コンテンツ
はじめに
予想はしていましたが、下田市のワクチン接種予約開始日に予約サイトへ接続を試みるも全く繋がりません。
悲しいのでタイムアウト待ちの間にサーバの環境を調べました。
繋がらないサイト
エラー
500、502、503エラーが発生
500 - The request timed out.
The web server failed to respond within the specified time.502 - Web server received an invalid response while acting as a gateway or proxy server.
There is a problem with the page you are looking for, and it cannot be displayed. When the Web server (while acting as a gateway or proxy) contacted the upstream content server, it received an invalid response from the content server.503 Service Unavailable
HTTP Error 503. The service is unavailable.調査
サーバ
とりあえずdigで情報を見てみます。
$ dig shimoda.corona-yoyaku.net
; <<>> DiG 9.10.6 <<>> shimoda.corona-yoyaku.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 6848
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;shimoda.corona-yoyaku.net. IN A
;; ANSWER SECTION:
shimoda.corona-yoyaku.net. 2070 IN CNAME coronayoyaku-shimoda.azurewebsites.net.
coronayoyaku-shimoda.azurewebsites.net. 1396 IN CNAME ssl.coronayoyaku-shimoda.azurewebsites.net.
ssl.coronayoyaku-shimoda.azurewebsites.net. 43 IN A 40.74.134.10
;; Query time: 22 msec
;; SERVER: 240b:251:a301:3000:225:36ff:fe79:95b4#53(240b:251:a301:3000:225:36ff:fe79:95b4)
;; WHEN: Mon Jul 26 10:50:45 JST 2021
;; MSG SIZE rcvd: 137FQDN（shimoda.corona-yoyaku.net）をCNAMEで指定していますが、サーバ自体はcoronayoyaku-shimoda.azurewebsites.netになります。
このドメインからazureのWebサイトサービスを利用していることが分かります。
試しにazurewebsites.netで検索して見ると、他の自治体（静岡県内が大半）のワクチン予約サイトがずらっと出てきました。
静岡県ではこのサービスを使うことになっているのでしょうかね。
ドメイン
ドメイン情報はwhoisで確認できます。
$ whois corona-yoyaku.net
% IANA WHOIS server
% for more information on IANA, visit http://www.iana.org
% This query returned 1 object
refer: whois.verisign-grs.com
domain: NET
organisation: VeriSign Global Registry Services
address: 12061 Bluemont Way
address: Reston Virginia 20190
address: United States
contact: administrative
name: Registry Customer Service
organisation: VeriSign Global Registry Services
address: 12061 Bluemont Way
address: Reston Virginia 20190
address: United States
phone: +1 703 925-6999
fax-no: +1 703 948 3978
e-mail: info@verisign-grs.com
contact: technical
name: Registry Customer Service
organisation: VeriSign Global Registry Services
address: 12061 Bluemont Way
address: Reston Virginia 20190
address: United States
phone: +1 703 925-6999
fax-no: +1 703 948 3978
e-mail: info@verisign-grs.com
nserver: A.GTLD-SERVERS.NET 192.5.6.30 2001:503:a83e:0:0:0:2:30
nserver: B.GTLD-SERVERS.NET 192.33.14.30 2001:503:231d:0:0:0:2:30
nserver: C.GTLD-SERVERS.NET 192.26.92.30 2001:503:83eb:0:0:0:0:30
nserver: D.GTLD-SERVERS.NET 192.31.80.30 2001:500:856e:0:0:0:0:30
nserver: E.GTLD-SERVERS.NET 192.12.94.30 2001:502:1ca1:0:0:0:0:30
nserver: F.GTLD-SERVERS.NET 192.35.51.30 2001:503:d414:0:0:0:0:30
nserver: G.GTLD-SERVERS.NET 192.42.93.30 2001:503:eea3:0:0:0:0:30
nserver: H.GTLD-SERVERS.NET 192.54.112.30 2001:502:8cc:0:0:0:0:30
nserver: I.GTLD-SERVERS.NET 192.43.172.30 2001:503:39c1:0:0:0:0:30
nserver: J.GTLD-SERVERS.NET 192.48.79.30 2001:502:7094:0:0:0:0:30
nserver: K.GTLD-SERVERS.NET 192.52.178.30 2001:503:d2d:0:0:0:0:30
nserver: L.GTLD-SERVERS.NET 192.41.162.30 2001:500:d937:0:0:0:0:30
nserver: M.GTLD-SERVERS.NET 192.55.83.30 2001:501:b1f9:0:0:0:0:30
ds-rdata: 35886 8 2 7862B27F5F516EBE19680444D4CE5E762981931842C465F00236401D8BD973EE
whois: whois.verisign-grs.com
status: ACTIVE
remarks: Registration information: http://www.verisigninc.com
created: 1985-01-01
changed: 2017-10-05
source: IANA
# whois.verisign-grs.com
Domain Name: CORONA-YOYAKU.NET
Registry Domain ID: 2602292492_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.discount-domain.com
Registrar URL: http://gmo.jp
Updated Date: 2021-04-02T01:31:38Z
Creation Date: 2021-04-02T01:20:59Z
Registry Expiry Date: 2022-04-02T01:20:59Z
Registrar: GMO Internet, Inc. d/b/a Onamae.com
Registrar IANA ID: 49
Registrar Abuse Contact Email: abuse@gmo.jp
Registrar Abuse Contact Phone: +81.337709199
Domain Status: ok https://icann.org/epp#ok
Name Server: NS-A1.CONOHA.IO
Name Server: NS-A2.CONOHA.IO
Name Server: NS-A3.CONOHA.IO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-07-26T02:21:20Z <<<
# whois.discount-domain.com
Domain Name: corona-yoyaku.net
Registry Domain ID: 2602292492_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.discount-domain.com
Registrar URL: http://www.onamae.com
Updated Date: 2021-04-02T10:31:38Z
Creation Date: 2021-04-02T01:20:59Z
Registrar Registration Expiration Date: 2022-04-02T01:20:59Z
Registrar: GMO INTERNET, INC.
Registrar IANA ID: 49
Registrar Abuse Contact Email: abuse@gmo.jp
Registrar Abuse Contact Phone: +81.337709199
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: Not Available From Registry
Registrant Name: Whois Privacy Protection Service by VALUE-DOMAIN
Registrant Organization: Whois Privacy Protection Service by VALUE-DOMAIN
Registrant Street: 3-1 Ofuka-cho
Registrant Street: Grand Front Osaka Tower B 23F
Registrant City: Kita-ku Osaka-shi
Registrant State/Province: Osaka
Registrant Postal Code: 530-0011
Registrant Country: JP
Registrant Phone: +81.676342727
Registrant Phone Ext:
Registrant Fax: +81.663740121
Registrant Fax Ext:
Registrant Email: whoisproxy@value-domain.com
Registry Admin ID: Not Available From Registry
Admin Name: Whois Privacy Protection Service by VALUE-DOMAIN
Admin Organization: Whois Privacy Protection Service by VALUE-DOMAIN
Admin Street: 3-1 Ofuka-cho
Admin Street: Grand Front Osaka Tower B 23F
Admin City: Kita-ku Osaka-shi
Admin State/Province: Osaka
Admin Postal Code: 530-0011
Admin Country: JP
Admin Phone: +81.676342727
Admin Phone Ext:
Admin Fax: +81.663740121
Admin Fax Ext:
Admin Email: whoisproxy@value-domain.com
Registry Tech ID: Not Available From Registry
Tech Name: Whois Privacy Protection Service by VALUE-DOMAIN
Tech Organization: Whois Privacy Protection Service by VALUE-DOMAIN
Tech Street: 3-1 Ofuka-cho
Tech Street: Grand Front Osaka Tower B 23F
Tech City: Kita-ku Osaka-shi
Tech State/Province: Osaka
Tech Postal Code: 530-0011
Tech Country: JP
Tech Phone: +81.676342727
Tech Phone Ext:
Tech Fax: +81.663740121
Tech Fax Ext:
Tech Email: whoisproxy@value-domain.com
Name Server: ns-a1.conoha.io
Name Server: ns-a2.conoha.io
Name Server: ns-a3.conoha.io
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2021-04-02T10:31:38Z <<<GMOのお名前.comで取得されています。
おわりに
開始から2時間半が経過した時、突然サーバのレスポンスが返ってきました！
おそらく何かしら対応が入った模様です。
これにより、ようやくワクチン接種の予約が完了しました…！
やはり、予め想定される大量アクセスには事前のサーバ準備が不可欠です。
お金の問題もあるとは思いますが、ぜひとも対応を怠らないようにしたいですね。
