APACHE2 + mod_jk

# workers.properties, using one tomcat.

workers.tomcat_home=/usr/local/tomcat
workers.java_home=/usr/java/j2sdk
ps=/
worker.list=tomcat1
worker.tomcat1.port=8009
worker.tomcat1.host=localhost
worker.tomcat1.type=ajp13
worker.tomcat1.lbfactor=100

# Apache conf

JkWorkersFile /etc/apache2/workers.properties
JkLogFile /var/log/apache2/mod_jk.log
JkLogLevel errors
JkMount /*.jsp tomcat1
JkMount /*.pack tomcat1
JkMount /*.do tomcat1
JkAutoAlias /usr/local/tomcat/conf/Catalina/localhost


you might need JkMounts in the VirtualHost directive too.