Network Monitoring

[Matthew Carpenter]

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If there is a Linux box on the way out (eg.  firewall, router, or just
sniffing)  ntop is your friend.

ntop not only captures but shows statistics via a web interface.  Very
nice stuff.  I've done it a lot.

NTOP will also accept NetFlows from Cisco (and other) gear.  Talk to
your router-jockies about that one.

Wil McGilvery wrote:
| Ethereal is a great tool. Use it to capture traffic to and from the
Ethernet.
|
| Regards,
|
| Wil McGilvery
| Manager
| Lynch Digital Media Inc
|
|
|
| 905-363-1600
| 905-363-4297 Ext. 248
| 416-716-3964 (cell)
| 1-866-314-4678
| 905-363-1194  FAX
| www.LynchDigital.com
|
| -----Original Message-----
| From: linux-users-bounces at linux-sxs.org
[mailto:linux-users-bounces at linux-sxs.org] On Behalf Of A. Khattri
| Sent: Thursday, February 17, 2005 11:36 PM
| To: Linux tips and tricks
| Subject: Re: Network Monitoring
|
| On Thu, 17 Feb 2005, Ben Duncan wrote:
|
|
|>Anyone know of a good network monitor tool (for Linux)?
|>
|>One of my customers has a T1, and for some reason, something is eating up
|>bandwidth. A test on one of those "test my bandwidth" sites shows I am
only
|>getting about 18K thru.
|>
|>I cannot convince the Windows Admin that she has something wrong or
there is
|>something going on. Her answer "Well, I'll just reboot the PDC and
servers" ...
|>
|>I would like to be the hero and isolate what (or who) is eating up the
bandwidth ...
|
|
| You could put a box inside the network running MRTG to graph each
| machine's bandwidth... Also the web-based Cacti has a nice interface to
| setup RRD to do something similar.
|
|
| --
|
|
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|
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irc.linux-sxs.org !
|
|
| _______________________________________________
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|
| Need to chat further on this subject? Check out #linux-users on
irc.linux-sxs.org !
|
|
|

- --
Matthew Carpenter
matt at eisgr.com                          http://www.eisgr.com/

Enterprise Information Systems
* Network Server Appliances
* Security Consulting, Incident Handling & Forensics
* Network Consulting, Integration & Support
* Web Integration and E-Business
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