diff --git a/src/zammad/install-service.sh b/src/zammad/install-service.sh
index b6ea274..e7587ac 100644
--- a/src/zammad/install-service.sh
+++ b/src/zammad/install-service.sh
@@ -8,14 +8,41 @@
 source /root/functions.sh
 source /root/zamba.conf
 source /root/constants-service.conf
+LXC_IP=$(hostname -I)
 
 apt-key adv --fetch https://dl.packager.io/srv/zammad/zammad/key
 apt-key adv --fetch https://artifacts.elastic.co/GPG-KEY-elasticsearch
+
+cat << EOF >>/etc/hosts
+0.0.0.0 image.zammad.com
+0.0.0.0 images.zammad.com
+0.0.0.0 geo.zammad.com
+0.0.0.0 www.zammad.com
+0.0.0.0 www.zammad.org
+0.0.0.0 www.zammad.net
+0.0.0.0 www.zammad.de
+0.0.0.0 zammad.com
+0.0.0.0 zammad.org
+0.0.0.0 zammad.net
+0.0.0.0 zammad.de
+#
+127.0.0.1 elasticsearch
+0.0.0.0 geoip.elastic.co
+EOF
+
+mkdir -p /etc/elasticsearch/jvm.options.d
+cat << EOF >>/etc/elasticsearch/jvm.options.d/msmx-size.options
+# INFO: https://www.elastic.co/guide/en/elasticsearch/reference/master/advanced-configuration.html#set-jvm-heap-size
+# max 50% of total RAM - 2G Ram then set Xms and Xmx 1g
+-Xms1g
+-Xmx1g
+EOF
+
 wget -O /etc/apt/sources.list.d/zammad.list https://dl.packager.io/srv/zammad/zammad/stable/installer/debian/11.repo
 echo "deb https://artifacts.elastic.co/packages/7.x/apt stable main" > /etc/apt/sources.list.d/elastic-7.x.list
 apt update
 DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq dist-upgrade
-DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install ssl-cert zammad
+DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install ssl-cert nginx-full postgresql
 
 # configurwe nginx
 rm -f /etc/nginx/sites-enabled/default
@@ -31,7 +58,7 @@ upstream zammad-websocket {
 
 server {
     listen 80;
-    listen [::]:80;
+#EDIT no IPv6 ;-)   listen [::]:80;
     server_name _;
     
     server_tokens off;
@@ -47,7 +74,7 @@ server {
 }
 server {
     listen 443 ssl http2;
-    listen [::]:443 ssl http2;
+#EDIT no IPv6 ;-)    listen [::]:443 ssl http2;
 
     server_name _;
     
@@ -66,12 +93,16 @@ server {
     ssl_stapling_verify on;
 
     resolver 1.1.1.1 1.0.0.1;
-
-    add_header Strict-Transport-Security "max-age=31536000" always;
-
-    location = /robots.txt  {
-    access_log off; log_not_found off;
-    }
+#
+#  https://webdock.io/en/docs/how-guides/security-guides/how-to-configure-security-headers-in-nginx-and-apache
+#
+    add_header Strict-Transport-Security 'max-age=31536000; includeSubDomains; preload';
+	add_header Content-Security-Policy "default-src 'self'; font-src *;img-src * data:; script-src *; style-src *";
+	add_header Referrer-Policy "strict-origin";
+	add_header X-Frame-Options DENY;
+	add_header X-Content-Type-Options nosniff;
+	add_header X-XSS-Protection "1; mode=block";
+	add_header Permissions-Policy "geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()";
 
     location = /favicon.ico {
     access_log off; log_not_found off;
@@ -118,6 +149,28 @@ server {
 }
 EOF
 
+#EDIT ADD
+echo -e "\n\n\n   >>> Warte 5 sek. und installier Zammad ...\n\n\n"
+sleep 5
+DEBIAN_FRONTEND=noninteractive DEBIAN_PRIORITY=critical apt -y -qq install zammad
+
+# SymLink nginx Zammad enable
+ln -s /etc/nginx/sites-available/zammad.conf /etc/nginx/sites-enabled/
+
 openssl dhparam -out /etc/nginx/dhparam.pem 4096
 
-systemctl restart nginx
\ No newline at end of file
+
+systemctl restart nginx
+systemctl enable elasticsearch.service
+systemctl start elasticsearch.service
+
+# Elasticsearch conntact to Zammad
+/usr/share/elasticsearch/bin/elasticsearch-plugin install -b ingest-attachment
+zammad run rails r "Setting.set('es_url', 'http://localhost:9200')"
+zammad run rails r "Setting.set('es_index', Socket.gethostname.downcase + '_zammad')"
+zammad run rails r "User.find_by(email: 'nicole.braun@zammad.org').destroy"
+
+systemctl restart elasticsearch.service
+zammad run rake searchindex:rebuild
+
+echo -e "Your Zammad installation is now complete. Please continue with setup in your Browser:\nURL:\t\thttp://$(echo $LXC_IP | cut -d'/' -f1)\n"