#author("2019-07-12T11:04:27+09:00","default:honma","honma")
#author("2019-10-02T09:08:18+09:00","default:honma","honma")
* Let's Encrypt の導入 [#z1809363]

[[Let's Encrypt:https://letsencrypt.org/]]には、日本語のサイトが正式には存在しない。~
[[Let's Encrypt 総合ポータル:https://free-ssl.jp/]]を参考にしてみる。~

Debian 9 用の Certbot パケージは Stretch backports リポジトリから取得するため、 backports リポジトリが有効にする。

 $ sudo nano /etc/apt/sources.list
 以下を追加
 deb http://ftp.debian.org/debian stretch-backports main
 
 $ sudo apt update

** Let's Encrypt の導入 [#w6c8136b]

 $ sudo apt -t stretch-backports install certbot
 $ sudo service apache2 stop
 $ sudo certbot certonly --webroot -w <ドキュメントルート> -d <ドメイン> -d <サブドメイン>
 Saving debug log to /var/log/letsencrypt/letsencrypt.log
 Plugins selected: Authenticator webroot, Installer None
 Enter email address (used for urgent renewal and security notices) (Enter 'c' to
 cancel): <メールアドレス>
 
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Please read the Terms of Service at
 https://letsencrypt.org/documents/LE-SA-v1.2-November-15-2017.pdf. You must
 agree in order to register with the ACME server at
 https://acme-v02.api.letsencrypt.org/directory
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 (A)gree/(C)ancel: A ... ここは許諾して
 
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Would you be willing to share your email address with the Electronic Frontier
 Foundation, a founding partner of the Let's Encrypt project and the non-profit
 organization that develops Certbot? We'd like to send you email about our work
 encrypting the web, EFF news, campaigns, and ways to support digital freedom.
 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 (Y)es/(N)o: N ... ここは任意
 Obtaining a new certificate
 Performing the following challenges:
 http-01 challenge for <ドメイン>
 http-01 challenge for <サブドメイン>
 Using the webroot path <ドキュメントルート> for all unmatched domains.
 Waiting for verification...
 Cleaning up challenges
 
 IMPORTANT NOTES:
  - Congratulations! Your certificate and chain have been saved at:
    /etc/letsencrypt/live/<ドメイン>/fullchain.pem
    Your key file has been saved at:
    /etc/letsencrypt/live/<ドメイン>/privkey.pem
    Your cert will expire on 20xx-xx-xx. To obtain a new or tweaked
    version of this certificate in the future, simply run certbot
    again. To non-interactively renew *all* of your certificates, run
    "certbot renew"
  - Your account credentials have been saved in your Certbot
    configuration directory at /etc/letsencrypt. You should make a
    secure backup of this folder now. This configuration directory will
    also contain certificates and private keys obtained by Certbot so
    making regular backups of this folder is ideal.
  - If you like Certbot, please consider supporting our work by:
 
    Donating to ISRG / Let's Encrypt:   https://letsencrypt.org/donate
    Donating to EFF:                    https://eff.org/donate-le

無事に証明書発行

** apachの設定変更 [#n09574c6]

バージョンの確認

 $ sudo apache2 -v
 Server version: Apache/2.4.25 (Debian)
 Server built:   2019-04-02T19:05:13

/etc/apache2/sites-available/ 配下のSSLの設定を変更する~
Apache 2.4.8 以降なので、下記のディレクティブを変更。~
※SSL化済みのサイトなので...

 SSLCertificateFile    /etc/letsencrypt/live/<ドメイン名>/fullchain.pem
 SSLCertificateKeyFile /etc/letsencrypt/live/<ドメイン名>/privkey.pem

再起動

 $ sudo service apache2 restart

~
#htmlinsert(amazon_pc.html);

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