Peer-to-Peer - Distributed Consensus Sytem

*Note: Well-known peers are down after June 14, 2024 but this is still a good example of p2p consensus system written in Python

How to start a Peer

• Start a server/peer/node

python3 server.py

or

python3 server.py 16000

The program will print on console

Client | TCP | Host 130.179.28.114 | falcon.cs.umanitoba.ca | Port 39459
Peer   | UDP | Host 130.179.28.114 | falcon.cs.umanitoba.ca | Port 39734

How to connect as CLI

• Client can use telnet with given Host and (Client's) Port

telnet 130.179.28.114 39459

or

telnet falcon.cs.umanitoba.ca 39459

CLIs' commands

• peers - list all known peers.
• current - the current word list.
• consensus <x> - where x is a numeric index. Run a consensus for this word index.
• lie or lie <x> - begin lying. Lie either all the time (default) or with x where is a probability value from 0 to 1.
• truth - stop lying. Always return 'honest' answers.
• set <x> <y> - where x is an index, and y is a word. Set the value x to word y.
• exit - close the command-line interface.