## Version 2020/01/07 - Changelog: https://github.com/linuxserver/docker-letsencrypt/commits/master/root/defaults/ssl.conf

# session settings
ssl_session_timeout 1d;
ssl_session_cache shared:SSL:50m;
ssl_session_tickets off;

# Diffie-Hellman parameter for DHE cipher suites
ssl_dhparam /config/nginx/dhparams.pem;

# ssl certs
ssl_certificate /config/keys/letsencrypt/fullchain.pem;
ssl_certificate_key /config/keys/letsencrypt/privkey.pem;

# protocols
# using generated 2020-01-07, https://ssl-config.mozilla.org/#server=nginx&server-version=1.16.1-r4&config=intermediate&openssl-version=1.1.1d-r3
ssl_protocols TLSv1.2 TLSv1.3;
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_prefer_server_ciphers off;

# HSTS, remove # from the line below to enable HSTS
#add_header Strict-Transport-Security "max-age=63072000; includeSubDomains; preload" always;

# OCSP Stapling
ssl_stapling on;
ssl_stapling_verify on;
resolver 127.0.0.11 valid=30s; # Docker DNS Server

# Enable TLS 1.3 early data
ssl_early_data on;

# Optional additional headers
#add_header Content-Security-Policy "upgrade-insecure-requests";
#add_header X-Frame-Options "SAMEORIGIN" always;
#add_header X-XSS-Protection "1; mode=block" always;
#add_header X-Content-Type-Options "nosniff" always;
#add_header X-UA-Compatible "IE=Edge" always;
#add_header Cache-Control "no-transform" always;
#add_header Referrer-Policy "same-origin" always;