Apache Tomcat on Ubuntu 9.10 (Karmic)
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Apache Tomcat is an open source software implementation of the Java Servlet and Java Server Pages technologies. You may choose to run application within Tomcat using either the OpenJDK implementation or the Sun Microsystems implementation of the Java development environment.
Before following this guide, ensure that your system is up to date and that you have completed the Setting Up and Securing a Compute Instance. If you are new to Linux server administration, we recommend reviewing our beginner’s guide and the article concerning systems administration basics.
Choose and Install Java Implementation
Make sure your package repositories and installed programs are up to date by issuing the following commands:
apt-get update apt-get upgrade --show-upgraded
You must choose which implementation of the Java language you wish to use. Note that there is some variance in the implementations of the Java language, and you should install a version that is compatible with the application that you are hoping to run and/or write.
If you choose to run OpenJDK, you can skip the rest of this section, as OpenJDK will be installed as a dependency when you install the tomcat6 package; OpenJDK is pulled in by the “default-java” meta package in Ubuntu.
If you would like to run the Sun Microsystems implementation of Java, you must first edit the
/etc/apt/sources.list file to include the
multiverse repositories. This will make it possible to install “sun-java”, because Sun’s licensing terms are considered “non-free” under the guidelines that govern inclusion in Ubuntu’s “main” software repositories.
Ensure that your
sources.list list resembles the following:
- File: /etc/apt/sources.list
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
## main & restricted repositories deb http://us.archive.ubuntu.com/ubuntu/ karmic main restricted deb-src http://us.archive.ubuntu.com/ubuntu/ karmic main restricted deb http://security.ubuntu.com/ubuntu karmic-updates main restricted deb-src http://security.ubuntu.com/ubuntu karmic-updates main restricted deb http://security.ubuntu.com/ubuntu karmic-security main restricted deb-src http://security.ubuntu.com/ubuntu karmic-security main restricted ## universe repositories - uncomment to enable deb http://us.archive.ubuntu.com/ubuntu/ karmic universe deb-src http://us.archive.ubuntu.com/ubuntu/ karmic universe deb http://us.archive.ubuntu.com/ubuntu/ karmic-updates universe deb-src http://us.archive.ubuntu.com/ubuntu/ karmic-updates universe deb http://security.ubuntu.com/ubuntu karmic-security universe deb-src http://security.ubuntu.com/ubuntu karmic-security universe ## multiverse repositories deb http://us.archive.ubuntu.com/ubuntu/ karmic multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ karmic multiverse deb http://us.archive.ubuntu.com/ubuntu/ karmic-updates multiverse deb-src http://us.archive.ubuntu.com/ubuntu/ karmic-updates multiverse deb http://security.ubuntu.com/ubuntu karmic-security multiverse deb-src http://security.ubuntu.com/ubuntu karmic-security multiverse
Update apt to get the necessary package lists:
Now you are ready to install Sun Java with the following command (acknowledging the license terms):
apt-get install sun-java6-jdk
Install Apache Tomcat
To install Tomcat, issue the following command:
apt-get install tomcat6
You may also want to install the
tomcat6-admin tools, which provide web-based applications that document, test, and allow you to administer Tomcat. You can install all three with the following command:
apt-get install tomcat6-docs tomcat6-examples tomcat6-admin
Tomcat should now be totally functional and should start automatically following installation and your next system reboot. If you need to start, stop, or restart Tomcat you can use the following commands:
/etc/init.d/tomcat6 start /etc/init.d/tomcat6 stop /etc/init.d/tomcat6 restart
Test and Use Tomcat
You can test your Tomcat installation by pointing your browser at
http://[yourdomain-or-ip-address]:8080/. By default, files are located in the
/usr/share/tomcat6 directory. To configure the admin area, you’ll need to add the following lines to the end of your
tomcat-users.xml file, substituting your own username and password. Make sure you keep the “manager” role.
- File: /etc/tomcat6/tomcat-users.xml
<role rolename="manager"/> <user username="tomcat" password="s3cret" roles="manager"/>
Issue the following command to restart the Tomcat server to allow this change to take effect:
Congratulations! You know have a working Apache Tomcat installation.
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