1. watchA

2. おかしな返答

ns0.sfcは hcのNSでもあるから。

$ dig -t soa hc.keio.ac.jp @ns0.sfc.keio.ac.jp

; <<>> DiG 9.11.3-1ubuntu1.11-Ubuntu <<>> -t soa hc.keio.ac.jp @ns0.sfc.keio.ac.jp
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 39849
;; flags: qr aa rd; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 11
;; WARNING: recursion requested but not available

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 3be00e878f16f4a37b00c6b95ef3e94e8b152455ace1c9fe (good)
;; QUESTION SECTION:
;hc.keio.ac.jp.                 IN      SOA

;; ANSWER SECTION:
hc.keio.ac.jp.          86400   IN      SOA     nsm0.keio.ac.jp. postmaster.keio.ac.jp. 2020040800 10800 3600 1209600 3600

;; AUTHORITY SECTION:
hc.keio.ac.jp.          86400   IN      NS      ns.st.keio.ac.jp.
hc.keio.ac.jp.          86400   IN      NS      kogwy.cc.keio.ac.jp.
hc.keio.ac.jp.          86400   IN      NS      ns.hc.keio.ac.jp.
hc.keio.ac.jp.          86400   IN      NS      ns.sc.keio.ac.jp.
hc.keio.ac.jp.          86400   IN      NS      ns0.sfc.keio.ac.jp.
hc.keio.ac.jp.          86400   IN      NS      ns.mita.keio.ac.jp.

;; ADDITIONAL SECTION:
ns.hc.keio.ac.jp.       86400   IN      A       131.113.224.8
ns.st.keio.ac.jp.       3600    IN      A       131.113.1.8
ns.mita.keio.ac.jp.     86400   IN      A       131.113.192.8
ns0.sfc.keio.ac.jp.     3600    IN      A       133.27.4.121
kogwy.cc.keio.ac.jp.    3600    IN      A       131.113.1.1
ns.hc.keio.ac.jp.       86400   IN      AAAA    2001:df0:eb:4259::8
ns.st.keio.ac.jp.       3600    IN      AAAA    2001:df0:eb:8001::8
ns.mita.keio.ac.jp.     86400   IN      AAAA    2001:df0:eb:2106::8
ns0.sfc.keio.ac.jp.     3600    IN      AAAA    2001:df2:c900:1100::4:121
kogwy.cc.keio.ac.jp.    3600    IN      AAAA    2001:df0:eb:8001::1

;; Query time: 20 msec
;; SERVER: 133.27.4.121#53(133.27.4.121)
;; WHEN: Thu Jun 25 09:01:18 JST 2020
;; MSG SIZE  rcvd: 466

3. history


CategoryDns CategoryWatch CategoryTemplate

MoinQ: watchNS/ac.jp/keio.ac.jp/hc (last edited 2022-03-31 14:51:16 by ToshinoriMaeno)