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1 Big Fast Server: 1Gbit/s, $10k/month ... Build self-managing systems / Deal with huge scale ... Soon many other clients: Bearshare, Morpheus, LimeWire, etc. ...
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... Peer Systems. Bilal Gonen. What is P2P? napster. gnutella. maorpheus. kazaa. bearshare. seti@home. folding@home. ebay. limewire. icq. fiorana. mojo nation. jxta ...
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Users first connect to the Napster's centralized server to one of the regional ... Napster uses some heuristic evaluation mechanisms about the reliability of a ...
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Protocol suggested by myself and Cullen Jennings of Cisco. Available as IETF Internet-Draft ... Alice (User ID 234) Bob (User ID 011) Node A stores a registration for ...
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In peer-to-peer systems, all nodes have the same authority and ... Some of the first P2P were amateur' systems for information ... with a torus of some ...
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Peer-to-Peer Networks. Distributed Algorithms for P2P. Distributed ... Censor-resistant stores [Eternity, FreeNet, ...] Application-layer multicast [Narada, ...
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Napster's wake (1/2) 2nd Generation : Full decentralization ... Napster's wake (2/2) 3rd Generation : Efficient Routing Substrates ...
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Oui, il est permis de copier un DVD ou une vid ocassette sur un support vierge ... illicite de diffuser soi-m me activement un film par l'interm diaire de telles ...
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marks. B0. term g: 13, 11, 45, ... term a: 17, 11, 92, ... term f: 43, 65, 92, ... Exploit community behavior (bookmarks, links, tags, clicks, etc. ...
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Communications between two or more computers. ... Limewire. Bittorrent. These includes: Bittorrent. BitLord. BitComet. ABC. Azureus. TorrentStorm ...
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Napster, Gnutella, FreeNet. Academic Prototypes. Pastry, Chord, ... Reclaim - free storage associated with a file. Files are immutable. Spring 2000 Spring 2002 ...
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Advantages of Server-Based over Peer-to-Peer Networks ... In-depth knowledge of Microsoft networking products ... Microsoft Certified Systems Administrator (MCSA) ...
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Peer-to ... legal distribution of music on the Internet. Instant Messaging. AOL Instant Messenger ... Certain types of files detected by the firewall for ...
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Peers form self organizing overlay networks over IP network. Allows access to its resources ... How do we balance consistence and network overhead? Strengths ...
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Computer Engineering, Hong Kong University of Science & Technology. P2PMoD. Peer-to-Peer ... Asynchronized Play Time. Movie-on-Demand is not TV Program Broadcast ...
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Contributions from Peter Druschel & Sean Rhea. Fall 2006. CS 561. 2. What is Peer-to-Peer About? ... Lookup/insert object in log16 N routing steps (expected) ...
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Lookup/insert object in log16 N routing steps (expected) O(log ... numerically closest nodeId maintains object. nodeIds. O. 2128 - 1 ... Object Insertion ...
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Global scale, general purpose, heterogeneous-technologies, public, computer network ... Yahoo mail uses Akamai. 18. Peer-to-Peer Streaming Models ...
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Napster: file sharing app turned into largest mp3 sharing tool ... Totally distributed: DOS attacks do not threaten the whole p2p network. ...
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Station A sends Frame 2 and waits for ACK or timeout (a) Frame 1 lost. A. B. frame. 0 ... Sender must wait for one round trip on the link before a second ...
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Modified the LimeWire Gnutella Client. Run as leaf or ultrapeer. Monitor Gnutella traffic ... Log of Gnutella queries from LimeWire clients. Reissued Gnutella queries ...
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Cheap P2P distribution enables emergence of new content creators. Broadcasters and e-tailers ... In-Flight Entertainmnent [Air France, Thales] On-the-road ...
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Windows Messenger. Yahoo! Messenger. Jabber -An open-source ... Windows Messenger and Yahoo! Messenger are members of IMunified. Distributed Search Engines ...
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Redes descentralizadas y distribuidas en las cuales las ... Frameworks de desarrollo. JXTA (Sun), .NET (Microsoft) 26-Jun-2003. Soluciones Peer to Peer ...
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Neighborhood set M nodeId's, IP addresses of M closest nodes, useful to ... may specify the number of stripes they are willing to act as ...
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eSTAR and TALONS. TALONS system very different architecturally than eSTAR ... Events from the TALONS gateway will be feed back into the GRB programme on UKIRT ...
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Privacy, integrity and authentication: security, data encryption and digital signature ... Sends enough frames to keep channel busy and then waits for ACK ...
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Scientific papers manager and alerter! Your unified window on ... Papers alerter: 'no more need to spend time in trying to stay up to date with a certain topic! ...
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Internet Measurement: Infrastructure, Traffic and Applications ... Gnutella (Bearshare, Limewire) De-centralized algorithm. Distributed searching; ...
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peer-to-peer file systems. Presented by: Serge Kreiker 'P2P' in the Internet ... xyz.mp3. So Far. Centralized : Napster - Table size O(n) - Number of hops O(1) ...
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Naming : How to map a resource name to a location? ... Kazaa, LimeWire. P2P Distributed Computing applications. Folding@Home. Grid computing ...
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Trusting belief is the extent to which a peer believes that another peer is ... PeerTrust alleviates or resolves some security concerns in P2P ...
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KaZaA (FastTrack) Super-nodes. Election: capacity. bandwidth, storage, CPU ... From the KaZaA community. Host cache of some super nodes. Bootstrap IP addresses ...
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Napster. Decentralized storage of actual content ... Centralized Index (Napster) Broadcast information to be resolved (Gnutella) Distributed Hashing ...
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Issues of PDBMS. Discussion. Existing PDBMS projects: Piazza, Hyperion, PeerDB ... Key Issues. Scalability. Scale in a less than linear fashion. Availability ...
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limewire. icq. fiorana. mojo nation. jxta. united devices. open cola. uddi. process tree. can ... File Sharing: document sharing among peers with no or limited ...
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On a typical day KaZaA has over 3 million active users, and over 500 TeraBytes of content ... Lawsuit against KaZaA eventually successful. software comes with ...
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Information Systems Laboratory. Stanford University ... Prior Work. TCP ... Future work. Study P2P scheduling of scalable video. Release of a peer-to ...
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PeertoPeer Communication Across Network Address Translation
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Revolution of computing model for the Internet ... October 2000, first meeting of the Peer-to ... Cooper with other types of networking applications. Policies ...
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The network has a central index that all peers contact. Ex. Napster ... Disadvantages: Central point of failure, scalability, not a 'true' p2p. Query. Response ...
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... data which advertised versions are poisoned, which are polluted, and which are clean. Determine the poison and polluted levels, for both versions and copies. ...
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driven by file-sharing for MP3, etc. very simple, extremely popular ... 4: download x.mp3. Peer-to-Peer Information Systems WS 04/05. 6. Gerhard Weikum ...
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Resisting Sybil Attacks on Peer-to-peer Marketplaces. Jonathan ... Sybil attacks use fluid online identities to unfairly increase/decrease a target's reputation ...
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Aug 22, 2002. Sigcomm 2002. Replication Strategies in Unstructured Peer-to-Peer Networks ... Aug 22, 2002. Sigcomm 2002. What is the search size of a query ? ...
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active clients store all the popular objects, inactive clients waste most ... Under our assumptions, the home-store scheme is superior to the directory scheme. ...
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A pure peer-to-peer network is a collection of nodes or peers that: Are autonomous: participants do not ... Examples: Napster, Kazaa, BitTorrent, ... Search ...
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... Addresses as ... In most cases, nodes with IP addresses that are numerically close are also ... Use of IP addresses as virtual IDs would probably produce ...
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1. Routing Indices For Peer-to-Peer Systems. Arturo Crespo, Hector Garcia-Molina ... A key part of a P2P system is document discovery ...
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Use the forum and not email as much as possible. Do not be afraid. 2004-12-22 ... lookup(key) data. Insert(key, data) Send(IP address, data) Receive (IP address) data ...
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Meta-data of a peer is learned from central server, then direct ... File Sharing-BitTorrent. Hybrid p2p solution. More collaborative communities ...
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Minimizes the bandwidth utilization between the server and group of clients. Architecture ... Minimum network bandwidth utilization? ...
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Denial-of-Service Resilience in ... Two-level hierarchy (KaZaA) Leaf nodes & supernodes ... Directed against unstructured p2p networks like Gnutella or Kazaa ...
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File is cached on reverse search path. Anonymity. Replication, cache. Similar ... 'Chord: A scalable peer-to-peer lookup protocol for internet applications' ...
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Consistency (Topology) Topology is fully connected & consistent enclosing neighbors ... Distributed event/state consistency. Recovery from overlay partition ...
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... Peer in Flash. Danny Patterson. Flash Player 10. AIR 1.5 ... Adobe Stratus. Flash Collaboration Services (Formerly known as Cocomo) Let's look at the code...
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