Настройка SSL-сертификата от lets encrypt и nginx

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yum -y install epel-release
yum -y install git nginx bc
git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt/

в конфиг домена, к которому привязываем сертификат, добавляем location ~/.well-known, например:

server {
    listen 80 default_server;
    location ~ /.well-known {
        allow all;
    }
}

применяем

service nginx restart

Получаем сертификат. Домен - должен быть именно доменом, а не IP адресом.

cd /opt/letsencrypt/
./letsencrypt-auto certonly -a webroot --webroot-path=/usr/share/nginx/html -d example.com -d www.example.com

генерим кое-какую мелочь, это долго:

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

записываем SSL-конфиг:

cat > /etc/nginx/conf.d/ssl.conf << EOF

server {
        listen 443 ssl;
        server_name example.com;

        ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
        ssl_certificate_key /etc/letsencrypt/live/example.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;

        location ~ /.well-known {
                allow all;
        }

        # The rest of your server block
        root /usr/share/nginx/html;
        index index.html index.htm;

        location / {
                # First attempt to serve request as file, then
                # as directory, then fall back to displaying a 404.
                try_files $uri $uri/ =404;
                # Uncomment to enable naxsi on this location
                # include /etc/nginx/naxsi.rules
        }
}
EOF

Заменяем example.com на наш домен

sed -e 's/example.com/yourdomain.com/g' -i /etc/nginx/conf.d/ssl.conf

Снова рестартим nginx:

/etc/init.d/nginx restart

заходим на https://наш.домен/, проверяем работу.

правим конфиг nginx под свои нужды.

Последующее обновление всех сертификатов:

/opt/letsencrypt/letsencrypt-auto renew && service nginx reload
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