Network monitoring software

ctkroeker · 07-12-2005, 04:45 PM

Is there a Program that will let me see which users are online and how much bandwidth they are using?
I'm on a network of about 15 users, and sometimes my bandwidth (download speed) is WAY to low.

Any Progaram that'll do that?

Matir · 07-12-2005, 04:54 PM

Do you have some gateway machine between all the users and the internet? If not, how do you plan to capture their traffic? mrtg should fit the bill for you, but I'm not 100% certain.

mikedeatworld · 07-12-2005, 04:55 PM

is your machine a server?

leonscape · 07-12-2005, 05:00 PM

For monitoring my network I use a bunch of tools, but you do need to run these on a central server/gateway or have access to it, to see the traffic from the other users.

ehterApe is a good graphical one. theres also IPtraf which is console based.

ctkroeker · 07-12-2005, 06:06 PM

Ok, maybe I should have explained it better. Here goes.
Most of the PC's are directly connected to a hub, which is plugged into a hardwear router, which is plugged into the Internet.

Matir · 07-12-2005, 09:08 PM

In that case, there is no way to see the traffic from the other computers on your computer.

mikedeatworld · 07-13-2005, 12:01 AM

hence why i asked my my first question...

mikedeatworld · 07-13-2005, 12:02 AM

you could build a router/firewall with an old machine, and forget your hub/router that you bought...

its pretty easy with coyoteLinux, shorewall, etc

born4linux · 07-13-2005, 01:51 AM

Quote:

Originally posted by Matir
In that case, there is no way to see the traffic from the other computers on your computer.

actually, there is: via SNMP. google.com/linux for "rrdtool snmp howto".

mikedeatworld · 07-13-2005, 07:34 AM

i believe this still has to be done from a centralized machine which all traffic flows (i.e. server)

Matir · 07-13-2005, 08:51 AM

I think that with SNMP the other machines have to be explicitly told to send SNMP broadcasts.

mikedeatworld · 07-13-2005, 11:45 AM

good point, i just have never seen or heard of network monitoring done that way.

Matir · 07-13-2005, 12:56 PM

Of course, you could try to convince them all to run Nagios for you.

mikedeatworld · 07-13-2005, 04:51 PM

thats funny because we run that -- at my work place

http://www.nagios.org/

mikedeatworld · 07-13-2005, 04:51 PM

and i didnt even think of SNMP -- or nagios...