Step 1: Update Package Lists

                 sudo apt update

Step 2: Install Tomcat

sudo apt install tomcat9

Step 3: Verify Tomcat Installation

sudo systemctl status tomcat9

Step 4: Access Tomcat

sudo ufw allow 8080/tcp

sudo ufw reload

open browser and call http://localhost:8080

4. start, stop, or restart Tomcat

Start Tomcat:    sudo systemctl start tomcat9

Stop Tomcat:     sudo systemctl stop tomcat9

Restart Tomcat:  sudo systemctl restart tomcat9

common locations where you might find the Tomcat 9 service file:

/etc/systemd/system/tomcat9.service

/lib/systemd/system/tomcat9.service

/etc/init.d/tomcat9

1. Create service files in /lib/systemd/system

ptv-xcluster.service
ptv-xdima.service
ptv-xlocate.service 
ptv-xroute.service  
ptv-xserver.service 
ptv-xterritory.service  
ptv-xtour.service 

2. Update  /lib/systemd/system/ptv-xserver.service

[Unit]
Description=PTV xserver2 service
After=network.target


[Service]

# Configuration
#Environment=JAVA_HOME=/usr/jdk/amazon-corretto-17.0.9.8.1-linux-x64
#Environment=CATALINA_PID=/opt/xServerLinux/xserver-2.31.0/pid
#Environment=CATALINA_HOME=/opt/xServerLinux/xserver-2.31.0
#Environment=CATALINA_BASE=/opt/xServerLinux/xserver-2.31.0
#Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'


# Lifecycle

ExecStart=/opt/xServerLinux/xserver-2.31.0/xserver.sh console
#ExecStop=/opt/xServerLinux/xserver-2.31.0/xserver.sh stop
#SuccessExitStatus=143
#Restart=on-abort



# Security
User=root
Group=root



[Install]
WantedBy=multi-user.target


3. Update  /lib/systemd/system/ptv-xcluster.service

[Unit]
Description=PTV xcluster service
After=network.target


[Service]

# Configuration
#Environment=JAVA_HOME=/usr/jdk/amazon-corretto-17.0.9.8.1-linux-x64
#Environment=CATALINA_PID=/opt/xServerLinux/xserver-2.31.0/pid
#Environment=CATALINA_HOME=/opt/xServerLinux/xserver-2.31.0
#Environment=CATALINA_BASE=/opt/xServerLinux/xserver-2.31.0
#Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'


# Lifecycle

ExecStart=/opt/xServerLinux/xcluster-x64-1.38.0.1/xcluster.sh console
#ExecStop=/opt/xServerLinux/xserver-2.31.0/xserver.sh stop
#SuccessExitStatus=143
#Restart=on-abort



# Security
User=root
Group=root



[Install]
WantedBy=multi-user.target

4. Update  other service files with corresponding .sh file path










6..  Run the service files                                                                                                        .                                                               

1. Enable

sudo systemctl enable ptv-xcluster.service

sudo systemctl enable ptv-xdima.service

sudo systemctl enable ptv-xlocate.service

sudo systemctl enable ptv-xroute.service

sudo systemctl enable ptv-xserver.service

sudo systemctl enable ptv-xterritory.service

sudo systemctl enable ptv-xtour.service

2. Run
sudo systemctl start ptv-xcluster.service

sudo systemctl start ptv-xdima.service

sudo systemctl start ptv-xlocate.service

sudo systemctl start ptv-xroute.service

sudo systemctl start ptv-xserver.service

sudo systemctl start ptv-xterritory.service

sudo systemctl start ptv-xtour.service


3. Restart
sudo systemctl restart ptv-xcluster.service

sudo systemctl restart ptv-xdima.service

sudo systemctl restart ptv-xlocate.service

sudo systemctl restart ptv-xroute.service

sudo systemctl restart ptv-xserver.service

sudo systemctl restart ptv-xterritory.service

sudo systemctl restart  ptv-xtour.service


4. stop
sudo systemctl stop ptv-xcluster.service

sudo systemctl stop ptv-xdima.service

sudo systemctl stop ptv-xlocate.service

sudo systemctl stop ptv-xroute.service

sudo systemctl stop ptv-xserver.service

sudo systemctl stop ptv-xterritory.service

sudo systemctl stop  ptv-xtour.service