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====== Apache Tomcat ==
===== Installing Tomcat ==

(On Slackware 12.2 at 2010-04-28)

Tomcat is available as package at www.slackpackages.net. Installing the package adds the user and group 'tomcat' with a user- and group ID of 8080. ''/etc/rc.d./rc.tomcat'' and ''/etc/profile.d/catalina.sh'' and ''catalina.csh'', which creates the ''CATALINA_HOME'' env. var.

Tomcat is controlled with ''/etc/rc.d./rc.tomcat start|stop|restart''. Make rc.tomcat runnable and enable autostart at power on by starting/stopping it with an entries in ''rc.local'' / ''rc.local_shutdown''. (See comments in rc.tomcat)

After start you should see the default Tomcat home page at http://localhost:8080/ If not, check ''/usr/share/apache-tomcat/RUNNING.txt''

===== First Steps ==

The ''CATALINA_HOME'' env var points to ''/usr/share/apache-tomcat''

Hypertext docs live in subdirs of ''$CATALINA_HOME/webapps''. The default home page is ''$CATALINA_HOME/webapps/ROOT/index.html''. It has pointers to Servlets Examples, JSP Examples and the Tomcat Documentation. Access the default home page at http://localhost:8080/ .

Static HTML can be served by simply creating a subdir in ''$CATALINA_HOME/webapps'' and providing an ''index.html'' within that new dir. (Tested)

A WAR file (eg. from [[:becki:coding:apache click]]) can be deployed just by dropping it into ''$CATALINA_HOME/webapps'' Note that Tomcat extracts the .war file into the webapps dir and serves content from the extracted directory and not from the war file. [[http://tomcat.apache.org/tomcat-6.0-doc/appdev/deployment.html#Deployment%20With%20Tomcat%206|More]]

===== Tomcat Manager ==

Tomcat ships with a web based configuration app. Among, others it can be used to //reload newly compiled// web apps (eg. java classes) without restarting the server.

In order to access the manager, you have to create a rolename called ''manager'', add some user and assign him the ''magnager'' role in ''
$CATALINA_HOME/conf/tomcat-users.xml''. [[http://tomcat.apache.org/tomcat-6.0-doc/manager-howto.html|More]]

<code xml>
<tomcat-users>
  <!-- Add the following 2 lines: -->
  <role rolename="manager"/>
  <user username="bigboss" password="geheim" roles="manager"/>
</tomcat-users>
</code>

<note important>''
tomcat-users.xml'' by default is world readable. You may want to restrict access to the ''tomcat'' user only</note>

FIXME How to encrypt the password?
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