Mark Thomas, a member of the Apache Tomcat PMC, explains the tuning process for Tomcat, JVM and the applications running on them considering different usage patterns, hardware and network configurations.
http://www.infoq.com/presentations/Tuning-Tomcat-Mark-Thomas

In this four minute tutorial I’m presenting how to remotely debug Java web applications in Apache Tomcat and JBoss containers. This tutorial may be useful if you deployed your application on the remote server and want to debug it in this particular environment. IMPORTANT: remember that your Java application HAS to be compiled with enabled debug information, otherwise you will not be able to debug it.

A tutorial which guides you through installing Tomcat 6 under Java 5.

Mark Thomas, a senior software engineer from SpringSource and the leading contributor to Tomcat security, talks about how security vulnerabilities are handled by the Tomcat team and how end users are served while preventing security problems.  Mark discusses how using an open source project has the following disadvantage: as soon as a new version is published, the new version can be reverse engineered and vulnerabilities can be discovered. Therefore, commits are not announced as security vulnerabilities. Once a release is available for download …