Apache Tomcat 7 Installation Steps for Linux

Tomcat is used for developing web applications, we will install Tomcat 7 and the JDK 8 in CentOS
we'll need to install the JDK  and  Tomcat can support minimum JDK version 1.6

Install JDK 8 :

We can download JDK with latest version from the below url :

http://www.oracle.com/technetwork/java/javase/downloads

Extract that archive file

After extracted the file name should be jdk-8u5 copy or move this file to Java directory

Create a new directory /usr/java.
 
Set JAVA_Home path:

Set the JAVA_HOME path. This is where we installed our JDK above.

To set it for your current session, you can issue the following from the CLI

JAVA_HOME=/usr/java/jdk-8u5

export JAVA_HOME

PATH=$JAVA_HOME/bin:$PATH

export PATH

Once you have added the above to ~/.bash_profile or ~/.bashrc, check that the JAVA_HOME is set correctly.

echo $JAVA_HOME  

/usr/java/jdk-8u5

Download and extract tomcat 7

We have decided tomcat path switch to /usr/local

cd /usr/local

wget http://www.poolsaboveground.com/apache/tomcat/tomcat-7/v7.0.54/bin/apache-tomcat-7.0.54.tar.gz

Once extracted the file name should be apache-tomcat-7.0.54
 
Configure Tomcat for start/stop  :
 
The below scripts for make easy way to start, stop and restart tomcat in single command,
 

#!/bin/bash

# this script for Tomcat Start Stop Restart

JAVA_HOME=/usr/java/jdk-8u5

export JAVA_HOME

PATH=$JAVA_HOME/bin:$PATH

export PATH

CATALINA_HOME=/usr/local/apache-tomcat-7.0.54

case $1 in

start)

sh $CATALINA_HOME/bin/startup.sh

;;

stop)   

sh $CATALINA_HOME/bin/shutdown.sh

;;

restart)

sh $CATALINA_HOME/bin/shutdown.sh

sh $CATALINA_HOME/bin/startup.sh

;;

esac    

exit 0

Now, $CATALINA_HOME directory set to /usr/local/apache-tomcat-7.0.54

Give executable  permission to that file, using the chmod command
  or
Use the chkconfig utility to start Tomcat service during the system boot time,
 
Once you have update verify it,

chkconfig --list tomcat 

tomcat7          0:off   1:off   2:on    3:on    4:on    5:off   6:off 

To start tomcat server:

/etc/init.d/tomcat7 start  

Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.54

Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.54  Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.54/temp  

Using JRE_HOME:        /usr/java/jdk-8u5

Using CLASSPATH:       /usr/local/apache-tomcat-7.0.54/bin/bootstrap.jar:/ /usr/local/apache-tomcat-7.0.54/bin/tomcat-juli.jar 

To stop tomcat server:

/etc/init.d/tomcat7 start  

Using CATALINA_BASE:   /usr/local/apache-tomcat-7.0.54

Using CATALINA_HOME:   /usr/local/apache-tomcat-7.0.54  Using CATALINA_TMPDIR: /usr/local/apache-tomcat-7.0.54/temp  

Using JRE_HOME:        /usr/java/jdk-8u5

Using CLASSPATH:       /usr/local/apache-tomcat-7.0.54/bin/bootstrap.jar:/ /usr/local/apache-tomcat-7.0.54/bin/tomcat-juli.jar

We should check tomcat log file the name of catalina.out its located under /usr/local/apache-tomcat-7.0.54/logs/ catalina.out

Now, We can access tomcat Manage on your browser:

http://192.168.0.1:8080/ or your domain name http://domainame:8080/

Create Tomcat User:
 
we should add in tomcat-user.xml

<tomcat-users>

  <role rolename="tomcat"/>

    <role rolename="admin"/>

<user username="admin" password="j7#$#@#54t4$" roles="admin,manager,manager-gui"/>

</tomcat-users>