On Thu, 2003-10-16 at 16:31, Brian Horncastle wrote:
> Just wondering if anyone knows of any good bandwidth monitoring programs for
> Linux? I'm looking for something that will monitor total incoming and
> outgoing traffic for an interface. Also, I'm looking preferably for a
> console app. I don't care about graphing too much, and really don't want to
> put Apache on the box in question.
I myself use one of the most simplest way of monitoring bandwidth: using
the iptables counters. I setup a few rules to log traffic by service so
I know how much bandwidth http, smtp, this that and whatever uses and a
total. All you need is a 2.4 kernel with iptables running.
I've attached the script that I use to set it up and a config file to go
with it (just a list of port numbers used in the for-loop in the
script). Use "iptables -L -v" to see the numbers you'll be interested
in.
Nothing elegant about it, but it serves my purpose and I don't need to
install special software that make it look pretty.
--
Gerard Beekmans
http://www.linuxfromscratch.org
http://www.beekmansworld.com
/* Linux Consultant --- OSDN / DevChannel *
* Technical Writer --- CheapBytes */
/* If Linux doesn't have the solution, you have the wrong problem */
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#!/bin/bash
cd /root/iptables-bandwidth-logging
case $1 in
start)
iptables -N ACCOUNTING
iptables -A OUTPUT -o eth+ -j ACCOUNTING
iptables -A INPUT -i eth+ -j ACCOUNTING
for port in $(cat services); do
iptables -A INPUT -i eth+ -p tcp \
--dport $port -j ACCOUNTING
iptables -A OUTPUT -o eth+ -p tcp \
--sport $port -j ACCOUNTING
done
iptables -A OUTPUT -o eth+ -p tcp \
--dport 25 -j ACCOUNTING
iptables -A INPUT -i eth+ -p udp \
--dport 53 -j ACCOUNTING
iptables -A OUTPUT -o eth+ -p udp \
--sport 53 -j ACCOUNTING
;;
stop)
iptables -L -v > iptables-$(date +%Y%m%d-%H%M)
iptables -D OUTPUT -o eth+ -p udp \
--sport 53 -j ACCOUNTING
iptables -D INPUT -i eth+ -p udp \
--dport 53 -j ACCOUNTING
iptables -D OUTPUT -o eth+ -p tcp \
--dport 25 -j ACCOUNTING
for port in $(cat services); do
iptables -D INPUT -i eth+ -p tcp \
--dport $port -j ACCOUNTING
iptables -D OUTPUT -o eth+ -p tcp \
--sport $port -j ACCOUNTING
done
iptables -D INPUT -i eth+ -j ACCOUNTING
iptables -D OUTPUT -o eth+ -j ACCOUNTING
iptables -X ACCOUNTING
;;
restart)
$0 stop
sleep 1
$0 start
;;
*)
echo "Usage: $0 {start|stop|restart}"
;;
esac
