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Debian 5 Lenny Sun Java JDK / JRE on VPS install problem solved

Howto install Sun Java 6 JDK on virtual servers running Debian 5 Lenny with low main memory.
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Techspeak: User Interfake

Web pages and Visual User Interface Editors make it easy to create fake application only consisting of the user-interface, therefore named User-Interfake.

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The 3 most popular (Web) Development Methods

Not only in the web decvelopment these methods are king: Copy-and-Paste, Try-and-Error, Quick-and-Dirty.[Read More]

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Techspeak: Knallpointerexception

Knallpointerexception = Knall + Nullpointerexception[Read More]

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Debian Etch to Lenny upgrade from remote on VPS / VServer successful

Last evening I managed to upgrade the Debian Linux distribution from version 4.0 (Etch) to version 5.0 (Lenny) from remote on my virtual server running virtuozzo.[Read More]

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Book Review: Grails 1.1 Web Application Development

This is a review of the book "Grails 1.1 web application development" written by Jon Dickson published by Packt Publishing.[Read More]

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Google App Engine for Java compared to VPS Java Hosting

Googles App Engine for Java is a cheap and powerful alternative for hosting Java (and Groovy, Scala, JRuby, ...) web applications compared to VPS hosting. How do both compare and what are the advantages and disadvantages of each? Which offer is better for you and your requirements?
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Tomcat and Java versions memory benchmark

How much memory does an upgrade of Apache Tomcat and Sun Java save on a small Linux server? And how do Jetty and Sun Glassfish perform in comparison? Do Grails applications use more memory than Java web applications? Some benchmark results are discussed.
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Grails 1.1 and Groovy 1.6 Java JVM memory settings and tuning

How to change the JVM memory settings in Grails 1.1 and Groovy 1.6 on Linux and Windows systems.[Read More]

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Grails / Java Web Hosting - 32 or 64-Bit JVM on 64-Bit VPS?

Virtual private servers are offered with 32-bit and 64-bit operation systems since x86-64 server hardware is deployed more frequently at hosting companies. This gives you the choice to select an 64-bit JVM or an 32-.Bit JVM. Which one should you choose?
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Grails / Java Web Hosting - critical parameters for memory saving hosting environments

What is the most memory saving hosting environment for Grails and Java web applications and which parameters influence the memory consumption? This is the start of a series of benchmark results with different combinations of popular hosting components.[Read More]

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Apache Roller 4.0 theme upgrade from version 3.1

Web themes for Apache Roller from rollerthemes.com are made for version 3.1. My theme needed some tweaking after upgrading to version 4.0.1 which I describe in this entry.
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Apache Roller upgrade to version 4 saves java server memory

An upgrade of Apache Roller from version 3.1 to 4.0 does not need more java server memory afterwards. From my measurements it may even save memory in the order of 20 mb.[Read More]

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Non-root Tomcat on Port 80 on a VPS without Apache

Java web applications don't need an Apache web server. In memory constrained systems like virtual private servers (VPS) you may get rid of the Apache web server to save memory and gain speed. The idea is to use iptables to replace port 80 in requests to port 8080 of the tomcat connector. Special problem on VPS systems are solved.[Read More]

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Debian 4 Sun Java 6 JDK install problem solved

Howto get Sun Java / JDK 6 installed, configured and running on a virtual private server (VPS) with Debian 4 (Etch) Linux.
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