Zope is an open source application server for building content management systems, intranets, portals, and custom applications. The Zope community consists of hundreds of companies and thousands of developers all over the world, working on building the platform and Zope applications. Zope is written in Python, a highly-productive, object-oriented scripting language.

Plone is a ready-to-run content management system that is built on the powerful and free Zope application server. Plone is easy to set up, extremely flexible, and provides you with a system for managing web content that is ideal for project groups, communities, web sites, extranets and intranets.

XAMPP is an easy to install Apache Distribution for Linux, Windows, Mac OS X, and Solaris. The package includes the Apache web server, MySQL, SQLite, PHP, Perl, a FTP-Server and phpMyAdmin.

Dual DHCP DNS Server :: Combined DHCP/DNS Server. DHCP Server allots addresses and DNS Server first try resolving from DHCP allotted names then from Cache then forwarding to External DNS. Relay Agent, PXEBOOT and BOOTP, Zone Replication, Auto Config and auto Dynamic DNS update.

FileZilla is a fast and reliable FTP client and server with lots of useful features and an intuitive interface.

AnomicFTPD :: A freeware FTP Server in Java: is an enterprise-suited, RFC959 compliant terminal-based ftpd server in Java.
It is a 'full' server that implements it's own user and group management for operation systems that do not support such and is also the ideal solution to exchange files between systems with different OS.

Simple Ident (authentication) server. It is very small (18Kb executable) and stays as an icon in the system tray. (Full C source code included).

jabberd14 is the original server implementation of the Jabber protocol, now known as XMPP. It is open source, and it is free. This implementation has been formerly known as just jabberd as well.

Please note: jabberd2 (also known as jabberd 2.x) is not a newer version of jabberd14 but a completely different project.

jabberd2 is the next generation of the Jabber/XMPP server.

ejabberd is a free and open source instant messaging server written in Erlang. ejabberd is cross-platform, distributed, fault-tolerant, and based on open standards to achieve real-time communication (Jabber/XMPP).