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Get Certificate from Letsencrypt

sudo apt-get -y install git bc
sudo git clone https://github.com/letsencrypt/letsencrypt /opt/letsencrypt
./letsencrypt-auto certonly --standalone --email yourmail@gmail.com -d www.example.com

Strong Diffie-Hellman

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

Link to SSL Certificate / Key

cd /etc/nginx
mkdir ssl
cd ssl
ln -s /etc/letsencrypt/live/www.example.com/privkey.pem nginx.key
ln -s /etc/letsencrypt/live/www.example.com/fullchain.pem taskbaSe.crt

Use the following in your nginx conf

server {
 listen 80;
 server_name taskba.se;
 return 301 https://$host$request_uri;
}

server {
 listen 443 ssl;
 client_max_body_size 20M;
 server_name www.example.com;
 ssl_certificate /etc/nginx/ssl/nginx.crt;
 ssl_certificate_key /etc/nginx/ssl/nginx.key;
 
 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;
 ssl_stapling on;
 ssl_stapling_verify on;
 add_header Strict-Transport-Security max-age=15768000;
}

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