Multi Threaded TCP Port Scanner allows you to scan 65535 TCP ports on an IP address. You can specify how many threads to run and the timeout. Furthermore, it will tell you the MAC address of the target and the services that are running. You can scan IP addresses on your network and find out which open ports you have.
The p2pd package can be used to build scalable content distribution networks (CDNs) for interactive video-on-demand (VoD) streaming. It can be used as a server, a cache, and a client, and used to construct both traditional CDNs and P2P-based CDNs that make use of client resources to stream video files. The system is network aware, attempts to make efficient use of the available resources, and adapts to server failures.