On 17 Dec 2015, at 8:12, Masataka Ohta wrote: > URI RR can not be used by applications without URL specifications, > whereas SRV can be used by any applications using hostnames (and > having IANA registered (or, well known?) service name). If you as an application query for a specific service, you should be prepared to receive all URI schemes that can be used for that service. I.e. if you query for _http._tcp.example.com. it would be confusing and weird if you get a SIP-URI scheme back. And if you get one you do not understand, throw it away. It is similar to get a redirect in HTTP to a URI scheme you can not handle. paf
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