The Ex-Crawler Project is divided into three subprojects. The main part is the Ex-Crawler daemon server, a highly configurable and flexible Web crawler written in Java. It comes with its own socket server, with which you can manage the server, users, distributed grid/volunteer computing, and much more. Crawled information is stored in a database (Currently MySQL, PostgreSQL, and MSSQL are supported). The second part is a graphical (Java Swing) distributed grid/volunteer computing client, including user computer state detection, based on JADIF Project. The Web search engine is written in PHP. It comes with a Content Management System, user language detection and multi-language support, and templates using Smarty, including an application framework that is partly forked from Joomla 1.5, so that Joomla components can be adapted quickly.
The JumpBox for LAPP Deployment contains PostgreSQL plus PHP, Perl, Ruby, and Python along with phpPgAdmin to help you manage the database. You can easily deploy many popular PHP applications as well as CGI based Perl, Ruby, and Python applications. Running a JumpBox allows you to be up and running in minutes on any OS or computing environment. Other benefits include portability, simplified GUI-based administration, and a built-in automated backup system. Once you've deployed one JumpBox, you'll be able to use any of over 50 great Open Source server applications.
PostgreSQL is a powerful, open source object-relational database system that's been under active development for over 15 years. This JumpBox includes PostgreSQL 8 along with PHPPgAdmin set up and ready to run. The PostgreSQL server is network-accessible and provides a great storage engine for a broad array of applications.