Install Apache Tomcat On Ubuntu 20.04

Install Apache Tomcat On Ubuntu 20.04

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# Installing Java/Install OpenJDK
sudo apt update
sudo apt installjdk
java -version

#Creating a System User
sudo useradd -r -m -U -d /opt/tomcat...

#Download and Install Tomcat
 wget https://archive.apache.org/dist/tomcat/tomcat....
sudo tar xf /tmp/apache-tomcat-10.0.8.tar.gz /opt/tomcat

sudo chown -R tomcat: /opt/tomcat

#Creating SystemD Unit File

sudo nano /etc/systemd/....

[Unit]
Description=Tomcat 9 servlet container
After=network.target

[Service]
Type=forking


Environment="JAVA_HOME=/usr/lib/jvm.....

Environment="CATALINA_BASE=/opt/tomcat/latest"

ExecStart=/opt/tomcat/latest/bin/startup.sh


#Now save and exit

sudo systemctl daemon-reload
sudo systemctl status tomcat

#Configure Tomcat Web Management Interface
sudo nano /opt/tomcat/latest...

#To add a new user with access to the Tomcat web interface (manager-gui and admin-gui) we need to define the user in the tomcat-users.xml file, as shown below. Make sure you change the username and password to something more secure:

  <tomcat-users>
<!--
    Comments
-->
   <role rolename="admin-gui"/>
   <user username="admin" password="admin123" roles="admin-gui,manager-gui"/>
</tomcat-users>

#For the Manager app, open the following file:
sudo nano /opt/tomcat/latest/context.xml...

  <Context antiResourceLocking="false" privileged="true" >
<!--

       allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
-->
</Context>



#For the Host Manager app, open the following file:
sudo nano /opt/tomcat/latest/webapps/host-manager...


<Context antiResourceLocking="false" privileged="true"
         allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1|our own public ip" />
</Context>

sudo systemctl restart tomcat

#Test the Tomcat Installation
http://<your_domain_or_IP_address>:8080

#Tomcat web application manager dashboard is available:
http://<your_domain_or_IP_address>:8080/manager/html

#Tomcat virtual host manager dashboard is available:
http://<your_domain_or_IP_address>:8080/host-manager/html