Phillip Hallam-Baker <[email protected]> wrote: > > So lets say you want to connect to www.example.com via HTTP, the DNS > queries might be: > > www.example.com ? A > www.example.com ? AAAA > _80._tcp.www.example.com ? TSLA > _http._tcp.www.example.com ? SRV > _http._tcp.www.example.com ? ESRV (A security policy record TBS) > > So the above would be five separate DNS protocol messages all framed > in a single UDP packet. > > In most cases the results will fit in a single packet as well. > > Taking away the performance penalty for multiple record lookups would > make a huge difference to the viability of proposals to extend DNS > discovery services.
If you already have a TCP connection open to your recursive server then you can get the same performance with the current DNS protocol. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ Lundy, Fastnet: Northeast 4 or 5, veering southeast 5 to 7. Moderate or rough. Rain later in Fastnet. Moderate or good, occasionally poor at first. _______________________________________________ dns-privacy mailing list [email protected] https://www.ietf.org/mailman/listinfo/dns-privacy
