Dickson, Brian <[email protected]> wrote: > > While mail servers doing PTR look-up having problems is a potential > concern, keep in mind that AS112 is meant to be used for "local"-ish > zones, like 10.in-addr.arpa.
Right. I probably should have said more clearly that it works pretty well if that is the worst interop problem. I just remembered another problem, that many unices have antediluvian stub resolvers that write to syslog when they see a DNAME record, e.g. gethostby*.getanswer: asked for "42.143.232.128.in-addr.arpa IN PTR", got type "39" Apart from logging, the code ignores the DNAME record and happily processes the synthesized CNAME record, so it is mostly a benign bug apart from the annoying noise in the logs. If AS112 were to use DNAME this is likely to become a tiresome FAQ. Tony. -- f.anthony.n.finch <[email protected]> http://dotat.at/ Forties, Cromarty: East, veering southeast, 4 or 5, occasionally 6 at first. Rough, becoming slight or moderate. Showers, rain at first. Moderate or good, occasionally poor at first. _______________________________________________ DNSOP mailing list [email protected] https://www.ietf.org/mailman/listinfo/dnsop
