LYCOS RETRIEVER
Gnutella: Gnutella Client
built 185 days ago
Gnutella is a fully-distributed information-sharing technology. Each piece of Gnutella software is both a server and a client in one, because it supports bidirectional information transfer. Installing any of several available clients is all that is needed to become a fully functional Gnutella site. Then find a few other sites that are willing to communicate: some may be friends, while others may be advertised Gnutella sites. The client communicates directly only with the handful of sites that it's agreed to contact. Any material of interest to other sites is passed along from one site to another in store-and-forward fashion.
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Gtk-Gnutella is a server/client for Gnutella. It runs on every Unix-like system which supports GTK+ (1.2 or above) and libxol. Gnome is not required. It is currently developed and tested under Linux (Debian 2.2) and is known to run at least on Linux, FreeBSD, NetBSD, OpenBSD, Darwin, Solaris, Tru64 UNIX (OSF/1), SGI IRIX, BeOS whereas CPU architectures include x86, AMD64, PowerPC, SPARC, MIPS.
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Each client in a Gnutella network is ... a server, and the term "servent" is the combination of server and client. When starting for the first time, each Gnutella servent requires the IP address of at least one other servent, which it can obtain from a default list of UDP host caches (UHCs) or GWebcaches. UHCs crawl the Internet looking for Gnutella hosts (servents), and GWebcache servers are updated by the Gnutella hosts themselves.
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Modify the Gnutella Client: Now you're wheezing. Rather than take a sensible approach, a capable, or at least earnest, INTERCAL programmer could (after having single-handedly composed an INTERCAL MySQL API, for some reason not currently available) modify the Gnutella's client search function and upload functions so that they will scan the MySQL database and dynamically create and deliver articles. The problem with this is that if a change to article parsing is made, it will have to be duplicated in both the PHP and INTERCAL renderers. A better solution still is have the article provided by the proper PHP class. While PHP - as opposed, say, to INTERCAL - was never meant to be used this way, this might just work.
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Gnutella is often called "an open-source application," but that's not correct. Although many Gnutella developers embrace the open-source ethos and release their programs under open licenses, Gnutella itself is only a protocol -- a predefined language for communication. It's this protocol that's open. Any developer can freely create a client to speak the Gnutella language, and any client that speaks the language can talk to all others that do. The common protocol allows for a bigger community of file sharers, and it leads to fewer points of centralization. But because developers are free to implement their own variations on network standards, this open system can ... be seen as the cause of some of Gnutella's performance problems.
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Gnutella is a peer-to-peer system, an Internet file sharing system serving a community of connected users, with client software that ... acts as a server (software typically referred to as a servant). In this article the author examines the origin of Gnutella, its network structure and protocol, and using Gnutella vs. using the Internet in a traditional manner.
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