Free egroupware software for linux

eGWSync allows you to access your eGroupware contacts (which are stored in a MySQL or PostgreSQL database) through LDAP.
Youll be able to use Mozilla Thunderbird, Eudora, Outlook to see your contacts through your LDAP server.
Main features:
- Only replicates contacts that have been added or changed
- Does not need additional schema to be loaded into the LDAP server - only person, organizationalPerson and inetorgperson are required.
Benefits
Use the friendly and efficient eGroupware system to manage your contacts
Access the contacts from other applications like Squirrelmail or Mozilla Thunderbird.

Project ERP provides an ERP suite written in PHP inside of eGroupware.

Project ERP is a collection of modules for eGroupware, covering acounting, manufacturing, inventory, and sales orders.

It uses the infrastructure of eGroupware and allows customization easily with the eTemplates-Module.

ADOdb is a database abstraction library for PHP.
The PHP version currently supports an amazing number of databases, thanks to the wonderful ADOdb community: MySQL, PostgreSQL, Interbase, Firebird, Informix, Oracle, MS SQL, Foxpro, Access, ADO, Sybase, FrontBase, DB2, SAP DB, SQLite, Netezza, LDAP, and generic ODBC, ODBTP. The Sybase, Informix, FrontBase and PostgreSQL, Netezza, LDAP, ODBTP drivers are community contributions.
Many popular web applications such as ACID, PostNuke, Xaraya, phpWiki, Mambo, PHP GACL, TikiWiki, eGroupWare and phpLens App Server are using ADOdb as their database abstraction layer.
Main features:
- Designed for speed. It is probably the fastest open source database abstraction library available for PHP. See benchmarks.
- Provides extensive portability support such as date and type-handling and portable schema creation. See portable sql tips
- Support many enterprise features such as database backed sessions (with session expiry notification), SQL code generation, pivot tables, SELECT LIMIT emulation for all databases, performance monitoring.
- Easy to learn, especially if you have Windows programming experience, as it uses many ADO conventions.
- Extensive QA, every release is unit-tested on Access, MySQL, PostgreSQL, MS SQL, Oracle 9.
- Mature, continiously developed since August 2000. Has a large community of users.
- Very reasonable licensing terms (BSD). This means that you can incorporate (and even compile) it into your software applications royalty-free without asking the authors permission, provided you include license.txt in your release. Also dual-licensed (Lesser GPL).