1. jp.sharp ドメイン

2. NXDOMAIN 返答

SOA がおかしい返答が返るが、 これがどう扱われるか。(無視されるのでは)

$ dig -t any qmail.jp.sharp @ns1.sharp.co.jp

; <<>> DiG 9.16.1-Ubuntu <<>> -t any qmail.jp.sharp @ns1.sharp.co.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 49143
;; flags: qr aa rd; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 125424ce30f46a8ae0822bdb5f9c950b8e151ccfec36f12f (good)
;; QUESTION SECTION:
;qmail.jp.sharp.                        IN      ANY

;; AUTHORITY SECTION:
sharp.                  600     IN      SOA     ns1.sharp.co.jp. postmaster.sharp.co.jp. 2020103001 3600 1800 1209600 3600

;; Query time: 11 msec
;; SERVER: 61.214.248.154#53(61.214.248.154)
;; WHEN: 土 10月 31 07:34:51 JST 2020
;; MSG SIZE  rcvd: 133

3. DNSSEC

なし。 (設定失敗で見えなくなっていたか)

4. ところが

jp.sharp.               300     IN      CNAME   ualsharp.hs.llnwd.net.

69.28.187.147
69.28.157.216
        
Limelight Networks, Inc.
        2020-02-20 (8 months ago)       2020-10-27 (today)      8 months 

$ dig -t ns jp.sharp @a.gmoregistry.net.

; <<>> DiG 9.16.1-Ubuntu <<>> -t ns jp.sharp @a.gmoregistry.net.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57749
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 2, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
;; QUESTION SECTION:
;jp.sharp.                      IN      NS

;; AUTHORITY SECTION:
jp.sharp.               86400   IN      NS      tg1.sharp.co.jp.
jp.sharp.               86400   IN      NS      ns1.sharp.co.jp.

;; Query time: 8 msec
;; SERVER: 37.209.192.4#53(37.209.192.4)
;; WHEN: 火 10月 27 14:47:39 JST 2020
;; MSG SIZE  rcvd: 84

5. jp.sharp

???

$ dig -t ns jp.sharp @ns1.sharp.co.jp.

; <<>> DiG 9.16.1-Ubuntu <<>> -t ns jp.sharp @ns1.sharp.co.jp.
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 48837
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 0e4542cda66b78d5702eb6c45f97b1119b4314c8758a9cbd (good)
;; QUESTION SECTION:
;jp.sharp.                      IN      NS

;; ANSWER SECTION:
jp.sharp.               300     IN      CNAME   ualsharp.hs.llnwd.net.

;; Query time: 20 msec
;; SERVER: 61.214.248.154#53(61.214.248.154)
;; WHEN: 火 10月 27 14:33:05 JST 2020
;; MSG SIZE  rcvd: 100

6. history

cocorolife.jp.sharp.    301     IN      CNAME   ualsharp.hs.llnwd.net.
ualsharp.hs.llnwd.net.  59      IN      A       111.119.27.78
ualsharp.hs.llnwd.net.  59      IN      A       111.119.27.166

7. ???

なにさま?

$ dig -t any jp.sharp @ns1.sharp.co.jp

; <<>> DiG 9.16.1-Ubuntu <<>> -t any jp.sharp @ns1.sharp.co.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4197
;; flags: qr aa rd; QUERY: 1, ANSWER: 4, AUTHORITY: 2, ADDITIONAL: 3
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 82d2d238ff325a00987ad38f5f97dd5e9070e1ffb2a1eab3 (good)
;; QUESTION SECTION:
;jp.sharp.                      IN      ANY

;; ANSWER SECTION:
jp.sharp.               300     IN      CNAME   ualsharp.hs.llnwd.net.
jp.sharp.               300     IN      RRSIG   CNAME 8 2 300 20201118004422 20201019004422 26718 sharp. LsH+oUWxdZrqj61zD9MTNPpi9WEZjT5OIlpCyMxgTCT90Q8WS0oLftWO ki1nP4TNKfBAAfC4C70oiTc4t+ys0GQwnR7TEtv5VoN3kJx/89yQkCWU Kt9Oil8wr8ZjRj9/UbAgc+z+MgpuB/Qsmf9PlgtUpCGSTjtxP22klNv/ lVE=
jp.sharp.               3600    IN      NSEC    aquos-emm.jp.sharp. CNAME RRSIG NSEC
jp.sharp.               3600    IN      RRSIG   NSEC 8 2 3600 20201118004422 20201019004422 26718 sharp. lJjt52yhc08eTZgLkpRFY30bXHYh7YAZGuvPwI6acTD34tnWSrsp1Ssu dzQGIpoaNDPyp9Irr2gHIY8+mOk2lfw6ANOitYiLIxdlZ7F8LrqdMsTE NjuYoeSix0yuj1HzQkVaN7YRU1iuofOD53YiecqaxO26MV8zm1EsXo7C d+8=

;; AUTHORITY SECTION:
sharp.                  43200   IN      NS      tg1.sharp.co.jp.
sharp.                  43200   IN      NS      ns1.sharp.co.jp.

;; ADDITIONAL SECTION:
ns1.sharp.co.jp.        43200   IN      A       61.214.248.154
tg1.sharp.co.jp.        60      IN      A       61.214.248.155

;; Query time: 16 msec
;; SERVER: 61.214.248.154#53(61.214.248.154)
;; WHEN: 火 10月 27 17:42:06 JST 2020
;; MSG SIZE  rcvd: 549


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MoinQ: watch/zone/jp.sharp/未整理 (last edited 2022-02-08 23:25:44 by ToshinoriMaeno)