Install vnstati by entering the following commands in the terminal:
sudo apt update sudo apt install vnstati
Description:
image output support for vnStat
vnStati provides image output support for statistics collected using vnStat. The image file format is limited to png. All basic outputs of vnStat are supported excluding live traffic features. The image can be outputted either to a file or to standard output.
Homepage: https://humdi.net/vnstat/
Version: 1.18-1
Section: universe/net