nginx ssl config

ssl.conf

# this is based on information from
# https://cipherli.st
# https://mozilla.github.io/server-side-tls/ssl-config-generator/
# https://raymii.org/s/tutorials/Strong_SSL_Security_On_nginx.html
# https://scotthelme.co.uk/a-plus-rating-qualys-ssl-test/
# test it with https://www.ssllabs.com/ssltest/

#listen 443 ssl http2;
#listen [::]:443 ssl http2;

ssl on;

ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem;

# cd /etc/ssl && openssl dhparam -out dhparam.pem 4096
ssl_dhparam /etc/ssl/dhparam.pem;

ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH";
ssl_prefer_server_ciphers on;

keepalive_timeout 70;
ssl_session_timeout 10m;
ssl_session_cache shared:SSL:10m;
ssl_session_tickets off;
ssl_stapling on;
ssl_stapling_verify on;

add_header Strict-Transport-Security "max-age=15768000";
gzip off;