Scott posted another edition of his "Weekly Source Code" where he lists open source projects that he finds interesting. The idea is to examine the source to find ways to improve your own coding, by finding examples of what to do, and what not to do.

One of the projects listed was Fog Creek's Co-Pilot software, which is a remote help desk software that works across firewalls. The client code, based on VNC, is available under the GPL. Reading thru their tech page, they talk about implementing a version of the STUNT protocol. The STUNT protocol, put simply, is a way to do direct Internet connections across NAT, bypassing the need for a proxy or reflector (Co-Pilot's term) piece of server software. The main advantage to the STUNT approach is that it is much faster since you are not going thru an intermediary. STUNT reminds me of one of the methods used by Skype to establish connections. While they didn't use the term STUNT, it was very similar in concept.

This is particularly interesting for me due to my current project, and some of the communication requirements we have for our products. The idea of a direct connection, possibly to a VNC type application listening on the other end would make trouble shooting a whole lot easier....assuming we were not trouble shooting network connectivity.