CentOS7.9でLet’s Encrypt証明書をインストールする
環境情報
nginx 1.10.2
CentOS Linux release 7.9.2009 (Core)
PHP 5.6.40
操作方法
1.ファイアウォールの設定確認
1.1 httpsサービスを許可
# firewall-cmd --add-service=https --permanent success 設定反映 # firewall-cmd --reload success 設定確認 # firewall-cmd --list-all
1.2 443ポートを開放します
# firewall-cmd --zone=public --add-port=443/tcp --permanent success # firewall-cmd --reload success # firewall-cmd --list-all
2.certbotパッケージのインストール
# yum -y install certbot インストール確認 # yum list installed | grep certbot
3. Let’s Encryptによるサーバー証明書の作成
nginxのサービスを停止
# systemctl stop nginx.service
証明書をインストールします
# certbot certonly --standalone -d www.sample.com -m test@sample.com --agree-tos -n
Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator standalone, Installer None Starting new HTTPS connection (1): acme-v02.api.letsencrypt.org Requesting a certificate for www.sample.com Performing the following challenges: http-01 challenge for www.sample.com Waiting for verification... Cleaning up challenges IMPORTANT NOTES: - Congratulations! Your certificate and chain have been saved at: /etc/letsencrypt/live/www.sample.com/fullchain.pem Your key file has been saved at: /etc/letsencrypt/live/www.sample.com/privkey.pem Your certificate will expire on 2022-02-16. 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
サーバー証明書ファイルの確認
# ls -l /etc/letsencrypt/live/www.ctoit.net/ total 4 -rw-r--r-- 1 root root 692 Nov 18 10:49 README lrwxrwxrwx 1 root root 37 Nov 18 10:49 cert.pem -> ../../archive/www.sample.com/cert1.pem lrwxrwxrwx 1 root root 38 Nov 18 10:49 chain.pem -> ../../archive/www.sample.com/chain1.pem lrwxrwxrwx 1 root root 42 Nov 18 10:49 fullchain.pem -> ../../archive/www.sample.com/fullchain1.pem lrwxrwxrwx 1 root root 40 Nov 18 10:49 privkey.pem -> ../../archive/www.sample.com/privkey1.pem
4. dhparam用ファイルの作成
# mkdir /etc/nginx/ssl # openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048 # ls -a /etc/nginx/ssl/ . .. dhparam.pem
5.nginxへのSSL通信用の配置ファイルを作成します
# vi /etc/nginx/conf.d/www.sample.com.conf
以下の内容を編集します
server {
listen 80;
server_name sample.com www.sample.com;
rewrite ^ https://$server_name$request_uri? permanent;
}
server {
listen 443 ssl;
server_name sample.com www.sample.com;
access_log /var/log/nginx/www.sample.com-access.log main;
error_log /var/log/nginx/www.sample.com-error.log;
root /home/www/www.sample.com;
ssl_certificate /etc/letsencrypt/live/www.sample.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/www.sample.com/privkey.pem;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets on;
ssl_dhparam /etc/nginx/ssl/dhparam.pem;
ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers HIGH:!aNULL:!MD5;
ssl_prefer_server_ciphers on;
location / {
index index.php index.html index.htm;
}
location ~ \.php$ {
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
6.配置ファイルの確認
# nginx -t nginx: the configuration file /etc/nginx/nginx.conf syntax is ok nginx: configuration file /etc/nginx/nginx.conf test is successful
7.nginx再起動
# systemctl start nginx.service # systemctl start php-fpm.service