Let's Encrypt の導入

Let's Encrypt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

$ 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

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



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Last-modified: 2019-07-12 (金) 11:04:27