[dns-operations] should recursors think there are only delegation data in tld name servers?

[Paul Vixie]

刘明星 wrote:
> what types of authoritative data are they in .de zone? For what? Does
> it comply with dns standards?

here are some example names, the first five returned from Farsight DNSDB
under qtype=A bailiwick=DE:

vixie at linux1:~/work/fsi/dnsdb_c$ ./dnsdb_query -r \*.de/a/de -l 5
;; record times: 2010-07-15 00:37:59 .. 2011-10-27 21:35:17
;; count: 291; bailiwick: de.
4.de.  A  212.227.111.250

;; record times: 2011-01-12 11:00:47 .. 2011-01-25 13:46:42
;; count: 25; bailiwick: de.
e.de.  A  81.91.170.47

;; record times: 2011-01-24 08:05:53 .. 2011-01-24 09:47:32
;; count: 2; bailiwick: de.
www.e.de.  A  81.91.170.47

;; record times: 2011-01-12 14:29:41 .. 2011-01-12 17:06:57
;; count: 3; bailiwick: de.
f.de.  A  81.91.170.47

;; record times: 2011-01-12 14:11:08 .. 2012-06-22 07:08:42
;; count: 1980; bailiwick: de.
g.de.  A  81.91.170.47

here are the first five MX's returned, this time in JSON format:

vixie at linux1:~/work/fsi/dnsdb_c$ ./dnsdb_query -r \*.de/mx/de -l 5 -j
{"count": 781, "time_first": 1280754502, "rrtype": "MX", "rrname":
"l.de.", "bailiwick": "de.", "rdata": ["10 vs-mail.hlkomm.net."],
"time_last": 1306128027}
{"count": 14, "time_first": 1317206234, "rrtype": "MX", "rrname":
"0m.de.", "bailiwick": "de.", "rdata": ["10 mail.transkom.net."],
"time_last": 1395390279}
{"count": 22, "time_first": 1280343163, "rrtype": "MX", "rrname":
"1s.de.", "bailiwick": "de.", "rdata": ["10 mail.lf.net."], "time_last":
1395896046}
{"count": 14, "time_first": 1279705996, "rrtype": "MX", "rrname":
"4n.de.", "bailiwick": "de.", "rdata": ["10 mail.transkom.net."],
"time_last": 1395356499}
{"count": 2, "time_first": 1300350010, "rrtype": "MX", "rrname":
"c4.de.", "bailiwick": "de.", "rdata": ["10 mail.lf.net."], "time_last":
1300350047}

in my opinion, these records do comply with DNS standards. other than a
rapidly introduced feature in BIND8 and BIND9 called "delegation-only",
and some ICANN rules for the new gTLD's concerning apex content, a zone
is a zone and can contain anything that the zone administrator wants it
to contain.

> _______________________________________________
> dns-operations mailing list
> dns-operations at lists.dns-oarc.net
> https://lists.dns-oarc.net/mailman/listinfo/dns-operations
> dns-jobs mailing list
> https://lists.dns-oarc.net/mailman/listinfo/dns-jobs