3.3.4. Configuring the Environment

Procedure 3.16. Removing SSL

1. At the shell prompt, become the root user.
2. Run the respective uninstall command:
   • on Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 5:

     # yum remove mod_ssl

   • on Red Hat Enterprise Linux 4:

     # rpm -e mod_ssl22

Procedure 3.17. Adding log4j on tomcat5

1. Install the tomcat6-log4j RPM package.
2. From /usr/share/java/tomcat6/, copy:

   • log4j.jar to /usr/share/tomcat5/common/lib and
   • log4j.properties to /usr/share/tomcat5/common/classes.

Procedure 3.18. Removing log4j From Tomcat 6

1. At the shell prompt, become the root user.
2. Run the respective uninstall command:
   • on Red Hat Enterprise Linux 6 and Red Hat Enterprise Linux 5:

     # yum remove tomcat6-log4j

   • on Red Hat Enterprise Linux 4:

     # rpm -e tomcat6-log4j

Procedure 3.19. Removing log4j From Tomcat 5

1. Remove the log4j.jar file from the /usr/share/tomcat5/common/lib directory.
2. Remove the log4j.properties file from the /usr/share/tomcat5/common/classes directory.

Procedure 3.20. Configuring mod_jk

1. Install the template mod_jk configuration file:

   # cp /usr/share/doc/mod_jk-ap20-*/mod_jk.conf.sample /etc/httpd/conf.d/mod_jk.conf

2. Install the template workers.properties file:

   # cp /usr/share/doc/mod_jk-ap20-*/workers.properties.sample /etc/httpd/conf/workers.properties

3. Add worker mappings to workers.properties. For example:

   # Mount the Servlet context to the ajp20 worker
   /jmx-console=loadbalancer
   /jmx-console/*=loadbalancer
   /web-console=loadbalancer
   /web-console/*=loadbalancer

   Note

   The default configuration is adequate for low-traffic web sites. For optimization information for moderate and high-load web sites, refer to http://kbase.redhat.com/faq/docs/DOC-15836.

Procedure 3.21. Configuring mod_cluster

1. In the /etc/httpd/conf/httpd.conf file, add the hash (#) sign at the beginning of the following line to disable mod_proxy_balancer.so:

   LoadModule proxy_balancer_module modules/mod_proxy_balancer.so

   This module is incompatible with the JBoss HTTP Connector.
2. Configure the server to load the JBoss HTTP Connector modules:
   1. Create the file /etc/httpd/conf.d/JBoss_HTTP.conf.
   2. Add the following lines to the JBoss_HTTP.conf file:

      LoadModule slotmem_module modules/mod_slotmem.so
      LoadModule manager_module modules/mod_manager.so
      LoadModule proxy_cluster_module modules/mod_proxy_cluster.so
      LoadModule advertise_module modules/mod_advertise.so