vnStat

vnStat is a console-based network traffic monitor that uses the network interface statistics provided by the kernel as the information source. This means that vnStat won’t actually be sniffing any traffic and also ensures light use of system resources.

By default, traffic statistics are stored on a five minute level for the last 48 hours, on an hourly level for the last 4 days, on a daily level for the last 2 full months and on a yearly level forever. The data retention durations are fully user-configurable. Total seen traffic and a top days listing are also provided. Optional png image output is available in systems with the gd library installed.

Feature

• quick and simple to install and get running
• gathered statistics persist through system reboots
• can monitor multiple interfaces at the same time
• several output options
  • summary, 5 minutes, hourly, daily, monthly, weekly, yearly, top days
  • optional png image output (using libgd)
• data retention duration is fully user configurable on the fly
• months can be configured to follow the billing period
• light, minimal resource usage
• same low cpu usage regardless of traffic
• can be used without root permissions
• online color configuration editor

Changelog v2.4

• Fixed
  • Daemon didn’t correctly wait when acquiring database lock for data write
    which could result in unnecessary errors and even process exit if an
    external database read operation had exactly the same timing as the
    daemon write operation
  • Daemon didn’t fork() even when requested to with --daemon when started
    by PID 1 (issue seen at least in Docker containers)
  • Move vnstatd man page from section 1 to section 8
• New
  • Add --rename for renaming interfaces already existing the database

Download & Use

Copyright (C) 2017 vergoh