From ArchWiki
Revision as of 11:05, 20 January 2015 by T.ask (talk | contribs) (Update current version's workflow: "Create Interface Database")
Jump to navigation Jump to search

vnStat is a lightweight network traffic monitor. It keeps a network traffic log on selectable interfaces. Through the command line the network traffic statistics can be shown.


Install vnstat from the official repositories.


Create Interface Database

First you need to create the nvstat director:

# mkdir /var/lib/vnstat

then create the interface database you like to monitor by using the corresponding command. Eg. for eth0:

# vnstat -u -i eth0

or the wireless interface:

# vnstat -u -i wlan0

Updating method

After introducing the interface(s) set one of the update methods.

Warning: Only use one of the methods, do not use them at the same time!


The first method is using Cron. A sample of Cron usage is provided with vnStat at /usr/share/doc/vnstat/examples/vnstat.cron.


The second way is using systemd (and the provided service):

# systemctl start vnstat.service

Auto-load during boot

# systemctl enable vnstat.service

Global settings

Other settings, like settings to control the daemon, can be done in /etc/vnstat.conf.


Query the network traffic:

# vnstat -q

Viewing live network traffic usage:

# vnstat -l

For all the other options, use:

# vnstat --help

Or for a complete list, use:

# vnstat --longhelp

See Also

VnStat Custom WebUI