p2p

How NAT traversal works in case of peer to peer protocols like bittorrent.

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问题 I know about NAT traversal and about STUN, TURN and ICE and its use. I want to know whether these are implemented in peer to peer file sharing application like bittorrent. Whether trackers facilitate peers behind NATs to communicate with each other by helping in creating direct connection using STUN or relay through TURN. In the case of Distributed Hash Table(DHT) how one peer would communicate with other peer behind NAT ? 回答1: BitTorrent does not need to connect to any particular member in a

WebRTC with 3 users connection

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问题 I'm now implementing the source code from WebRTC Samples to become 3 users connection by using mesh topology. However, my code doesn't work as I thought it would be. I think I'm stuck at calling function iceCallBack# (# refers to number 1, 2 ,3) because the output result is the same as the original. It only can connect 2 users. I don't know how to fix it in proper way. Here is some of my JavaScript code that I have been working on: var audio2 = document.querySelector('audio#audio2'); var

C++ Winsock P2P

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问题 Scenario Does anyone have any good examples of peer-to-peer (p2p) networking in C++ using Winsock? It's a requirement I have for a client who specifically needs to use this technology (god knows why). I need to determine whether this is feasible. Any help would be greatly appreciated. EDIT And I would like to avoid using libraries so that I can understand the underlying source code and further my knoweldge. 回答1: Since I don't know what information you are looking for, I'll try to describe how

How can I make a browser to browser (peer to peer) connection? [closed]

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问题 As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance. Closed 7 years ago . How can I write a website using HTML5 , CSS and JavaScript on client side that will allow direct tcp/ip connection between the client

浅谈P2P、P2C 、O2O 、B2C、B2B、 C2C的区别

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浅谈P2P、P2C 、O2O 、B2C、B2B、 C2C的区别 https://www.cnblogs.com/zhuiluoyu/p/5481635.html 相信有很多人对P2P、P2C 、O2O 、B2C、B2B、 C2C不是很熟悉，甚至是云里雾里，每天看着这些常见又陌生的名词，如果有人跟你说让你解释它的含义，金融的小伙伴们是不是瞬间石化了，尤其是做淘宝、微商的同志，是不是欲言又止了，哑口无言了?它的概念意义你真的懂吗?来吧，跟着小编一起来真正的了解下它们的含义和区别吧!文章有点长，请大家耐心看完。　　P2P、P2C 、O2O 、B2C、B2B、 C2C的概念解析：　　 P2P到底是什么呢? 　　P2P借贷是一种将非常小额度的资金聚集起来借贷给有资金需求人群的一种民间小额借贷模式。P2P是“Peer-to-Peer”的简写，个人对个人的意思，P2P借贷指个人通过第三方平台(P2P公司)在收取一定服务费用的前提下向其他个人提供小额借贷的金融模式。　　 P2P模式　　第一种是纯线上模式，是纯粹的P2P，在这种平台模式上纯粹进行信息匹配，帮助资金借贷双方更好的进行资金匹配，但缺点明显，这种线上模式并不参与担保; 　　第二种是债权转让模式，平台本身先行放贷，再将债权放到平台进行转让，很明显能让企业提高融资端的工作效率，但容易出现资金池，不能让资金充分发挥效益。　　

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1.概念原理现在基本上很多网络应用的软件都涉及p2p技术(QQ,PPS,对战平台…),p2p技术旨在于摒弃以前只能从服务器获得资源的观念,每台电脑都是一个peer,都可以从其他peer上获取自己想要的资源,而同时自己也在向他人共享自己的资源.这里有一个很大的优势就是可以极大程度节省服务器的带宽. 打个比喻,优酷和pps,一个是基于服务器->客户端的模式,一个是p2p技术,优酷要想为用户提供高清视频只能通过优化视频压缩(例如最新的H.264)和增大自身服务器带宽.而pps完全不用担心带宽问题,只要用户数量多的话基本上可以满速观看视频. 在这里在停停,pps采用的是rmvb压缩封装,体积比h264flv大上十倍,但是pps依然可以流畅观看.这就是p2p技术的优势. 在中国大部分用户都使用路由器或交换器之类的其他NAT设备来共享网络,这使得不同内网的用户之间的交流变得十分困难,p2p技术的出现确实另其变得可行和简便. 2.发展历程自P2P广受关注以来，它的发展历程大致可以分为3个阶段：第一阶段，1999年至2000年左右，P2P技术由应用开发向学术研究发展。因为当时P2P技术刚重新受到关注，涌现了许多著名的P2P应用系统，但由于P2P存在安全、标准和版权等缺陷，许多应用都被扼杀。P2P技术的完善迫在眉睫，于是越来越多的学者开始研究P2P技术，旨在更好地应用它。第二阶段

p2p file transfer over internet

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问题 I know there are several similar questions out there such as this one. I need to set up a connection between two computers and be able to send a large file. Let me explain the problems that I encountered when reading similar posts: 1) lots of them talked about tcp connections. I was able to send data but most of the time I was not able to send large amounts of data. 2) most of the examples where created in local networks. I was able to send data over two different networks over the internet

Python says global name not defined

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问题 This is the code for p2p based on sockets that I am working on. Whenever I try to execute this I get global name not defined error. import socket import os.path import sys import urlparse import threading class Node: def startlisten(sock): sock.listen(6) while True: c,addr = sock.accept() print "Client connected all set to go : "+str(addr) thread1 = threading(target=retrfile,args=(c,)) thread1.start() def __init__(self): self.port=raw_input("Enter the port: ") self.shareddir=raw_input("Enter

Peer-to-Peer Communication HolePunching (Android)

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问题 I am working on an app that uses peer-to-peer communication between Android devices. It receives and delivers JSON data and the data never goes through the server ever. The server is only used to keep track of user IDs, login times, IP changes, and other stuff. This app will use sockets for communication. Requirements JSON data goes directly to an Android device from another Android device without going through server. The android devices can be connected to any kind network like 3G or Wi-Fi

Sending ArrayCollections via P2P Flex

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问题 I have a question regarding P2P with flex. When passing data between two applications using P2P. I get the following error: warning: unable to bind to property 'piece' on class 'Object' (class is not an IEventDispatcher) I've spent a few days using Google to try and find a solution, but a can't get rid of that error. I've tried using ObjectUtils, direct assignment, and creating a new ArrayCollection WITH the ObjectUtils inside the parenthesis and still can't solve the problem. Purpose of code