> > > 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? Or is the fingerprint kept in a "not known" table, such that when the client tries again (and dnsmasq receives a second copy of the query), the look-aside is skipped and the normal servers are used? That would work, but add a non-negligible retry timeout to all queries which use the normal servers.
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