概要
一度lets' encryptを使ってみたかったので。
後、Gitから取得の手順が多く、apt-getでとってくる手順が見つかななかったので。
certbot の設定
インストール
$ sudo apt-get install certbot
起動
$ sudo systemctl start certbot
証明書の取得
certbotの実行
$ sudo certbot certonly --standalone -t
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator standalone, Installer None
メールアドレスを入力
Enter email address (used for urgent renewal and security notices) (Enter 'c' to
cancel): <メールアドレス>
ライセンス
「A」を入力します。
-------------------------------------------------------------------------------
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-v01.api.letsencrypt.org/directory
-------------------------------------------------------------------------------
(A)gree/(C)ancel:A
メールアドレスの共有
「N」を入力します。
-------------------------------------------------------------------------------
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 EFF and
our work to encrypt the web, protect its users and defend digital rights.
-------------------------------------------------------------------------------
(Y)es/(N)o: N
ドメインの入力
Please enter in your domain name(s) (comma and/or space separated) (Enter 'c'
to cancel): <ドメイン名>
成功時のメッセージ
以下のようなメッセージが出れば成功。
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for iam.dancing-robot.club
Waiting for verification...
Cleaning up challenges
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/<ドメイン名>/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/iam.dancing-robot.club/privkey.pem
Your cert will expire on 2020-01-03. 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"
- 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
トラブルの場合
「Congratulations!」が出ないで下のようなメッセージが出る場合は、Apacheやnginxのサービスを一度止めて再度取得を試みてください。
Problem binding to port 80: Could not bind to IPv4 or IPv6.
証明書のパス
以下に格納されています。
$ sudo find /etc/letsencrypt/ -type f
/etc/letsencrypt/keys/0000_key-certbot.pem
/etc/letsencrypt/keys/0002_key-certbot.pem
/etc/letsencrypt/keys/0001_key-certbot.pem
/etc/letsencrypt/live/<ドメイン名>/README
/etc/letsencrypt/archive/<ドメイン名>/fullchain1.pem
/etc/letsencrypt/archive/<ドメイン名>/privkey1.pem
/etc/letsencrypt/archive/<ドメイン名>/cert1.pem
/etc/letsencrypt/archive/<ドメイン名>/chain1.pem
/etc/letsencrypt/renewal/<ドメイン名>.conf
/etc/letsencrypt/csr/0000_csr-certbot.pem
/etc/letsencrypt/csr/0002_csr-certbot.pem
/etc/letsencrypt/csr/0001_csr-certbot.pem
/etc/letsencrypt/accounts/acme-v01.api.letsencrypt.org/directory/364597c9523af380e31e93a1783eed80/private_key.json
/etc/letsencrypt/accounts/acme-v01.api.letsencrypt.org/directory/364597c9523af380e31e93a1783eed80/meta.json
/etc/letsencrypt/accounts/acme-v01.api.letsencrypt.org/directory/364597c9523af380e31e93a1783eed80/regr.json
/etc/letsencrypt/cli.ini
更新の自動化(Apacheやnginxを使用しない場合)
rootのcronに以下のように設定する。
例では、毎月1日のAM3時に更新されます。
$ sudo crontab -e
### Let's Encrypt
0 3 1 * * /usr/bin/certbot renew