diff --git a/bundles/nginx/files/site_template b/bundles/nginx/files/site_template
index eef9968..936c07b 100644
--- a/bundles/nginx/files/site_template
+++ b/bundles/nginx/files/site_template
@@ -17,12 +17,27 @@ server {
     ssl_stapling_verify on;
 
     add_header Strict-Transport-Security "max-age=31104000; preload";
+    add_header Referrer-Policy same-origin;
     add_header X-Frame-Options "DENY";
+    add_header X-Content-Type-Options nosniff;
 
     location /.well-known/acme-challenge/ {
         alias /var/lib/dehydrated/acme-challenges/;
     }
 
+% if proxy:
+%     for location, proxy_pass in proxy.items():
+    location ${location} {
+        proxy_pass           ${proxy_pass};
+        proxy_set_header     X-Script-Name /;
+        proxy_set_header     X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header     X-Forwarded-Proto HTTPS;
+        proxy_set_header     X-Forwarded-Host ${domain};
+        proxy_buffering      off;
+    }
+%     endfor
+% endif
+
 % if extras:
 <%include file="extras/${node.name}/${domain}" />
 % endif
diff --git a/data/nginx/files/extras/htz.ex42-1048908/chat.franzi.business b/data/nginx/files/extras/htz.ex42-1048908/chat.franzi.business
index bf0987f..a600cd0 100644
--- a/data/nginx/files/extras/htz.ex42-1048908/chat.franzi.business
+++ b/data/nginx/files/extras/htz.ex42-1048908/chat.franzi.business
@@ -2,7 +2,3 @@
         alias /etc/matrix-synapse/wellknown/;
         add_header Access-Control-Allow-Origin *;
     }
-
-    location /.well-known/acme-challenge/ {
-        alias /var/run/acme/acme-challenge/;
-    }
diff --git a/nodes/htz/ex42-1048908.py b/nodes/htz/ex42-1048908.py
index 7734075..c02bb74 100644
--- a/nodes/htz/ex42-1048908.py
+++ b/nodes/htz/ex42-1048908.py
@@ -62,6 +62,15 @@ nodes['htz.ex42-1048908'] = {
                 '@.*:franzi\\\\.business',
             },
         },
+        'nginx': {
+            'vhosts': {
+                'jenkins.kunsmann.eu': {
+                    'proxy': {
+                        '/': 'http://localhost:9000/',
+                    },
+                },
+            },
+        },
         'riot-web': {
             'url': 'chat.franzi.business',
             'config': {