SSL/TLS secure configuration for nginx web server.

nginx-ssl-tls-secure.conf

ssl_protocols TLSv1.2 TLSv1.3;

ssl_prefer_server_ciphers off;

ssl_ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384;

ssl_ecdh_curve secp384r1; # Requires nginx >= 1.1.0
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off; # Requires nginx >= 1.5.9
ssl_stapling on; # Requires nginx >= 1.3.7
ssl_stapling_verify on; # Requires nginx => 1.3.7
#resolver $DNS-IP-1 $DNS-IP-2 valid=300s;
resolver_timeout 5s;

add_header Strict-Transport-Security "max-age=63072000" always;
#add_header Strict-Transport-Security "max-age=108000; includeSubdomains; preload";

add_header X-Frame-Options SAMEORIGIN;
add_header X-Content-Type-Options nosniff;