server-configs-nginx/h5bp/ssl/policy_deprecated.conf

# ----------------------------------------------------------------------
# | SSL policy - Deprecated                                            |
# ----------------------------------------------------------------------

# For services that don't need compatibility with legacy clients (mostly WinXP),
# but still need to support a wide range of clients, this configuration is
# recommended.
#
# Protect against the BEAST and POODLE attacks by not using SSLv3 at all.
# If you need to support older browsers (IE6) you may need to add SSLv3 to the
# list of protocols.
#
# Based on intermediate profile recommended by Mozilla.
# https://mozilla.github.io/server-side-tls/ssl-config-generator/
#
# (1) Diffie-Hellman parameter for DHE cipher suites
#     A 4096 bits or more DH parameter is recommended.
#     (!) A DH parameter generation is required to enable this directive.
#         openssl dhparam -out /etc/nginx/dhparam.pem 4096
#     https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_dhparam
#
# https://wiki.mozilla.org/Security/Server_Side_TLS#Recommended_configurations
# https://nginx.org/en/docs/http/ngx_http_ssl_module.html

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-SHA:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA256:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA:AES256-SHA:AES128-SHA256:AES256-SHA256:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:DES-CBC3-SHA;
ssl_ecdh_curve X25519:prime256v1:secp521r1:secp384r1;

# (1)
# ssl_dhparam /etc/nginx/dhparam.pem;