On Fri, Jul 09, 2021 at 02:35:29PM +0200, Petr Menšík wrote: > On 6/16/21 1:26 PM, Trey Sis wrote: > > On 6/14/2021 1:43, Trey Sis wrote: > >> On 6/13/2021 22:01, Geert Stappers wrote: > >>> warning: 1 line adds whitespace errors. > >> > >> My bad! Fixed. Find the new patch attached to this message. > >> > > > > Hello everyone, > > > > I was wondering if anyone has any suggestions or objections for the > > patch? > > > > I still think it would be very valuable for many setups out there to > > drop A records. Most OS don't query for AAAA if there is no IPv6 > > connection. But none don't query for A if there is no IPv4. That often > > causes problems with applications that did not (yet) implement happy > > eyeballs. Getting this upstream would make it much easier to handle > > IPv6-only environments. > > > > What do you think? > > > Hi Trey, > > Are there any specific applications requiring this patch? It seems to me > most of work should be spent on applications not handling IPv4 addresses > correctly. Also, I would implement filtering of both address families if > it is required. > > Are there specific applications, where we can help escalate the problem > on their side instead? As you have already said, when they ask for A > address, they should receive one. Whether it is useful or not, clients > should be able to process it. And skipping to IPv6 in case of no IPv4 > connectivity should be immediate. We lack full IPv6 connectivity at > office, so far I know only svn is not able to switch to IPv4 only. Which > is solved by switching to git. Filtering of AAAA record would have > solved it too. > >
Quoting post that started this email thread: } I have created a patch that adds an option to dnsmasq to filter } out A record requests. This is particularly suitable for IPv6-only } environments. Some software (especially NodeJS) will reorder DNS } requests giving priority to A records, irrespective of IPv4 } connectivity of the host. My patch filters A records, while AAAA } records are returned. Short answer to > Do you have examples of applications, where this change would help? NodeJS Groeten Geert Stappers -- Silence is hard to parse _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
