Affix Bluetooth Protocol Stack For Linux
- A GPL'd Bluetooth Protocol Stack for Linux; supports core Bluetooth protocols like HCI, L2CAP 1.1, L2CAP 1.2, RFCOMM, SDP and various Bluetooth profiles.
Portable SDK for UPnP Devices
- A Portable Open Source UPnP Development Kit which provides developers with an API and open source code for building control points, devices, and bridges that are compliant with Version 1.0 of the Universal Plug and Play Device Architecture Specification. A fork of the Linux SDK for UPnP Devices (libupnp) project. Latest stable release is 1.6.6, 2008-04-26.
The TCP/IP Guide - Online Book
- One of the best sources for information on the TCP/IP protocol available today; written in a clear, concise manner, and is suitable both for the expert as well as the beginner. (2005)
Zebedee: Secure TCP/IP Tunnel
- A simple program to establish an encrypted, compressed tunnel for TCP/IP or UDP data transfer between two systems. Latest stable release is 2.4.1A, 2005-09-06. N.B.: This project continues to get downloads on SourceForge despite no development to speak of since 2005.