diff --git a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh-critical.j2 b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh-critical.j2
index 905431e..3ec4153 100644
--- a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh-critical.j2
+++ b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh-critical.j2
@@ -1,3 +1,4 @@
+base-url https://grafana.hamburg.ccc.de/ccchh-alertmanager-critical
 http-address :8000
 log-level info
 log-format text
@@ -27,6 +28,7 @@ labels {
 
 resolved {
     tags "white_check_mark,resolved"
+    priority 2
 }
 
 ntfy {
@@ -35,6 +37,10 @@ ntfy {
     access-token {{ secret__ntfy_token }}
 }
 
+alertmanager {
+    silence-duration 3h
+}
+
 cache {
     type memory
     duration 12h
diff --git a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh.j2 b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh.j2
index 80ef84e..c143338 100644
--- a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh.j2
+++ b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-ccchh.j2
@@ -1,3 +1,4 @@
+base-url https://grafana.hamburg.ccc.de/ccchh-alertmanager
 http-address :8010
 log-level info
 log-format text
@@ -27,6 +28,7 @@ labels {
 
 resolved {
     tags "white_check_mark,resolved"
+    priority 2
 }
 
 ntfy {
@@ -35,6 +37,10 @@ ntfy {
     access-token {{ secret__ntfy_token }}
 }
 
+alertmanager {
+    silence-duration 3h
+}
+
 cache {
     type memory
     duration 12h
diff --git a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux-critical.j2 b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux-critical.j2
index 606c0fb..d6c0aae 100644
--- a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux-critical.j2
+++ b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux-critical.j2
@@ -1,3 +1,4 @@
+base-url https://grafana.hamburg.ccc.de/fux-alertmanager-critical
 http-address :8001
 log-level info
 log-format text
@@ -27,6 +28,7 @@ labels {
 
 resolved {
     tags "white_check_mark,resolved"
+    priority 2
 }
 
 ntfy {
@@ -35,6 +37,10 @@ ntfy {
     access-token {{ secret__ntfy_token }}
 }
 
+alertmanager {
+    silence-duration 3h
+}
+
 cache {
     type memory
     duration 12h
diff --git a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux.j2 b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux.j2
index 1ae976e..2718684 100644
--- a/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux.j2
+++ b/resources/chaosknoten/grafana/docker_compose/ntfy-alertmanager-fux.j2
@@ -1,3 +1,4 @@
+base-url https://grafana.hamburg.ccc.de/fux-alertmanager
 http-address :8011
 log-level info
 log-format text
@@ -27,6 +28,7 @@ labels {
 
 resolved {
     tags "white_check_mark,resolved"
+    priority 2
 }
 
 ntfy {
@@ -35,6 +37,10 @@ ntfy {
     access-token {{ secret__ntfy_token }}
 }
 
+alertmanager {
+    silence-duration 3h
+}
+
 cache {
     type memory
     duration 12h
diff --git a/resources/chaosknoten/grafana/nginx/grafana.hamburg.ccc.de.conf b/resources/chaosknoten/grafana/nginx/grafana.hamburg.ccc.de.conf
index a3218d1..d623198 100644
--- a/resources/chaosknoten/grafana/nginx/grafana.hamburg.ccc.de.conf
+++ b/resources/chaosknoten/grafana/nginx/grafana.hamburg.ccc.de.conf
@@ -2,7 +2,8 @@
 # https://ssl-config.mozilla.org/#server=nginx&version=1.17.7&config=intermediate&openssl=1.1.1k&guideline=5.6
 server {
     # Listen on a custom port for the proxy protocol.
-    listen 8443 ssl http2 proxy_protocol;
+    listen 8443 ssl proxy_protocol;
+    http2 on;
     # Make use of the ngx_http_realip_module to set the $remote_addr and
     # $remote_port to the client address and client port, when using proxy
     # protocol.