I'd checked a lot manuals, and performed recomendation settings for nginx ssl setup (How do you score A+ with 100 on all categories on SSL Labs test with Let's Encrypt and Nginx?), but still ssllab's rating is B: https://www.ssllabs.com/ssltest/analyze.html?d=remo24.ru
Nginx: 1.12.1 Openssl: 1.0.1t My nginx conf files:
nginx.conf
http {
include /etc/nginx/mime.types;
## Start add by hoster support
proxy_read_timeout 500;
proxy_connect_timeout 500;
client_max_body_size 100M;
server_names_hash_bucket_size 64;
## End add by hoster support
#My ssl config
ssl_session_tickets off;
...
ssl.conf
ssl_protocols TLSv1.2 TLSv1.1 TLSv1
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; # Score=90 (recommended)
ssl_prefer_server_ciphers on;
sites-enabled/{hostname}.conf
server { listen {server_ip}:443 ssl;
server_name {hostname};
ssl on;
ssl_stapling on;
ssl_stapling_verify on;
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_ecdh_curve secp384r1;
resolver 8.8.8.8 8.8.4.4 valid=300s;
resolver_timeout 10s;
add_header Strict-Transport-Security max-age=31536000;
ssl_certificate /etc/nginx/ssl/{hostname}/chain.crt;
ssl_certificate_key /etc/nginx/ssl/{hostname}/cert.key;
ssl_dhparam /etc/nginx/ssl/{hostname}/dhparam.pem;
What's wrong? What should I check for?