vnstat 2.9 debian 10 buster

wget https://humdi.net/vnstat/vnstat-2.9.tar.gz
tar xfv vnstat-2.9.tar.gz
apt remove -y vnstat
apt install -y libsqlite3-dev sqlite3
cd vnstat-2.9
./configure --prefix=/usr --sysconfdir=/etc && make && make install
cp -v examples/systemd/vnstat.service /etc/systemd/system/
systemctl enable vnstat
systemctl start vnstat