Nginx 1.14.1 - OpenSSL 1.1.0

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Below is an SSL Configuration for an nginx web server (version 1.14.1) and OpenSSL (version 1.1.0). This configuration was made with the Mozilla SSL Configuration Generator.

server {
    listen 80 default_server;
    listen [::]:80 default_server;

    # redirect all HTTP requests to HTTPS with a 301 Moved Permanently response.
    return 301 https://$host$request_uri;
}

server {
    listen 443 ssl http2;
    listen [::]:443 ssl http2;

    # certs sent to the client in SERVER HELLO are concatenated in ssl_certificate
    ssl_certificate /path/to/signed_cert_plus_intermediates;
    ssl_certificate_key /path/to/private_key;
    ssl_session_timeout 1d;
    ssl_session_cache shared:MozSSL:10m;  # about 40000 sessions

    # curl https://ssl-config.mozilla.org/ffdhe2048.txt > /path/to/dhparam.pem
    ssl_dhparam /path/to/dhparam.pem;

    # intermediate configuration
    ssl_protocols TLSv1.2;
    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 (ngx_http_headers_module is required) (63072000 seconds)
    add_header Strict-Transport-Security "max-age=63072000" always;

    # OCSP stapling
    ssl_stapling on;
    ssl_stapling_verify on;

    # verify chain of trust of OCSP response using Root CA and Intermediate certs
    ssl_trusted_certificate /path/to/root_CA_cert_plus_intermediates;

    # replace with the IP address of your resolver
    resolver 127.0.0.1;
}