--- 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_protocols: "TLSv1.2 TLSv1.3" ssl_prefer_server_ciphers: "off" ssl_session_cache: "shared:ssl_session_cache:10m" HSTS_header: 'Strict-Transport-Security "max-age=63072000; always"'