On Mon, Sep 27, 2021 at 10:45:25PM +0100, Simon Kelley wrote: > > I think that this is a 2.86 problem. There are two cases when dnsmasq > will try another server with the same query: > > 1) When a client retries the query. > 2) When the first server returns REFUSED. > > In the second case, it's important to give up when all available servers > have returned REFUSED, otherwise the query keeps bouncing forever. 2.86 > got the two cases mixed up and implemented that behavior for client > retries too. That's a bug. > > https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=2561f9fe0eb9c0be1df48da1e2bd3d3feaa138c2 > > should fix it. > > > Please test.....
This seems to work well. Currently my Wifi connection is stable, thus I disconnected the antenna to simulate the problem: $ host kernel.org ;; connection timed out; no servers could be reached Dnsmasq properly forwarded the client retry: Sep 28 19:00:03 dnsmasq[32598]: 4 127.0.0.1/35962 query[A] kernel.org from 127.0.0.1 Sep 28 19:00:03 dnsmasq[32598]: 4 127.0.0.1/35962 forwarded kernel.org to 192.168.178.1 Sep 28 19:00:08 dnsmasq[32598]: 5 127.0.0.1/35962 query[A] kernel.org from 127.0.0.1 Sep 28 19:00:08 dnsmasq[32598]: 5 127.0.0.1/35962 forwarded kernel.org to 192.168.178.1 After reattaching the antenna: $ host kernel.org kernel.org has address 198.145.29.83 kernel.org mail is handled by 10 mail.kernel.org. Sep 28 19:00:51 dnsmasq[32598]: 6 127.0.0.1/54047 query[A] kernel.org from 127.0.0.1 Sep 28 19:00:51 dnsmasq[32598]: 6 127.0.0.1/54047 forwarded kernel.org to 192.168.178.1 Sep 28 19:00:51 dnsmasq[32598]: 6 127.0.0.1/35962 reply kernel.org is 198.145.29.83 Sep 28 19:00:51 dnsmasq[32598]: 6 127.0.0.1/54047 reply query is duplicate Sep 28 19:00:51 dnsmasq[32598]: 7 127.0.0.1/41845 query[AAAA] kernel.org from 127.0.0.1 Sep 28 19:00:51 dnsmasq[32598]: 7 127.0.0.1/41845 forwarded kernel.org to 192.168.178.1 Sep 28 19:00:51 dnsmasq[32598]: 7 127.0.0.1/41845 reply kernel.org is NODATA-IPv6 Sep 28 19:00:51 dnsmasq[32598]: 8 127.0.0.1/42436 query[MX] kernel.org from 127.0.0.1 Sep 28 19:00:51 dnsmasq[32598]: 8 127.0.0.1/42436 forwarded kernel.org to 192.168.178.1 Sep 28 19:00:51 dnsmasq[32598]: 8 127.0.0.1/42436 reply kernel.org is <MX> Thanks, Johannes _______________________________________________ Dnsmasq-discuss mailing list Dnsmasq-discuss@lists.thekelleys.org.uk https://lists.thekelleys.org.uk/cgi-bin/mailman/listinfo/dnsmasq-discuss
