diff --git a/authelia.nix b/authelia.nix
index 19e349a..5fc52df 100644
--- a/authelia.nix
+++ b/authelia.nix
@@ -7,7 +7,7 @@
   nginxEnableACME ? true,
   nginxForceSSL ? true,
   nginxIsDefault ? true,
-  config
+  config ? {}
 }:
 
 let
@@ -32,6 +32,8 @@ runAuthelia = pkgs.writeShellScriptBin "runAuthelia" ''
   ${package}/bin/authelia --config ${configFile}
 '';
 
+port = pkgs.attrByPath ["server" "port"] 9091 config;
+
 in
 {
   package = package;
@@ -56,7 +58,44 @@ in
         enableACME = nginxEnableACME;
         forceSSL = nginxForceSSL;
         default = nginxIsDefault;
-        locations."/".proxyPass = "http://localhost:9091";
+        locations."/" = {
+          proxyPass = "http://localhost:${port}";
+          extraConfig = ''
+            client_body_buffer_size 128k;
+
+            #Timeout if the real server is dead
+            proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;
+
+            # Advanced Proxy Config
+            send_timeout 5m;
+            proxy_read_timeout 360;
+            proxy_send_timeout 360;
+            proxy_connect_timeout 360;
+
+            # Basic Proxy Config
+            proxy_set_header Host $host;
+            proxy_set_header X-Real-IP $remote_addr;
+            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Host $http_host;
+            proxy_set_header X-Forwarded-Uri $request_uri;
+            proxy_set_header X-Forwarded-Ssl on;
+            proxy_redirect  http://  $scheme://;
+            proxy_http_version 1.1;
+            proxy_set_header Connection "";
+            proxy_cache_bypass $cookie_session;
+            proxy_no_cache $cookie_session;
+            proxy_buffers 64 256k;
+
+            # If behind reverse proxy, forwards the correct IP
+            set_real_ip_from 10.0.0.0/8;
+            set_real_ip_from 172.16.0.0/12;
+            set_real_ip_from 192.168.0.0/16;
+            set_real_ip_from fc00::/7;
+            real_ip_header X-Forwarded-For;
+            real_ip_recursive on;
+          '';
+        };
       };
     };
   };