nanog mailing list archives
Re: DNS Hijacking by Cox
From: "Steven M. Bellovin" <smb () cs columbia edu>
Date: Sun, 22 Jul 2007 21:46:19 -0400
On Sun, 22 Jul 2007 21:40:05 -0400 "Patrick W. Gilmore" <patrick () ianai net> wrote:
On Jul 22, 2007, at 9:29 PM, Steven M. Bellovin wrote:On Sun, 22 Jul 2007 14:56:13 -0700 "Andrew Matthews" <exstatica () gmail com> wrote:It looks like cox is hijacking dns for irc servers.And people wonder why I support DNSsec....Steve, One of us is confused. It might be me, but right now I think it's you. To be clear, here is the situation as I understand it: Cox has configured their recursive name servers such that when an end user queries the recursive server for a specific host name (names?), the recursive server responds with an IP address the host's owner did not configure. How exactly is DNSSEC going to stop them from doing this?
If my host expects the response to be signed and it isn't, my host can scream bloody murder. The whole point of DNSSEC is to prevent random changes to DNS replies, whether by hackers or by ISPs. Yes, they can change it, but they can't change it without being caught. --Steve Bellovin, http://www.cs.columbia.edu/~smb
Current thread:
- Re: DNS Hijacking by Cox, (continued)
- Re: DNS Hijacking by Cox Valdis . Kletnieks (Jul 23)
- Re: DNS Hijacking by Cox David W. Hankins (Jul 23)
- Re: DNS Hijacking by Cox Joe Greco (Jul 23)
- RE: DNS Hijacking by Cox Raymond L. Corbin (Jul 23)
- Re: DNS Hijacking by Cox Joe Greco (Jul 23)
- RE: DNS Hijacking by Cox David Schwartz (Jul 23)
- Re: DNS Hijacking by Cox Andrew Matthews (Jul 23)
- Re: DNS Hijacking by Cox Joe Greco (Jul 22)
- Re: DNS Hijacking by Cox Patrick W. Gilmore (Jul 22)
- Re: DNS Hijacking by Cox Steven M. Bellovin (Jul 22)
- Re: DNS Hijacking by Cox John C. A. Bambenek (Jul 22)
- RE: DNS Hijacking by Cox Marcus H. Sachs (Jul 22)
- Re: DNS Hijacking by Cox Steven M. Bellovin (Jul 22)
- Re: DNS Hijacking by Cox James Hess (Jul 22)
- Re: DNS Hijacking by Cox Perry Lorier (Jul 23)
- Re: DNS Hijacking by Cox Sean Donelan (Jul 23)
- Re: DNS Hijacking by Cox James Hess (Jul 23)
- Re: DNS Hijacking by Cox Perry Lorier (Jul 23)
- Re: DNS Hijacking by Cox Mattias Ahnberg (Jul 24)
- Re: DNS Hijacking by Cox Peter Dambier (Jul 24)