Merge pull request #411 from btat/pr389

Apply PR #353 and #389 changes to version 2.6 docs

versioned_docs/version-2.6/how-to-guides/new-user-guides/infrastructure-setup/nginx-load-balancer.md

@@ -62,11 +62,21 @@ After installing NGINX, you need to update the NGINX configuration file, `nginx.
             server <IP_NODE_2>:443 max_fails=3 fail_timeout=5s;
             server <IP_NODE_3>:443 max_fails=3 fail_timeout=5s;
         }
-        server {
-            listen     443;
-            proxy_pass rancher_servers_https;
-        }
+    }
 
+    http {
+        server {
+            listen 443 ssl;
+            proxy_pass rancher_servers_https;
+            ssl_certificate /path/to/tls.crt;
+            ssl_certificate_key /path/to/key.key;
+            location / {
+                proxy_pass https://rancher_servers_https;
+                proxy_set_header Host <rancher UI URL>;
+                proxy_ssl_server_name on;
+                proxy_ssl_name <rancher UI URL>
+            }
+        }
     }
     ```