server{
listen 80;
server_name www.iamle.com;
return 301 https://www.iamle.com$request_uri;
}

server {

listen 443 ssl http2;
ssl    on;
ssl_certificate         /usr/local/nginx/conf/ssl/www.iamle.com.crt;
ssl_certificate_key     /usr/local/nginx/conf/ssl/www.iamle.com.key;
ssl_session_cache           shared:SSL:10m;
ssl_session_timeout         10m;
ssl_session_tickets         off;

ssl_protocols           TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers             'ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
ssl_prefer_server_ciphers       on;

# HSTS (ngx_http_headers_module is required) (15768000 seconds = 6 months)
add_header Stricu-Transport-Security "max-age=63072000; includeSubdomains; preload";

# OCSP Stapling ---
# fetch OCSP records from URL in ssl_certificate and cache them
ssl_stapling on;
ssl_stapling_verify on;

add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
add_header X-Xss-Protection "1; mode=block";

server_name www.iamle.com;
#  ....
}

参考
Mozilla SSL Configuration Generator