netatalk is an implementation of the AppleTalk Protocol Suite for Unix systems. It contains support for EtherTalk Phase I and II, AppleShare over IP, DDP, RTMP, NBP, ZIP, AEP, ATP, PAP, ASP, and AFP. It provides Appletalk file, printing, and routing services on Solaris 2.5, Linux, OpenBSD, NetBSD, FreeBSD, SunOS 4.1, Mac OS X, and Ultrix 4.
nget is a commandline NNTP file grabber. It automatically pieces together multipart postings for easy retrieval, even substituting parts from multiple servers and newsgroups. It handles disconnects gracefully, resuming after the last part successfully downloaded, and caching of header data for quick access. It automatically downloads only as many par/par2 files as needed.
JXTA technology is a set of open protocols that allow any connected device on the network ranging from cell phones and wireless PDAs to PCs and servers to communicate and collaborate in a P2P manner. JXTA peers create a virtual network where any peer can interact with other peers and resources directly even when some of the peers and resources are behind firewalls and NATs or are on different network transports. The project goals are interoperability across different peer-to-peer systems and communities, platform independence, multiple/diverse languages, systems, and networks, and ubiquity: every device with a digital heartbeat.
Nodezilla is a secured, distributed, and fault tolerant routing system (or grid network) that supports distributed services such as file sharing, chat, efficient video multicast streaming, and secured file storage. It provides cache features where any server may create a local replica of any data object. These local replicas provide faster access and robustness to network partitions, and reduce network congestion by localizing access traffic. To ensure data protection, redundancy and cryptographic techniques are used.
UDPCast allows to send data simultaneously to many destinations on a local net. This can for instance be used to install entire classrooms of PCs at once. The advantage over using other methods (nfs, ftp, whatever) is that udpcast uses Ethernet's multicast abilities: it won't take longer to install 15 machines than it would to install 2. The tool comes with a busybox bootdisk for easy loading of the tool. However, udpcast can also be started from the command line of an already installed system, and can be used for other purposes than just system installation.