# Install acme.sh tool
git clone https://github.com/Neilpang/acme.sh.git

cd acme.sh

./acme.sh --install

#install cert
cd ~/.acme.sh

# issue a RSA cert
sudo ./acme.sh --issue --d blog.zhenglei.net -w /var/www/html/wordpress

# issue a ECC cert
./acme.sh --issue -d blog.zhenglei.net -w /var/www/html/wordpress --keylength ec-256

# Copy the cert into target directory
sudo mkdir -p /etc/nginx/ssl

sudo ./acme.sh --installcert -d blog.zhenglei.net --key-file /etc/nginx/ssl/blog.zhenglei.net.ecc.key --fullchain-file /etc/nginx/ssl/blog.zhenglei.net.ecc.bundle --ecc
sudo ./acme.sh --installcert -d blog.zhenglei.net --key-file /etc/nginx/ssl/blog.zhenglei.net.key --fullchain-file /etc/nginx/ssl/blog.zhenglei.net.bundle

# Update nginx config
server {
 #listen 80;

 listen 443;
 ssl on;
 ssl_certificate ssl/blog.zhenglei.net.bundle;
 ssl_certificate_key ssl/blog.zhenglei.net.key;

 ssl_session_timeout 5m;

 ssl_protocols SSLv3 TLSv1;
 ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv3:+EXP;

 ssl_prefer_server_ciphers on;
 ...
}

server {
        listen 80 default_server;
        server_name blog.zhenglei.net;

        # Let's Encrypt, http method
        location ~ \.well-known
        {
           root /var/www/html/wordpress/;
           allow all;
           access_log on;
           log_not_found on;
        }
 return 301 https://$server_name$request_uri;
}