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= Let's Encrypt =

== 証明書の更新 ==

このやり方はあちこちに記述があるが、極めて簡単。
/etc/crontabに、
{{{
 00 05 05 * * root /opt/certbot/certbot-auto renew
}}}
とでも書けばよい(/opt/certbotにインストールした場合)。この例では一月に一度だけrenewするが、やりすぎてはいけないようだ。例えば毎日行うなど。

== 証明書の期限確認 ==

{{{
# /opt/certbot/certbot-auto certificates
....

-------------------------------------------------------------------------------
Found the following certs:
  Certificate Name: www.sample.com
    Domains: www.sample.com
    Expiry Date: 2017-08-29 08:16:00+00:00 (VALID: 40 days)
    Certificate Path: /etc/letsencrypt/live/www.sample.com/fullchain.pem
    Private Key Path: /etc/letsencrypt/live/www.sample.com/privkey.pem

......
-------------------------------------------------------------------------------

}}}


== 参考 ==

 * https://letsencrypt.jp/usage/
 * http://qiita.com/yasuken/items/e45eb9efd16199512d4e
 * https://www.digitalocean.com/community/tutorials/how-to-set-up-let-s-encrypt-certificates-for-multiple-apache-virtual-hosts-on-ubuntu-14-04
 * http://serverfault.com/questions/768629/letsencrypt-on-centos-6-with-multiple-virtualhosts
 * https://community.letsencrypt.org/t/cant-figure-out-how-to-set-up-multiple-vhosts-to-work-with-certbot-in-centos-6-8/26263
 * https://www.digicert.com/ssl-support/apache-multiple-ssl-certificates-using-sni.htm
この内容は以下に移動しました。
https://www.gwtcenter.com/easiest-letsencrypt

この内容は以下に移動しました。 https://www.gwtcenter.com/easiest-letsencrypt