/etc/nginx/snippets/ssl-params.conf

ssl-params.conf

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_ecdh_curve secp384r1;
ssl_session_cache shared:SSL:60m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;

#ssl_session_timeout 5m;

resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 5s;

add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload";
add_header X-Frame-Options SAMEORIGIN;
add_header X-XSS-Protection "1; mode=block";
add_header X-Content-Type-Options nosniff;

ssl_dhparam /etc/ssl/certs/dhparam.pem;