Calculate Traffic when vnstat stopped! about vnstat HOT 4 CLOSED

You'd need to add the --sync parameter to the daemon startup parameters in order to achieve such behaviour. Because such configuration isn't usually needed, there's no configuration file option available. In Debian 11, you'd need to locate the active vnstat.service or vnstatd.service file and edit it. By default, it should contain a line like this:

ExecStart=/usr/sbin/vnstatd -n

Modify it to look like

ExecStart=/usr/sbin/vnstatd -n --sync

as in, add the --sync parameter to the end of whatever that ExecStart line has. Finally save the file and reload systemd or reboot. After that change, vnStat will stop trying to track traffic if the daemon is stopped for some time and then restarted without the system being rebooted. The vnstatd man page has also some more details regarding this parameter.

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Hi @vergoh
Would you please check this?

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Hi @vergoh
Thank you for response.
From which version (--sync) is supported?

from vnstat.

It has been there starting from version 1.8: https://github.com/vergoh/vnstat/blob/master/CHANGES#L517

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