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The communication between the HTTP server and Geronimo can be also done via AJP connectors. By default, both Apache Geronimo distributions (Jetty and Tomcat) have already predefined one AJP v13 listener, the ports where these listeners are defined varies from one distribution to the other.
This section will cover the configuration for both Geronimo distributions as the steps are very similar (if not equal).
The Jakarta Tomcat Connector mod_jk module is provided as a connector from Apache Tomcat source, Jetty (and obviously Tomcat) is fully compatible with this connector. This module is avaiable when you download the Tomcat source, but also is available for download separately, refer to the following URL for the proper version for your system.
In addition to the mod_jk you will require the workers.properties file, also available with the Apache Tomcat source distribution. This properties file tells the mod_jk plugin how to connect to the Geronimo server. For a detailed explanation on all the available options for configuring the Jakarta Tomcat Connector visit the following URL:
Download the appropriate mod_jk for your platform from the Tomcat web site, rename it to mod_jk.dll (or .so depending on your platform) and copy it into the <httpd_home>\modules directory. Download and extract the workers.properties from the Apache Tomcat source (alternatively, download it from the Attachments section) to the <httpd_home>\conf directory.
Edit the httpd.conf file located in the <httpd_home>\conf directory to load the Jakarta Tomcat Connector mod_jk module. Add the following lines at the end of the httpd.conf file.
JkMount will map anything behind /console/ to the worker ajp13. The name ajp13 is defined in the workers.properties file which is described next. You will need to add more JkMount directives depending on the applications you want to be accessed via the remote HTTPd.
The workers.properties, among other things, tells the HTTPd where the Geronimo server is, what version of AJP should use and the port where Geronimo is listening.
Edit the workers.properties file located in the <httpd_home>\conf directory to match your environment. The following example is an excerpt from the workers.properties file with just the variables you should focus on.
From this example note how the name of the worker is defined, look at the variables definition worker.ajp13.* , ajp13 is the worker name you specified earlier in the httpd.conf.
As a last step, stop and restart the Apache HTTPd to ensure these changes are loaded.
For testing this configuration make sure both Geronimo and HTTPd are up and running.