Install and configure tomcat

1. install java

sudo yum install java-1.7.0-openjdk

2. install tomcat

sudo yum install tomcat

sudo yum install tomcat-webapps tomcat-admin-webapps

3. configure the tomcat

  • open tomcat.conf file

    sudo vi /etc/tomcat/tomcat.conf

  • add the below JAVA_OPTS line

    JAVA_OPTS="-Djava.security.egd=file:/dev/./urandom -Djava.awt.headless=true -Xmx512m -XX:MaxPermSize=256m -XX:+UseConcMarkSweepGC"

  • Put the appropriate value of JAVA_HOME

    JAVA_HOME="/usr/lib/jvm/jre-1.7.0-openjdk.x86_64/"

4. Change the tomcat's default port from 8080 to 9090 (skip these step if you are not running anything on port 8080)

Note:- default port on which tomcat run is 8080 but we are alresay running apache on that port.

  • Open file server.xml

    sudo vi /etc/tomcat/server.xml

  • find the below line

    <Connector port="8080" protocol="HTTP/1.1"

  • Change the port from 8080 to 9090

    <Connector port="9090" protocol="HTTP/1.1"

  • restart the tomcat service

    sudo service tomcat restart

    5. open the tomcat management console

    http://serveripaddress:9090

6. Configure Tomcate Web Mangment Interface

  • open tomcat-users.xml file

    sudo vi /opt/tomcat/conf/tomcat-users.xml

  • add the below line between <tomcat-users>...</tomcat-users> (change the username and password accordingly)

    <user username="initcron" password="password" roles="manager-gui,admin-gui"/>

  • Restart the tomcat service

    sudo service tomcat restart

    Note:- now if you click on server setup or other option it you will have to pass the above credential

    7. setup sample application

  • Download sample application

    wget https://tomcat.apache.org/tomcat-6.0-doc/appdev/sample/sample.war

  • move the sample application to CATALINA_HOME/webapps directory (/usr/share/tomcat/webapps)

    Note:- you can see CATALINA_HOME variable value in /etc/tomcat/tomcat.conf file

    mv sample.war /usr/share/tomcat/webapps

  • visit sample apllication by http://ip-address:9090/sample