[Dnsmasq-discuss] split DNS,
multiple --local entries and secondary DNS
simon at thekelleys.org.uk
Fri May 25 07:33:50 BST 2007
Martijn Brinkers (List) wrote:
>>> This seems not work for me. I use DNSMasq from Debian Sarge which is
>>> version 2.22. Could it be that that version does not support this?
>> I have tried the latest version from unstable (version 2.39) (did a
>> backport to sarge) but without success.
> It seems to be working when I do not add additional DNS servers to
> resolv.conf so it looks like:
> nameserver 127.0.0.1
> And add the following option to dnsmasq.conf
> resolv2.conf will now contain the external DNS settings.
> This seems to be working. Somehow it looks like the resolver that is used by
> the Debian system has a quick timeout and starts to try the next DNS server
> from the resolv.conf file. Using a separate list of DNS servers seem to
> solve this.
> Can someone confirm this behavior?
That makes some sense: dnsmasq relies on the resolver re-trying the
query to send it to the second server. If the resolver other servers to
use, it will re-try the query using those.
from man resolv.conf:
The algorithm used is to try a name server, and if the query times
out, try the next, until out of name servers, then repeat trying
all the name servers until a maximum number of retries are
Your fix looks to be entirely correct.
More information about the Dnsmasq-discuss