A Pragmatic Analysis of Peer to Peer Networks and Protocols for Security and Confidentiality
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Uila Supported Apps
Uila Supported Applications and Protocols updated Oct 2020 Application/Protocol Name Full Description 01net.com 01net website, a French high-tech news site. 050 plus is a Japanese embedded smartphone application dedicated to 050 plus audio-conferencing. 0zz0.com 0zz0 is an online solution to store, send and share files 10050.net China Railcom group web portal. This protocol plug-in classifies the http traffic to the host 10086.cn. It also 10086.cn classifies the ssl traffic to the Common Name 10086.cn. 104.com Web site dedicated to job research. 1111.com.tw Website dedicated to job research in Taiwan. 114la.com Chinese web portal operated by YLMF Computer Technology Co. Chinese cloud storing system of the 115 website. It is operated by YLMF 115.com Computer Technology Co. 118114.cn Chinese booking and reservation portal. 11st.co.kr Korean shopping website 11st. It is operated by SK Planet Co. 1337x.org Bittorrent tracker search engine 139mail 139mail is a chinese webmail powered by China Mobile. 15min.lt Lithuanian news portal Chinese web portal 163. It is operated by NetEase, a company which 163.com pioneered the development of Internet in China. 17173.com Website distributing Chinese games. 17u.com Chinese online travel booking website. 20 minutes is a free, daily newspaper available in France, Spain and 20minutes Switzerland. This plugin classifies websites. 24h.com.vn Vietnamese news portal 24ora.com Aruban news portal 24sata.hr Croatian news portal 24SevenOffice 24SevenOffice is a web-based Enterprise resource planning (ERP) systems. 24ur.com Slovenian news portal 2ch.net Japanese adult videos web site 2Shared 2shared is an online space for sharing and storage. -
Digital Fountain Erasure-Recovery in Bittorrent
UNIVERSITÀ DEGLI STUDI DI BERGAMO Facoltà di Ingegneria Corso di Laurea Specialistica in Ingegneria Informatica Classe n. 35/S – Sistemi Informatici Digital Fountain Erasure Recovery in BitTorrent: integration and security issues Relatore: Chiar.mo Prof. Stefano Paraboschi Correlatore: Chiar.mo Prof. Andrea Lorenzo Vitali Tesi di Laurea Specialistica Michele BOLOGNA Matricola n. 56108 ANNO ACCADEMICO 2007 / 2008 This thesis has been written, typeset and prepared using LATEX 2". Printed on December 5, 2008. Alla mia famiglia “Would you tell me, please, which way I ought to go from here?” “That depends a good deal on where you want to get to,” said the Cat. “I don’t much care where —” said Alice. “Then it doesn’t matter which way you go,” said the Cat. “— so long as I get somewhere,” Alice added as an explanation. “Oh, you’re sure to do that,” said the Cat, “if you only walk enough.” Lewis Carroll Alice in Wonderland Acknowledgments (in Italian) Ci sono molte persone che mi hanno aiutato durante lo svolgimento di questo lavoro. Il primo ringraziamento va ai proff. Stefano Paraboschi e Andrea Vitali per la disponibilità, la competenza, i consigli, la pazienza e l’aiuto tecnico che mi hanno saputo dare. Grazie di avermi dato la maggior parte delle idee che sono poi confluite nella mia tesi. Un sentito ringraziamento anche a Andrea Rota e Ruben Villa per l’aiuto e i chiarimenti che mi hanno gentilmente fornito. Vorrei ringraziare STMicroelectronics, ed in particolare il gruppo Advanced System Technology, per avermi offerto le infrastrutture, gli spa- zi e tutto il necessario per svolgere al meglio il mio periodo di tirocinio. -
Simulacijski Alati I Njihova Ograničenja Pri Analizi I Unapređenju Rada Mreža Istovrsnih Entiteta
SVEUČILIŠTE U ZAGREBU FAKULTET ORGANIZACIJE I INFORMATIKE VARAŽDIN Tedo Vrbanec SIMULACIJSKI ALATI I NJIHOVA OGRANIČENJA PRI ANALIZI I UNAPREĐENJU RADA MREŽA ISTOVRSNIH ENTITETA MAGISTARSKI RAD Varaždin, 2010. PODACI O MAGISTARSKOM RADU I. AUTOR Ime i prezime Tedo Vrbanec Datum i mjesto rođenja 7. travanj 1969., Čakovec Naziv fakulteta i datum diplomiranja Fakultet organizacije i informatike, 10. listopad 2001. Sadašnje zaposlenje Učiteljski fakultet Zagreb – Odsjek u Čakovcu II. MAGISTARSKI RAD Simulacijski alati i njihova ograničenja pri analizi i Naslov unapređenju rada mreža istovrsnih entiteta Broj stranica, slika, tablica, priloga, XIV + 181 + XXXVIII stranica, 53 slike, 18 tablica, 3 bibliografskih podataka priloga, 288 bibliografskih podataka Znanstveno područje, smjer i disciplina iz koje Područje: Informacijske znanosti je postignut akademski stupanj Smjer: Informacijski sustavi Mentor Prof. dr. sc. Željko Hutinski Sumentor Prof. dr. sc. Vesna Dušak Fakultet na kojem je rad obranjen Fakultet organizacije i informatike Varaždin Oznaka i redni broj rada III. OCJENA I OBRANA Datum prihvaćanja teme od Znanstveno- 17. lipanj 2008. nastavnog vijeća Datum predaje rada 9. travanj 2010. Datum sjednice ZNV-a na kojoj je prihvaćena 18. svibanj 2010. pozitivna ocjena rada Prof. dr. sc. Neven Vrček, predsjednik Sastav Povjerenstva koje je rad ocijenilo Prof. dr. sc. Željko Hutinski, mentor Prof. dr. sc. Vesna Dušak, sumentor Datum obrane rada 1. lipanj 2010. Prof. dr. sc. Neven Vrček, predsjednik Sastav Povjerenstva pred kojim je rad obranjen Prof. dr. sc. Željko Hutinski, mentor Prof. dr. sc. Vesna Dušak, sumentor Datum promocije SVEUČILIŠTE U ZAGREBU FAKULTET ORGANIZACIJE I INFORMATIKE VARAŽDIN POSLIJEDIPLOMSKI ZNANSTVENI STUDIJ INFORMACIJSKIH ZNANOSTI SMJER STUDIJA: INFORMACIJSKI SUSTAVI Tedo Vrbanec Broj indeksa: P-802/2001 SIMULACIJSKI ALATI I NJIHOVA OGRANIČENJA PRI ANALIZI I UNAPREĐENJU RADA MREŽA ISTOVRSNIH ENTITETA MAGISTARSKI RAD Mentor: Prof. -
Distributed Lookup: Part 1: Distributed Hash Tables
CS 417 – DISTRIBUTED SYSTEMS Week 9: Distributed Lookup: Part 1: Distributed Hash Tables © 2021 Paul Krzyzanowski. No part of this content, may be reproduced or reposted in Paul Krzyzanowski whole or in part in any manner without the permission of the copyright owner. Distributed Lookup • Store (key, value) data Object Storage • Look up a key to get the value • Cooperating set of nodes store data • Ideally: – No central coordinator • Peer-to-peer system: all systems have the same capabilities – Some nodes can be down CS 417 © 2021 Paul Krzyzanowski 2 Approaches 1. Central coordinator – Napster 2. Flooding – Gnutella 3. Distributed hash tables – CAN, Chord, Amazon Dynamo, Tapestry, … CS 417 © 2021 Paul Krzyzanowski 3 1. Central Coordinator • Example: Napster – Central directory – Identifies content (names) and the servers that host it – lookup(name) → {list of servers} – Download from any of available servers • Pick the best one by pinging and comparing response times • Another example: GFS – Controlled environment compared to Napster – Content for a given key is broken into chunks – Master handles all queries … but not the data CS 417 © 2021 Paul Krzyzanowski 4 1. Central Coordinator - Napster • Pros – Super simple – Search is handled by a single server (master) – The directory server is a single point of control • Provides definitive answers to a query • Cons – Master has to maintain state of all peers – Server gets all the queries – The directory server is a single point of control • No directory, no service! CS 417 © 2021 Paul Krzyzanowski 5 2. Query Flooding • Example: Gnutella distributed file sharing • Each node joins a group – but only knows about some group members – Well-known nodes act as anchors – New nodes with files inform an anchor about their existence – Nodes use other nodes they know about as peers CS 417 © 2021 Paul Krzyzanowski 6 2. -
Connectivity Properties of Mainline Bittorrent DHT Nodes
IEEE P2P'09 - Sept. 9-11, 2009 Connectivity Properties of Mainline BitTorrent DHT Nodes Raul Jimenez Flutra Osmani Bj¨orn Knutsson Royal Institute of Technology (KTH) ICT/TSLAB Stockholm, Sweden {rauljc, flutrao, bkn}@kth.se Abstract raises some concerns about the scalability and resilience of the technology. The birth and evolution of Peer-to-Peer (P2P) protocols Our work is part of the P2P-Next[1] project, which is have, for the most part, been about peer discovery. Napster, supported by many partners including the EBU2 who claims one of the first P2P protocols, was basically FTP/HTTP to have more than 650 million viewers weekly. In the face plus a way of finding hosts willing to send you the file. Since of such load, scalability and resilience become vital compo- then, both the transfer and peer discovery mechanisms have nents of the underlying technology. improved, but only recently have we seen a real push to In BitTorrent, content is distributed in terms of objects, completely decentralized peer discovery to increase scal- consisting of one or more files, and these objects are de- ability and resilience. scribed by a torrent-file. The clients (peers)participatingin Most such efforts are based on Distributed Hash Tables the distribution of one such object form a swarm. (DHTs), with Kademlia being a popular choice of DHT im- Aswarmiscoordinatedbyatracker,whichkeepstrack plementation. While sound in theory, and performing well of every peer in the swarm. In order to join a swarm, a peer in simulators and testbeds, the real-world performance of- must contact the tracker, which registers the new peer and ten falls short of expectations. -
Title: P2P Networks for Content Sharing
Title: P2P Networks for Content Sharing Authors: Choon Hoong Ding, Sarana Nutanong, and Rajkumar Buyya Grid Computing and Distributed Systems Laboratory, Department of Computer Science and Software Engineering, The University of Melbourne, Australia (chd, sarana, raj)@cs.mu.oz.au ABSTRACT Peer-to-peer (P2P) technologies have been widely used for content sharing, popularly called “file-swapping” networks. This chapter gives a broad overview of content sharing P2P technologies. It starts with the fundamental concept of P2P computing followed by the analysis of network topologies used in peer-to-peer systems. Next, three milestone peer-to-peer technologies: Napster, Gnutella, and Fasttrack are explored in details, and they are finally concluded with the comparison table in the last section. 1. INTRODUCTION Peer-to-peer (P2P) content sharing has been an astonishingly successful P2P application on the Internet. P2P has gained tremendous public attention from Napster, the system supporting music sharing on the Web. It is a new emerging, interesting research technology and a promising product base. Intel P2P working group gave the definition of P2P as "The sharing of computer resources and services by direct exchange between systems". This thus gives P2P systems two main key characteristics: • Scalability: there is no algorithmic, or technical limitation of the size of the system, e.g. the complexity of the system should be somewhat constant regardless of number of nodes in the system. • Reliability: The malfunction on any given node will not effect the whole system (or maybe even any other nodes). File sharing network like Gnutella is a good example of scalability and reliability. -
CS 417 29 October 2018 Paul Krzyzanowski 1
CS 417 29 October 2018 Distributed Lookup • Look up (key, value) • Cooperating set of nodes Distributed Systems • Ideally: – No central coordinator 16. Distributed Lookup – Some nodes can be down Paul Krzyzanowski Rutgers University Fall 2018 October 29, 2018 © 2014-2018 Paul Krzyzanowski 1 October 29, 2018 © 2014-2018 Paul Krzyzanowski 2 Approaches 1. Central Coordinator 1. Central coordinator • Example: Napster – Napster – Central directory – Identifies content (names) and the servers that host it 2. Flooding – lookup(name) → {list of servers} – Download from any of available servers – Gnutella • Pick the best one by pinging and comparing response times 3. Distributed hash tables • Another example: GFS – CAN, Chord, Amazon Dynamo, Tapestry, … – Controlled environment compared to Napster – Content for a given key is broken into chunks – Master handles all queries … but not the data October 29, 2018 © 2014-2018 Paul Krzyzanowski 3 October 29, 2018 © 2014-2018 Paul Krzyzanowski 4 1. Central Coordinator - Napster 2. Query Flooding • Pros • Example: Gnutella distributed file sharing – Super simple – Search is handled by a single server (master) – The directory server is a single point of control • Well-known nodes act as anchors • Provides definitive answers to a query – Nodes with files inform an anchor about their existence – Nodes select other nodes as peers • Cons – Master has to maintain state of all peers – Server gets all the queries – The directory server is a single point of control • No directory, no service! October 29, 2018 © -
Download Times, Bandwidth and Energy Consumption in the Network, Internet Bandwidth Cost, and Traffic Load Imbalance in the Network
Content Sharing and Distribution in Wireless Community Networks by Amr Alasaad B.Sc., King Saud University, 2000 M.Sc., The University of Southern California, 2005 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY in The Faculty of Graduate Studies (Electrical and Computer Engineering) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) April 2013 c Amr Alasaad 2013 Abstract We consider the problem of content sharing and distribution in a wireless mesh community network (WMCN). Due to the community oriented nature of such networks, and with the evolution of advanced mobile computing devices; it is projected that the demand for content sharing and distribution in wireless community networks will dramatically increase in the coming years. A popular scheme for content sharing and distribution is through the use of Peer-to-Peer (P2P) technology. This dissertation studies the technical challenges involved while deploying P2P applications over WMCNs. We advance the thesis that support from a number of infrastructure nodes in a wire- less community network to P2P applications running on top of the wireless community network such as P2P content sharing and P2P media streaming, results in significant performance enhancement. Such support from infrastructure nodes benefits from aware- ness of the underlying network topology (i.e., information available at relay nodes about the true physical connections between nodes in the network). Cross-layer information exchange between the P2P system and the WMCN opens the door to developing efficient algorithms and schemes for P2P communications that account for the specific features of WMCNs (e.g., contention for wireless medium between neighbouring nodes and traffic in- terference). -
Kademlia on the Open Internet
Kademlia on the Open Internet How to Achieve Sub-Second Lookups in a Multimillion-Node DHT Overlay RAUL JIMENEZ Licentiate Thesis Stockholm, Sweden 2011 TRITA-ICT/ECS AVH 11:10 KTH School of Information and ISSN 1653-6363 Communication Technology ISRN KTH/ICT/ECS/AVH-11/10-SE SE-164 40 Stockholm ISBN 978-91-7501-153-0 SWEDEN Akademisk avhandling som med tillstånd av Kungl Tekniska högskolan framlägges till offentlig granskning för avläggande av Communication Systems fredag den 9 december 2011 klockan 10.00 i C2, Electrum, Kungl Tekniska högskolan, Forum, Isafjordsgatan 39, Kista. © Raul Jimenez, December 2011 This work is licensed under a Creative Commons Attribution 2.5 Sweden License. http://creativecommons.org/licenses/by/2.5/se/deed.en Tryck: Universitetsservice US AB iii Abstract Distributed hash tables (DHTs) have gained much attention from the research community in the last years. Formal analysis and evaluations on simulators and small-scale deployments have shown good scalability and per- formance. In stark contrast, performance measurements in large-scale DHT overlays on the Internet have yielded disappointing results, with lookup latencies mea- sured in seconds. Others have attempted to improve lookup performance with very limited success, their lowest median lookup latency at over one second and a long tail of high-latency lookups. In this thesis, the goal is to to enable large-scale DHT-based latency- sensitive applications on the Internet. In particular, we improve lookup la- tency in Mainline DHT, the largest DHT overlay on the open Internet, to identify and address practical issues on an existing system. -
Gnutella Protocol
A BRIEF INTRODUCTION AND ANALYSIS OF THE GNUTELLA PROTOCOL By Gayatri Tribhuvan University of Freiburg Masters in Applied Computer Science [email protected] ABSTRACT Peer to peer technology has certainly improved mechanisms of downloading files at a very high rate. Statistics and research show that as more number of peer to peer protocols developed, the number of nodes in the entire network increased. In this paper, we observe the structure and operation of Gnutella , a peer to peer protocol. The paper also focuses on some issues of this protocol and what improvements were further made to improve its scalability. We also have a look at some of the security issues of this protocol. Some statistics in the paper also reflect important changes that the protocol inflicted onto the entire network. PDF Created with deskPDF PDF Writer - Trial :: http://www.docudesk.com 1. INTRODUCTION Gnutella is a p2p protocol. This paper has tried to address some of the issues that have been faced by users of Gnutella, including that of scalability (increasing the scale of operation, i.e. the volume of operation with progressively larger number of users) and security. The Gnutella protocol is an open, decentralized group membership and search protocol, mainly used for file searching and sharing. Group membership is open and search protocol addresses searching and sharing of files. The term Gnutella represents the entire group of computers which have Gnutella speaking applications loaded in them forming a virtual network. Each node can function as both client as well as server. Thus they can issue queries to other nodes as well accept and respond to queries from other nodes, after matching the queries with the contents loaded in their own hard disks. -
Index Images Download 2006 News Crack Serial Warez Full 12 Contact
index images download 2006 news crack serial warez full 12 contact about search spacer privacy 11 logo blog new 10 cgi-bin faq rss home img default 2005 products sitemap archives 1 09 links 01 08 06 2 07 login articles support 05 keygen article 04 03 help events archive 02 register en forum software downloads 3 security 13 category 4 content 14 main 15 press media templates services icons resources info profile 16 2004 18 docs contactus files features html 20 21 5 22 page 6 misc 19 partners 24 terms 2007 23 17 i 27 top 26 9 legal 30 banners xml 29 28 7 tools projects 25 0 user feed themes linux forums jobs business 8 video email books banner reviews view graphics research feedback pdf print ads modules 2003 company blank pub games copyright common site comments people aboutus product sports logos buttons english story image uploads 31 subscribe blogs atom gallery newsletter stats careers music pages publications technology calendar stories photos papers community data history arrow submit www s web library wiki header education go internet b in advertise spam a nav mail users Images members topics disclaimer store clear feeds c awards 2002 Default general pics dir signup solutions map News public doc de weblog index2 shop contacts fr homepage travel button pixel list viewtopic documents overview tips adclick contact_us movies wp-content catalog us p staff hardware wireless global screenshots apps online version directory mobile other advertising tech welcome admin t policy faqs link 2001 training releases space member static join health -
Survey of Search and Replication Schemes in Unstructured P2p Networks
SURVEY OF SEARCH AND REPLICATION SCHEMES IN UNSTRUCTURED P2P NETWORKS Sabu M. Thampi Department of Computer Science and Engineering, Rajagiri School of Engineering and Technology. Rajagiri Valley, Kakkanad, Kochi- 682039, Kerala (India) Tel: +91-484-2427835 E-mail: [email protected] Chandra Sekaran. K Department of Computer Engineering, National Institute of Technology Karnataka. Surathkal-575025, Karnataka (India) Tel: +91-824-2474000 E-mail: [email protected] Abstract P2P computing lifts taxing issues in various areas of computer science. The largely used decentralized unstructured P2P systems are ad hoc in nature and present a number of research challenges. In this paper, we provide a comprehensive theoretical survey of various state-of-the-art search and replication schemes in unstructured P2P networks for file-sharing applications. The classifications of search and replication techniques and their advantages and disadvantages are briefly explained. Finally, the various issues on searching and replication for unstructured P2P networks are discussed. Keywords: Replication, Searching, Unstructured P2P network. 1 1. Introduction Computing has passed through many transformations since the birth of the first computing machines. A centralized solution has one component that is shared by users all the time. All resources are accessible, but there is a single point of control as well as a single point of failure. A distributed system is a group of autonomous computers connected to a computer network, which appears to the clients of the system as a single computer. Distributed system software allows computers to manage their activities and to share the resources of the system, so that clients recognize the system as a single, integrated computing facility.