard (Mar 26)
- Re: Open Resolver Problems Dobbins, Roland (Mar 26)
- Re: Open Resolver Problems Patrick W. Gilmore (Mar 26)
- Re: Open Resolver Problems Valdis . Kletnieks (Mar 26)
- Re: Open Resolver Problems Nick Hilliard (Mar 27)
- Re: Open Resolver Problems Alain Hebert (Mar 27)
- Re: Open Resolver Problems Rich Kulawiec (Mar 27)
- Re: Open Resolver Problems Nick Hilliard (Mar 27)
- Re: Open Resolver Problems Alain Hebert (Mar 27)
- Re: Open Resolver Problems Jared Mauch (Mar 27)
- Re: Open Resolver Problems Nick Hilliard (Mar 25)
- Re: Open Resolver Problems Mikael Abrahamsson (Mar 25)
- Re: Open Resolver Problems Chris Adams (Mar 26)
- Re: Open Resolver Problems Owen DeLong (Mar 26)
- Re: Open Resolver Problems Doug Barton (Mar 26)