DNS/キャッシュサーバ/DNSadvantageについて、ここに記述してください。

1. DNS advantage service

156.154.70.1, 156.154.71.1

「浸透問題」, Ghost Domain Names の心配がある。 (対策されたかも　-- ToshinoriMaeno 2012-04-05 23:04:29)

18:00d%DNSCACHEIP=156.154.70.1 dnsqr a www1.ghost2.qmail.jp 

1 www1.ghost2.qmail.jp:
97 bytes, 1+1+1+1 records, response, noerror
query: 1 www1.ghost2.qmail.jp
answer: www1.ghost2.qmail.jp 22 A 202.41.218.242
authority: ghost2.qmail.jp 3563 NS 1800.ns.ghost2.qmail.jp
additional: 1750.ns.ghost2.qmail.jp 3311 A 202.41.218.242

18:01d%DNSCACHEIP=156.154.70.1 dnsqr a www1.ghost2.qmail.jp 

1 www1.ghost2.qmail.jp:
97 bytes, 1+1+1+1 records, response, noerror
query: 1 www1.ghost2.qmail.jp
answer: www1.ghost2.qmail.jp 1 A 202.41.218.242
authority: ghost2.qmail.jp 3542 NS 1800.ns.ghost2.qmail.jp
additional: 1750.ns.ghost2.qmail.jp 3290 A 202.41.218.242

18:01d%DNSCACHEIP=156.154.70.1 dnsqr a www1.ghost2.qmail.jp 

1 www1.ghost2.qmail.jp:
92 bytes, 1+1+1+1 records, response, noerror
query: 1 www1.ghost2.qmail.jp
answer: www1.ghost2.qmail.jp 300 A 202.41.218.242
authority: ghost2.qmail.jp 3600 NS 1800.ns.ghost2.qmail.jp
additional: 1800.ns.ghost2.qmail.jp 3600 A 202.41.218.242

18:01d%DNSCACHEIP=156.154.70.1 dnsqr a 1810.ns.ghost2.qmail.jp 

1 1810.ns.ghost2.qmail.jp:
92 bytes, 1+1+1+1 records, response, noerror
query: 1 1810.ns.ghost2.qmail.jp
answer: 1810.ns.ghost2.qmail.jp 86400 A 202.41.218.242
authority: ghost2.qmail.jp 3600 NS 1800.ns.ghost2.qmail.jp
additional: 1800.ns.ghost2.qmail.jp 3600 A 202.41.218.242

18:01d%DNSCACHEIP=156.154.70.1 dnsqr a www1.ghost2.qmail.jp 

1 www1.ghost2.qmail.jp:
92 bytes, 1+1+1+1 records, response, noerror
query: 1 www1.ghost2.qmail.jp
answer: www1.ghost2.qmail.jp 281 A 202.41.218.242
authority: ghost2.qmail.jp 3517 NS 1800.ns.ghost2.qmail.jp
additional: 1800.ns.ghost2.qmail.jp 3517 A 202.41.218.242

18:01d%DNSCACHEIP=156.154.70.1 dnsqr a www1.ghost2.qmail.jp 

1 www1.ghost2.qmail.jp:
92 bytes, 1+1+1+1 records, response, noerror
query: 1 www1.ghost2.qmail.jp
answer: www1.ghost2.qmail.jp 275 A 202.41.218.242
authority: ghost2.qmail.jp 3511 NS 1800.ns.ghost2.qmail.jp
additional: 1800.ns.ghost2.qmail.jp 3511 A 202.41.218.242

%dig -t a www2.ghost2.qmail.jp @156.154.70.1 

; <<>> DiG 9.8.0-P4 <<>> -t a www2.ghost2.qmail.jp @156.154.70.1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 37464
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1

;; QUESTION SECTION:
;www2.ghost2.qmail.jp.          IN      A

;; ANSWER SECTION:
www2.ghost2.qmail.jp.   2147483597 IN   A       202.41.218.242

;; AUTHORITY SECTION:
ghost2.qmail.jp.        3500    IN      NS      0740.ns.ghost2.qmail.jp.

;; ADDITIONAL SECTION:
0740.ns.ghost2.qmail.jp. 3499   IN      A       202.41.218.242

;; Query time: 203 msec
;; SERVER: 156.154.70.1#53(156.154.70.1)
;; WHEN: Fri Apr  6 07:46:07 2012
;; MSG SIZE  rcvd: 92