30 Mar
2011
30 Mar
'11
11:54 a.m.
On Wednesday, March 30, 2011 12:31:31 pm Bob Goodwin wrote:
Is there an application to log system usage that will enable me to keep track of usage by individual computers on our LAN?
[snip]
So I am looking for a scheme for tracking usage by mac or device address. I check usage daily but when I see a jump upward I need to know what caused it, I always begin to think through what I have done before panicking the whole family. Any suggestion appreciated.
ntop is one possibility, and it's present in the Fedora repositories. You need a netflow source; nprobe can do that, and ntop can use built-in interfaces, or can take netflow data from your switch, if that switch is capable of netflow export. You need either what's known as a 'SPAN' port on your switch, or you need a hub on a common connection, possibly the WAN port itself, to be able to sniff all the traffic in lieu of netflow data export.
For the DD-WRT side of things, since you mention that you use that, please see: http://netflowninjas.lancope.com/blog/2009/07/turn-your-linksys-into-a-netfl...
and
http://www.dd-wrt.com/wiki/index.php/Useful_tools_for_the_WiFi_Network