✿ flower — Netflow viewer

This package is based on Sghazzawi's Node-Netflowd, and is intended to replace National Taiwan Ocean University's dormitory flow viewer.

Design

• Gathers all Netflow packets and updates on-the-fly (features socket.io for instant push to client)
• TODO: Trigger to deal with banned users.
• For an interval (10 minutes), the system writes the data to postgresql database.
• TODO: The user can check the usage history in daily and hourly perspective.
• TODO: The usage log can be deleted after a long period.
• TODO: API support for external program.

Prerequisities

• A Cisco router (or compatible one) which can output Netflow packet v5 format.
• node.js with npm (nvm for rescue)

Up and running

• install postgresql (apt-get install postgresql in Debian or Ubuntu) then configure its user account and password
• npm install
• cp config.example.js config.js
• edit config.js for your environment
• node app

It is prefered to use forever to run for a long period.