On Fri, Mar 30, 2012 at 9:26 AM, Simon Kelley <si...@thekelleys.org.uk>wrote:
> On 29/03/12 20:12, richardvo...@gmail.com wrote: > >> >> On thing which might be interesting, is to define a new type of >> upstream server (maybe called a look-aside server) which dnsmasq will >> send a query to first, and which if it can't answer the query can >> return a custom return-code "Not known", which causes dnsmasq to then >> push the query into the standard server pathway. >> >> >> How's this help? Hasn't dnsmasq thrown away the information it would >> need to send the query to a second server at this point? >> > > The look-aside server speaks the DNS protocol, which implies that the > "Not known" reply includes the original query, giving dnsmasq the > information is needs to send the query on. > Ah, I wasn't aware that every reply includes the original request including all options.
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