diff --git a/Installation-System.md b/Installation-System.md
index efb1647..7c41a17 100644
--- a/Installation-System.md
+++ b/Installation-System.md
@@ -9,7 +9,8 @@ sudo update-alternatives --config java
 java -version
 ```
 
-# Step 2: Create and setup Tomcat User
+# Step 2 Install Apache Tomcat 9
+## Sp 2: Create and setup Tomcat User
 ```
 sudo groupadd tomcat 
 sudo useradd -s /bin/false -g tomcat -d /opt/tomcat tomcat
@@ -18,7 +19,12 @@ see parameter http://manpages.ubuntu.com/manpages/bionic/de/man8/useradd.8.html
 
 `sudo usermod -a -G tomcat administrator`
 
-# Step 3: Install Apache Tomcat 9
+`sudo update-java-alternatives -l`
+
+Output:
+adoptopenjdk-8-hotspot-amd64   1081       /usr/lib/jvm/adoptopenjdk-8-hotspot-amd64
+
+
 > see also: https://www.cloudbooklet.com/install-apache-tomcat-on-ubuntu-20-04-google-cloud/
 
 `sudo mkdir /opt/tomcat`
@@ -45,37 +51,68 @@ sudo chown -R tomcat webapps/ work/ temp/ logs/
 
 Now, create a new file for Tomcat inside /etc/systemd/system directory:
 `sudo nano /etc/systemd/system/tomcat.service`
-> ```
+```
+[Unit]
+Description=Apache Tomcat Web Application Container
+After=network.target
 
-> > [Unit]
-> > Description=Apache Tomcat Web Application Container
-> > After=network.target
-> > 
-> > [Service]
-> > Type=forking
-> > 
-> > Environment=JAVA_HOME=/usr/lib/jvm/adoptopenjdk-8-hotspot-amd64
-> > Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
-> > Environment=CATALINA_HOME=/opt/tomcat
-> > Environment=CATALINA_BASE=/opt/tomcat
-> > Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
-> > Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'
-> > 
-> > ExecStart=/opt/tomcat/bin/startup.sh
-> > ExecStop=/opt/tomcat/bin/shutdown.sh
-> > 
-> > User=tomcat
-> > Group=tomcat
-> > UMask=0007
-> > RestartSec=10
-> > Restart=always
-> > 
-> > [Install]
-> > WantedBy=multi-user.target
+[Service]
+Type=forking
+
+Environment=JAVA_HOME=/usr/lib/jvm/adoptopenjdk-8-hotspot-amd64
+Environment=CATALINA_PID=/opt/tomcat/temp/tomcat.pid
+Environment=CATALINA_HOME=/opt/tomcat
+Environment=CATALINA_BASE=/opt/tomcat
+Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
+Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'
+
+ExecStart=/opt/tomcat/bin/startup.sh
+ExecStop=/opt/tomcat/bin/shutdown.sh
+
+User=tomcat
+Group=tomcat
+UMask=0007
+RestartSec=10
+Restart=always
+
+[Install]
+WantedBy=multi-user.target
 ```
 
 Reload the systemd daemon:
 `sudo systemctl daemon-reload`
 
 Now you can start Tomcat server:
-`sudo systemctl enable tomcat`
\ No newline at end of file
+`sudo systemctl enable tomcat`
+
+
+## configure TOMCAT
+`sudo nano /opt/tomcat/conf/tomcat-users.xml`
+
+Add the <user tag within the <tomcat-users which should look like the one below:
+<tomcat-users . . .>
+    <user username="admin" password="xxx" roles="manager-gui,admin-gui"/>
+</tomcat-users> 
+
+For the Manager app the file that needs be updated is:
+sudo nano /opt/tomcat/webapps/manager/META-INF/context.xml
+<Context antiResourceLocking="false" privileged="true" >
+  <!--<Valve className="org.apache.catalina.valves.RemoteAddrValve"
+         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />-->
+</Context>
+
+For the Host Manager app the file that needs be updated is:
+`sudo nano /opt/tomcat/webapps/host-manager/META-INF/context.xml`
+
+## test tomcat installation
+
+`sudo systemctl reload tomcat.service`
+
+check tomcat installation
+http://localhost:8080/
+http://localhost:8080/manager/html
+http://localhost:8080/host-manager/html
+
+
+
+