Yahoo

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Contents

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Introduction

The Yahoo! Messenger Protocol is the protocol created by the Yahoo! corporation for use in it's instant messaging client. The protocol is proprietary and centralised in nature with some functionality being P2P.

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Features

The Yahoo protocol has the following features:

  • Avatars
  • Conferencing
  • File transfer
  • Instant messaging
  • Offline messaging
  • Voice chat
  • Webcam support
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Network

The Yahoo protocol connects to its servers over the following ports:

  • Chat port: 5050 (TCP)
  • File transfer port: 80 (TCP)
  • Peer-2-peer chat: 5101 (TCP)
  • Rooms list: 80 (TCP)
  • Voice chat: 5000-5010 (UDP) or 5000-5001 (TCP)
  • Webcam: 5100 (TCP)
  • Yahoo Phone: 5055

Known servers are:

  • Pager server: scs.msg.yahoo.com
  • Pager server Japan: cs.yahoo.co.jp
  • File transfer server: filetransfer.msg.yahoo.com
  • File transfer server Japan: filetransfer.msg.yahoo.co.jp
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Useful Links

Retrieved from "http://imfreedom.org/wiki/Yahoo"
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