bittorrent
TRANSCRIPT
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Contenido
➢ Introducción➢ Arquitectura ➢ DHT➢ Enlaces Magneticos➢ Algoritmos ➢ Conclusión
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Introducción
Bittorrent es un protocolo diseñado para transmitir archivos a través de conexiones peer-to-peer.
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Terminologías
Peer (Punto)Seeder (Semilla)Warm (Enjambre)Tracker (Rastreador)Leeches (Sanguijuelas)
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Archivo .torrent
{‘announce’: ‘http://bttracker.debian.org:6969/announce’
‘info’: {‘name’: ‘debian-503-amd64-CD-1.iso’, ‘piece length’: 262144, ‘length’: 678301696, ‘pieces’: ‘841ae846bc5b6d7bd6e9aa3dd9e551559c82abc1 … d14f1631d776008f83772ee170c42411618190a4’ } }
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Funcionamiento
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Funcionamiento
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Funcionamiento
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Funcionamiento
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Funcionamiento
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Funcionamiento
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Otras terminologías
● Piezas y bloques.● Interesado y bloqueado.● Conjunto de peers.● Peer locales y remotos.● Conjunto de peers activos.● Piezas más raras y conjunto de piezas más
raras.
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DHT
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Enlaces magneticos
magnet:?xt=urn:btih:IJBDPDSBT4QZLBIJ6NX7LITSZHZQ7F5I
NO .torrents
Btih = infohash
Buscan peers desde DHT
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Algoritmos
● Rarest First Algorithm● Choke Algorithm
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Conclusion
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Mejoras
➢ Superseed➢ Webseeding➢ MultiTracker➢ DHT
○ Mainline○ Azureus
➢ Enlaces magneticos
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Tolerancia a fallos
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Tolerancia a fallos