Tomcat Installation on CentOS 6: Difference between revisions

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=Introduction=
=Introduction=
The Tomcat server runs on n-9-22.  I used the guide at this link https://www.itzgeek.com/how-tos/linux/centos-how-tos/install-apache-tomcat-7-0-on-rhel-6-centos-6.html to setup Tomcat.
The Tomcat server runs on n-9-22 on port 8080.


==What if n-9-22 is restarted / rebooted?==
==What if n-9-22 is restarted / rebooted?==


==Where to get information if the server is currently running?==
If the server is currently running, you can access the Tomcat GUI with links to the official documentation for the currently installed version and links to the manager app and more at the following link:
    http://10.20.9.22:8080/
Since this link is on the private network, you must be logged in using the SSH tunnel to access it.


==Install and Set Up on TomCat==
==Install and Set Up on TomCat==

Revision as of 20:45, 11 July 2019

Introduction

The Tomcat server runs on n-9-22 on port 8080.

What if n-9-22 is restarted / rebooted?

Where to get information if the server is currently running?

If the server is currently running, you can access the Tomcat GUI with links to the official documentation for the currently installed version and links to the manager app and more at the following link:

   http://10.20.9.22:8080/

Since this link is on the private network, you must be logged in using the SSH tunnel to access it.

Install and Set Up on TomCat

Step 1: Check the CentOS version and Java version

SmallWorld currently runs on n-9-22, which runs CentOS 6.10. You can check the version of CentOS with the following command:

   cat /etc/centos-release

Check your current version of Java with the following command:

   java -version

If you do not have the correct version, install it using yum. Follow the steps on this tutorial https://www.itzgeek.com/how-tos/linux/centos-how-tos/install-apache-tomcat-7-0-on-rhel-6-centos-6.html

Step 2: Create Tomcat Service Account

This must be done as a root user and has already been done for n-9-22.

   groupadd tomcat
   mkdir /opt/tomcat
   useradd -g tomcat -d /opt/tomcat tomcat

Step 3: Create Initialization Script to Control Apache TomCat

Download the latest version of Apache TomCat from the website https://tomcat.apache.org/download-90.cgi

   vi /etc/init.d/tomcat9

Copy the bash script from here https://www.itzgeek.com/how-tos/linux/centos-how-tos/install-apache-tomcat-7-0-on-rhel-6-centos-6.html

How to Restart the TomCat Server

Login to n-9-22 as root and run the screen called tomcat. You don't need to be in a screen to run this command, but I have the screen just to keep the tomcat commands in one place.

To restart, use

   service tomcat9 restart

To start and stop separately, use

  service tomcat9 start
  service tomcat9 stop