在centos nginx 环境下 搭建 letsencrypt

• wget https://dl.eff.org/certbot-auto

• chmod a+x certbot-auto

• mv certbot-auto /usr/bin/

• 防火墙开启443端口

• nginx反向代理的每一个server下，加

location ^~ /.well-known/acme-challenge/ {
    default_type "text/plain";
    root     /usr/share/nginx/html;
}

location = /.well-known/acme-challenge/ {
    return 404;
}

• webroot 方式安装证书

certbot-auto certonly --webroot -w /usr/share/nginx/html/ -d your-domain.com www.your-domain.com api.your-domain.com

• 生成 迪菲-赫尔曼密钥 以增强安全

openssl dhparam -out /etc/ssl/certs/dhparam.pem 2048

• nginx反向代理的每一个server下,配置ssl

listen       443 ssl;
        server_name your-domain.com www.your-domain.com;

        ssl_certificate /etc/letsencrypt/live/your-domain.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/your-domain.com/privkey.pem;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers on;
        ssl_dhparam /etc/ssl/certs/dhparam.pem;
        ssl_ciphers 'ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA';
        ssl_session_timeout 1d;
        ssl_session_cache shared:SSL:50m;
        add_header Strict-Transport-Security max-age=15768000;

• 80 端口重定向到https

server {
        listen 80;
        server_name api.your-domain.com  your-domain.com www.your-domain.com;
        return 301 https://$host$request_uri;
    }

（编辑：安卓应用网）

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