This repository is the lab project for my Computer Network I project in U of T. Please do not directly copy-and-paste and just reference it when you need it.

Implemented a simple client/server program, which interact each other to transfer a file in a connectionless manner. This (fake) file transfer protocol is based on UNIX sockets, and the following features have been implemented:

This protocol is based on UDP, but uses acknowledgements to guarantee reliable transfer

• Flow control
• Congestion control
• Domain Name Resolution
• Various file formats (but not binary files)

This lab uses UNIX TCP sockets to implement a simple text conferencing application. The following features have been implemented:

• Multiple users
• Users must log in with credentials. Server maintains a database for registered users
• Group chat support
• Domain name resolution
• Allow inviting other users to a group chat
• Browse which users are currently online