common-add-headers.conf
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;
add_header X-XSS-Protection "1; mode=block";
ssl-params.conf
ssl_protocols TLSv1.2;
ssl_prefer_server_ciphers on;
ssl_ciphers "*****";
ssl_ecdh_curve *****;
ssl_session_timeout 10m;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;
ssl_dhparam *****;
ssl_certificate *****;
ssl_certificate_key *****;
resolver ***** valid=30;
resolver_timeout 5s;