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Contents
# vnstat
# install vnstat
http://humdi.net/vnstat/vnstat-1.6.tar.gz
sudo apt-get install vnstat
# initialize it for a virtual interface
vnstat -u -i vif-apt
# generate images
http://humdi.net/vnstat/vnstati-beta3.tar.gz
apt-get install libgd2-noxpm-dev libgd2-noxpm
vnstati -s -i vif-apt -o /tmp/vnstat.png
# php web frontend
http://www.sqweek.com/sqweek/files/vnstat_php_frontend-1.3.tar.gz
# Steps for setting up vnstat on a new Xen dom0
1. Install vnstat on host
# Steps for adding a new server to vnstat monitoring
1. Add it to vnstat monitoring
vnstat -u -i web2-eth0
2.
#
# Add all eth interfaces
#
for x in `ls /proc/sys/net/ipv4/conf | grep eth | cut -f 1 -d' '`; do
vnstat -u -i $x
done
#!/bin/bash
#
# Dump vnstat data
#
dump_dir=/var/lib/vnstat_dumps
test -d $dump_dir || mkdir -p $dump_dir
for x in `ls /var/lib/vnstat/*-eth*`; do
vnstat --dumpdb -i `basename $x` > ${dump_dir}/vnstat_dump_`basename $x`
done
for x in eth0 eth1; do
vnstat --dumpdb -i $x > ${dump_dir}/vnstat_dump_`hostname`-$x
done
#!/bin/bash
#
# Pull vnstat metrics back from Xen dom0's
#
dump_dir=/var/lib/vnstat_dumps
test -d $dump_dir || mkdir -p $dump_dir
for x in sm03; do
rsync -avz ${x}:${dump_dir}/ /var/www/vnstat/dumps/
done
#
# Separate internal and external traffic on NAT'ed slices
#
The following in /etc/network/interfaces will allow us to monitor
internal and external traffic by reading separate interface counters
on the domU.
# First IP on internal network (for external traffic)
auto eth0
iface eth0 inet static
address 192.168.1.70
netmask 255.255.255.255
# Second IP on internal network (for internal traffic only)
auto eth1
iface eth1 inet static
address 192.168.1.71
netmask 255.255.255.0
# Route external traffic out eth0
up route add -net 192.168.1.1 netmask 255.255.255.255 dev eth0
up route add default gw 192.168.1.1
Version data entries
144 entries across 144 versions & 5 rubygems