On 19/07/2018 15:36, Patrick McManus wrote: > [replying to myself] I see now that the wildcards are part of things > like axfr which form an open definition for interoperability.. so they > are a wire protocol element of a sort. Thanks!
Kind of. Wildcards are carried in AXFR so that primary and secondary name servers both know to synthesise the required records. It is technically possible to explicitly ask for `*.example.com` to test for the presence of a wildcard, but otherwise the synthesis is done entirely on the server side and the `*` does *not* usually appear in the DNS wire protocol. Ray _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
