[dns-wg] AAAA lookup misbehaviour
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Joao Damas
Joao_Damas at isc.org
Thu Sep 9 11:12:41 CEST 2004
On 8 Sep, 2004, at 13:05, David Malone wrote: > As the next RIPE meeting is rolling up, I just thought I'd raise > the AAAA lookup misbehaviour thread again. To briefly remind you > of where we'd got to: > > 1) I'd written up a short describing the problem > with authoritative servers and recommending that > new name servers should be tested before deployment. > 2) Alvaro and Colm had highlighted some problems with > client resolver libraries, but it wasn't clear if > a description of these problems should live in the > same document. > 3) We were trying to figure out what action could be > taken to encourage people to fix existing problem > name servers. > > So, other than the hall of shame, what options do we have to > encourage people to fix their software? Writing a RIPE document. People use them as reference material when they are well written, both within and outside the RIPE region > Working with vendors > of DNS solutions is certainly a good idea, and the dns-wg's > name could be useful when convincing vendors to take action. > Sure, buy me a beer. I am easy to convince :-) Now seriously, we try to do the right thing, we may have bugs some times. For instance there was some time ago a bug that went like this: 1679. [bug] When there was a single nameserver with multiple addresses for a zone not all addresses were tried. [RT #11706] e.g. If the server had one AAAA and one A, then A would not be tried. They will mark all addresses bad if they get a bad response from one of the addresses (bad response != no response). Although you could argue this goes in your favour as IPv6 promoter. > Another possibility would be to recommend that when problem > DNS servers are found, then they should be considered lame > and so dropped from the advertised list of NSs for a zone. > Well, that would depend on the nature of the misbehaviour. I am looking forward to your DNS-wg contribution. Joao
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