[Bug 1231893] [NEW] dnsmasq sometimes lose primary dns (saucy)

Simon Kelley simon at thekelleys.org.uk
Fri Sep 27 09:56:52 UTC 2013


On 27/09/13 10:37, Franck wrote:
> Public bug reported:
>
> Since I upgraded to Saucy, my local dnsmasq instance seems to lose its primary dns server and fallback to secondary dns.
> Since the primary dns is a dnsmasq instance that knows of local servers, and the secondary one is external, my local dnsmasq instance fails to resolv local server names.
>
> This does not happen on startup, it happens after some time. Restarting solves the issue.
> It does not happen on Raring...
>
> not sure where to look for to resolve this issue...
>

Dnsmasq doesn't consider the DNS servers to be "primary" and 
"secondary". They're both equivalent, and which ever answers fastest 
will be used. Every so often, the "race" is re-run, with a query sent to 
all servers, and the one which answers first becoming the new preferred 
server.

It's possible to change this behaviour to something more like what 
you're expecting with the "strict-order" dnsmasq config flag. It's 
possible that was set in Raring and is no longer in Saucy, or you might 
just have been lucky before. Leaving it to the Ubuntu devs to answer that.


Cheers,

Simon.

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Title:
  dnsmasq sometimes lose primary dns (saucy)

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