Apache


Apache Tomcat - Apache HTTPd - mod_proxy front-end
Apache Tomcat and the World Wide Web Usually when running an application server, such as Apache Tomcat, you bind a connector directly on port 80. This way users visiting your web application will be able to navigate through your server just by calling your domain instead of calling your domain and special port (http://yourdomain.com:8080). If there is no option to bind a Tomcat connector on port 80 (some systems ban this functionality for security purposes), there are other ways to achieve this behavior such as setting a redirect on port 80 to port 8080 (Tomcat’s default, or any other) using IPTables or any other port […]

Running Apache Tomcat and Apache HTTPD on port 80 simultaneously


In many cases, web applications give OutOfMemoryError when their threads require high levels of  memory. Image manipulation or intensive database use or calculation can lead to this very common problem. Normally when you get an OutOfMemory error in a desktop application, you can solve this problem by specifying the java commands -Xms*** (initial Java heap size) and -Xmx*** (maximum Java heap size) when running your program. To solve this issue in tomcat, you must specify these options in the tomcat startup command / script / batch. In windows tomcat is installed as a service. Tomcat provides a configuration tool to […]

java.lang.OutOfMemoryError: PermGen space // More memory for Tomcat under windows