MoinQ:

1. watchNS/saitoshika-west.com

Contents

  1. watchNS/saitoshika-west.com
    1. saitoshika_west
    2. whois
    3. 移転前
    4. 移転後
    5. ???
    6. 残りカスの返事

fc2.com DNSの問題点が見えたのは幸運だった。-- ToshinoriMaeno 2018-02-23 01:32:38

1.1. saitoshika_west

https://twitter.com/saitoshika_west/status/962995223096737792 

WordPres専門のサーバー移転サービス「サイト引越し屋さん」にブログ移転を依頼。
FC2からWordPressへのスムーズな移転が実現！｜Re-urbanization -再都市化-

https://saitoshika-west.com/blog-entry-4788.html

-- ToshinoriMaeno 2018-02-12 15:36:38 

一番時間がかかったのはWordPressのデーマを決める事。

1.2. whois

Daily visitors: 2 403
Daily pageviews: 4 807
Alexa Rank: 1073424
Created:        2013-05-18
Expires:        2018-05-18
Owner:  PROTECT WHOIS (FC2,INC) 
Hosting company:        FC2 INC 
Registrar:      ENOM, INC.
IPs:    104.244.98.64   
DNS:    mdns1.fc2.com
mdns2.fc2.com

1.3. 移転前

問題のあるzone設定

$ dig -t ns saitoshika-west.com @mdns1.fc2.com 

; <<>> DiG 9.11.2 <<>> -t ns saitoshika-west.com @mdns1.fc2.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37396
;; flags: qr aa rd ad; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 4
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;saitoshika-west.com.           IN      NS

;; ANSWER SECTION:
saitoshika-west.com.    86400   IN      CNAME   saitoshika.blog.fc2.com.

;; AUTHORITY SECTION:
fc2.com.                86400   IN      NS      mdns1.fc2.com.
fc2.com.                86400   IN      NS      mdns2.fc2.com.
fc2.com.                86400   IN      NS      mdns3.fc2.com.

;; ADDITIONAL SECTION:
saitoshika.blog.fc2.com. 86400  IN      CNAME   blog-cach-ElasticL-HJNP94VKMIH2-1363093325.ap-northeast-1.elb.amazonaws.com.
mdns1.fc2.com.          86400   IN      A       208.71.107.72
mdns2.fc2.com.          86400   IN      A       208.71.107.73
mdns3.fc2.com.          86400   IN      A       208.71.107.74

;; Query time: 155 msec
;; SERVER: 54.218.49.223#53(54.218.49.223)
;; WHEN: Fri Jan 19 23:58:58 JST 2018
;; MSG SIZE  rcvd: 265

1.4. 移転後

 Domain Name: SAITOSHIKA-WEST.COM
   Registry Domain ID: 1802142118_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.enom.com
   Registrar URL: http://www.enom.com
   Updated Date: 2018-01-17T05:43:07Z
   Creation Date: 2013-05-18T08:34:15Z
   Registry Expiry Date: 2018-05-18T08:34:15Z
   Registrar: eNom, Inc.
   Registrar IANA ID: 48
   Registrar Abuse Contact Email:
   Registrar Abuse Contact Phone:
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: NS1.XSERVER.JP
   Name Server: NS2.XSERVER.JP
   Name Server: NS3.XSERVER.JP
   Name Server: NS4.XSERVER.JP
   Name Server: NS5.XSERVER.JP
   DNSSEC: unsigned

$ dnsq a saitoshika-west.com a.gtld-servers.net
1 saitoshika-west.com:
137 bytes, 1+0+5+0 records, response, noerror
query: 1 saitoshika-west.com
authority: saitoshika-west.com 172800 NS ns1.xserver.jp
authority: saitoshika-west.com 172800 NS ns2.xserver.jp
authority: saitoshika-west.com 172800 NS ns3.xserver.jp
authority: saitoshika-west.com 172800 NS ns4.xserver.jp
authority: saitoshika-west.com 172800 NS ns5.xserver.jp
tmaeno@u16:~$ dnsq a saitoshika-west.com ns1.xserver.jp
1 saitoshika-west.com:
53 bytes, 1+1+0+0 records, response, authoritative, noerror
query: 1 saitoshika-west.com
answer: saitoshika-west.com 86400 A 183.181.98.15

1.5. ???

面白い返事をするのだが、どういう意味だろう。 

$ dnsq ns saitoshika-west.com mdns1.fc2.com 
2 saitoshika-west.com:
94 bytes, 1+0+1+0 records, response, authoritative, nxdomain
query: 2 saitoshika-west.com
authority: saitoshika-west.com 86400 SOA mdns1.fc2.com hostmaster.saitoshika-west.com 5 28800 7200 604480 86400

$ dnsq any saitoshika-west.com mdns1.fc2.com 
255 saitoshika-west.com:
94 bytes, 1+1+0+0 records, response, authoritative, noerror
query: 255 saitoshika-west.com
answer: saitoshika-west.com 86400 SOA mdns1.fc2.com hostmaster.saitoshika-west.com 5 28800 7200 604480 86400

SOAレコードだけが残っているということのようだ。

-- ToshinoriMaeno 2018-01-21 23:09:48

1.6. 残りカスの返事

このNXDOMAIN返答はおかしい。 

$ dig -t a saitoshika-west.com @mdns1.fc2.com

; <<>> DiG 9.12.0 <<>> -t a saitoshika-west.com @mdns1.fc2.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2088
;; flags: qr aa rd ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;saitoshika-west.com.           IN      A

;; AUTHORITY SECTION:
saitoshika-west.com.    86400   IN      SOA     mdns1.fc2.com. hostmaster.saitoshika-west.com. 5 28800 7200 604480 86400

;; Query time: 125 msec
;; SERVER: 54.218.49.223#53(54.218.49.223)
;; WHEN: Tue Feb 13 00:43:24 JST 2018
;; MSG SIZE  rcvd: 94

$ dig -t a www.saitoshika-west.com @mdns1.fc2.com

; <<>> DiG 9.12.0 <<>> -t a www.saitoshika-west.com @mdns1.fc2.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 37180
;; flags: qr aa rd ad; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; WARNING: recursion requested but not available

;; QUESTION SECTION:
;www.saitoshika-west.com.       IN      A

;; AUTHORITY SECTION:
saitoshika-west.com.    86400   IN      SOA     mdns1.fc2.com. hostmaster.saitoshika-west.com. 5 28800 7200 604480 86400

;; Query time: 140 msec
;; SERVER: 54.218.49.223#53(54.218.49.223)
;; WHEN: Tue Feb 13 00:41:47 JST 2018
;; MSG SIZE  rcvd: 98