[CLUE-Tech] whats my network doing?

[Jef Barnhart]

One tool that I have used is Ethereal. This will capture the pacets that are traversing the network. You could also use tcpdump. 

I am on AT&T and the traffic that I can see is just arp requests. 

Jef

On Thu, 9 May 2002 05:23:01 -0600
Roger Frank <rfrank at rfrank.net> wrote:

> Another quiet morning, up at 4 to get some work done before school.  I look 
> at the activity lights on the broadband modem connecting my web site server 
> to the internet and they are showing a lot of traffic.  Some teacher 
> somewhere is downloading a lesson plan or a project.
> 
> Or maybe not.  I go to the standalone machine that has the web site and
> look at  /var/log/http/access_log and I see two recent attempts with bad 
> headers from 217.225.223.158 and 211.195.113.201 along with the usual 
> plethora of attempts by windows viruses.  The /var/log/http/error_log records 
> the bad headers.  But what traffic is going now, I wonder, showing up in the 
> Tx and Rx leds?  I look at `who` to see that nobody else is logged in.  I 
> look at `ps -aux` to see nothing unusual that I can spot.
> 
> How do I see who is getting data from my website while it is happening?
> `ifconfig` shows a lot is happening, but not in enough detail.  I would like 
> to know (1) who is accessing me and (2) what they are getting.  My concern is 
> that they are getting nothing from me but instead using my machine for 
> nefarious purposes.
> 
> Any clues, cluebies?  What log should I check?  What software tool should I 
> use?  Thanks!
> 
> ---
> Roger Frank
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