On Mon, Aug 31, 2020 at 10:12:04PM +0900,
Yasuhiro Orange Morishita / 森下泰宏 <[email protected]> wrote
a message of 18 lines which said:
> But it seems to be a little bit strange. The auth servers of cdc.gov
> zone serve unneed (and unsigned) akam.cdc.gov zone. But they still
> have DS RR for real akam.cdc.gov zone.
They also do not return a proper delegation:
% dig +dnssec +norec @icdc-us-ns2.cdc.gov. A akam.cdc.gov
; <<>> DiG 9.11.5-P4-5.1+deb10u2-Debian <<>> +dnssec +norec
@icdc-us-ns2.cdc.gov. A akam.cdc.gov
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 43497
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
; COOKIE: 70d47b392dfb22d2662352815f4d0d3fe1c90df99f508386 (good)
;; QUESTION SECTION:
;akam.cdc.gov. IN A
;; AUTHORITY SECTION:
akam.cdc.gov. 3600 IN SOA a1-43.akam.net. adhelpdsk.cdc.gov. (
612558384 ; serial
300 ; refresh (5 minutes)
180 ; retry (3 minutes)
1209600 ; expire (2 weeks)
3600 ; minimum (1 hour)
)
;; Query time: 98 msec
;; SERVER: 198.246.96.92#53(198.246.96.92)
;; WHEN: Mon Aug 31 16:46:23 CEST 2020
;; MSG SIZE rcvd: 129
% dig +dnssec +norec @icdc-us-ns2.cdc.gov. DNSKEY akam.cdc.gov
; <<>> DiG 9.11.5-P4-5.1+deb10u2-Debian <<>> +dnssec +norec
@icdc-us-ns2.cdc.gov. DNSKEY akam.cdc.gov
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44336
;; flags: qr aa; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags: do; udp: 4096
; COOKIE: 2e27a9b171983390a21696a65f4d0d54710de953e8dd107b (good)
;; QUESTION SECTION:
;akam.cdc.gov. IN DNSKEY
;; AUTHORITY SECTION:
akam.cdc.gov. 3600 IN SOA a1-43.akam.net. adhelpdsk.cdc.gov. (
612558384 ; serial
300 ; refresh (5 minutes)
180 ; retry (3 minutes)
1209600 ; expire (2 weeks)
3600 ; minimum (1 hour)
)
;; Query time: 98 msec
;; SERVER: 198.246.96.92#53(198.246.96.92)
;; WHEN: Mon Aug 31 16:46:44 CEST 2020
;; MSG SIZE rcvd: 129
Whuch may explain the strange error messages of DNSviz (the IP
addresses are for the parent zone).
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