Aug 19

Installing jasperserver 4.0 with mysql 5.5

Installing jasperserver on tomcat with mysql5.5 it isn’t as straight forward as one might think (or as their manual implies). I was trying to install the latest version of jasperserver using the war method and found the script fails.
Reason: there are two files with the wrong syntax that need to be edited (this might also affect other versions of mysql and jasperserver). The files mentioned are located in this folder:
jasperreports-server-cp-4.0.0-bin/buildomatic/install_resources/sql/mysql/ and they are called:

js-create.ddl
quartz.ddl

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Aug 13

php ajax/jquery countdown

I recently came across the need to have a countdown displayed in one of our applications. I was going to be releasing a new version of our app and wanted the users to have an idea of how long it was going to take until the application was up and running. After a few searches I found a plugin that does just what I needed, it is a jquery plugin, very simple to use and to add to any php application in just a matter of minutes.

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Aug 07

Connect to Cisco Nortel Contivity VPN from Ubuntu

I finally figured out how to get Ubuntu to connect to a Nortel Contivity VPN. It took quite a while to find the right app and configuration, but after a lot of search, I’ve found a package called vpnc (vpn client for cisco3000 VPN Concentrator). The project homepage is found here and it is supposed to work with:

* Cisco VPN concentrator 3000 Series
* Cisco IOS routers
* Cisco PIX / ASA Zecurity Appliances
* Juniper/Netscreen

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Jul 02

How to create a robotic voice using audacity

In this tutorial I’ll guide you through creating your very own robotic voice. You”ll need to have 1 tool installed, audacity audio editor. If you are running ubuntu, just run from the command line sudo apt-get install audacity, otherwise, head on over to their site and download the latest version and follow the install steps. Once audacity has been installed we can get started.

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Jun 09

Setup Guest OS on a virtual disc image (virtual machine) on Linux

(This tutorial assumes you own a legal copy of the OS you’ll be using to install as the “guest” OS, be it Unix, Winblows or any other Operating System not mentioned here)

In this tutorial I’ll walk you through setting up a virtual machine in Linux using QEMU. According to QEMU site, QEMU is a generic and open source machine emulator and virtualizer. When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance.

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