more modern updates to nginx config

Author: cooperka

docs/nginx-self-ssl.conf

@@ -21,6 +21,8 @@ http {
   error_log /var/log/nginx/error.log;
 
   gzip on;
+  # Don't gzip HTML (vulnerable to BREACH).
+  gzip_types text/css application/javascript;
 
   passenger_root /usr/lib/ruby/vendor_ruby/phusion_passenger/locations.ini;
   passenger_show_version_in_header off;
@@ -29,26 +31,27 @@ http {
   passenger_ruby /home/deploy/.rbenv/shims/ruby;
 
   server {
-    listen 443;
+    listen 443 ssl;
 
     # Change this to your domain name.
     server_name yoursite.example.com;
 
-    # Ensure this is the path to the public folder of the nemo code.
+    # Ensure this is the path to the public folder of the app code.
     root /home/deploy/nemo/public;
 
     passenger_enabled on;
     rails_env production;
 
     client_max_body_size 50m;
 
-    # Certificate
-    ssl on;
+    # Ensure certificate paths are correct.
+    # Note: .key is paired with a .csr, and that .csr is used to generate .cer/.crt/.pem
     ssl_certificate ssl/ssl.crt;
     ssl_certificate_key ssl/ssl.key;
     ssl_session_timeout 5m;
-    ssl_protocols 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-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS';
+    ssl_session_tickets off;
+    ssl_protocols TLSv1.2 TLSv1.3;
+    ssl_ciphers "ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES256-CCM:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-CCM";
     ssl_prefer_server_ciphers on;
 
     # Redirect server error pages to the static page /50x.html