vnstat

# vnstat --testkernel

# vnstat --iflist
Available interfaces: lo eth0

# vnstat -u -i eth0
Error: Unable to read database "/var/lib/vnstat/eth0".
Info: -> A new database has been created.

last 24 hours stats, custom output

I don't like the stats reported by vnstat -h. I am not interested in KB/hour. I want average Mb/s. The following command will give those stats...

# vnstat --dumpdb | grep ^h | awk -F ";" '{ print "hour", $2 "-" $2+1,"rx(Mb/s):", $4/3600000*8, "tx(Mb/s):", $5/3600000*8 }'

create monitor accounts on destinations configure authorized_keys test account install vncstat / vncstatd add vncstatd to startup

# chown root:monitor /var/lib/vnstat/*
echo '#!/bin/bash' >> /etc/rc4.d/S11vncstatd
echo "/usr/sbin/vnstatd -d" >> /etc/rc4.d/S11vncstatd