In message <alpine.lsu.2.00.1410101712300.4...@hermes-1.csi.cam.ac.uk>, Tony Finch writes: > You might remember this discussion of name server bugs from a couple of > months ago. > > Tony Finch <d...@dotat.at> wrote: > > > > The fourth and fifth bugs are in the CommunityDNS name server which sends > > replies missing the OPT record if the buffer size is 512 or less. > > Sometimes it chops off replies in the middle of a resource record. For > > examples, try > > dig +norec +dnssec +bufsize=512 +ignore in. dnskey @ns7.cdns.net. > > dig +norec +dnssec +bufsize=512 +ignore in. aaaa @ns7.cdns.net.
See: "Percentage of EDNS aware servers that returned OPT record in truncated EDNS(0) response" and the various "EDNS(0) Truncated Respone Failure Reasons" graphs for more details in http://users.isc.org/~marka/ts.html > Tony. > -- > f.anthony.n.finch <d...@dotat.at> http://dotat.at/ > Trafalgar: Cyclonic in northwest, otherwise mainly northerly or northwesterly > 5 or 6. Slight or moderate. Showers in northwest. Good. -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org
