vnStat is a console-based network traffic monitor for Linux and BSD.
It reads network interface statistics supplied by the kernel instead of sniffing packets, and stores those measurements for later querying from the command line. The project includes tools for collecting, caching, and reporting traffic data, making it suitable for keeping long-term bandwidth usage records with very little overhead.
This is free and open source software.
Key Features
- Stores gathered traffic statistics persistently across system reboots.
- Can monitor multiple network interfaces at the same time.
- Provides summary, 5 minute, hourly, daily, monthly, yearly, and top days output modes.
- Lets you configure data retention durations on the fly.
- Can align monthly statistics with a billing period.
- Offers optional PNG image output when built with libgd.
- Uses minimal system resources and can be used without root permissions on most systems.
Website: github.com/vergoh/vnstat
Support:
Developer: Teemu Toivola
License: GNU General Public License v2.0
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