nTop and MRTG! Yay!

A

AtomicFire

[H]ard|Gawd
Joined
Dec 7, 2001
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So tonight I discovered nTop and MRTG - possibly two of the greatest network tools ever created...ever.

nTop turns my router into a super packet sniffer, telling me exactly what goes where when and how fast and what its doing...all with nice pretty graphs and such.

MRTG just shows throughput though my router and graphs it on a graph with x-scale being time.

I must have wasted 5 hours of my life just playing with this stuff today :p
 
if NTOP gets you going, check out netflow with a nice grapher (like Netflow Tracker)
 
I just downloaded and installed ntop on my FC4 box that sits at the perimeter of my network. When i run ntop is says something about ERROR RRD, unable to create directory -> blah blah /graphics. Now im assuming i dont have this thing fully configured because i do not have what i think is RRD installed. Is this a graphical interface to ntop? How do i get to ntop from a local machine within my network? I just have http setup so would it be "http://machineip/ntop"? Is there a good tutorial to install this thing? Also, when i finished closing ntop it showed that it had captured 16,000 packets so i know it is seeing what it should i just need help getting to the interface and interpreting what ntop has found. Any help would be appreciated. Thanks.

-km
 
nevermind, got it working from the local machine (localhost sitting at the box), however now i want to be able to enter "http://xxx.xxx.xxx.xxx:3000" into any machine on our local network and be able to see the same ntop graph. Is there a way to do this? Ntop creates its own http server correct? Can i port it over to apache and just lock down the folder with a username/psswd?
 
Just did a work around by creating an ssh tunnel to the box over port 3000. No more questions, ;)
 
Not to thread hijack here but has anyone had any luck with anything that does Ntop with Sflow as well? our core switch is an extreme networks 6808. We have been testing ManageEngine's NetFlow Analyzer 4, it's a great product but won't do sflow, which I want.
 
was just playing with Cacti...awesome system. Cacti + nTop is enough to satisfy any network geek :p awesome
 
AtomicFire said:
was just playing with Cacti...awesome system. Cacti + nTop is enough to satisfy any network geek :p awesome
Click to expand...

Add in nagios and then I'll agree. :D
 
Hmm, just looked at my graphs where i'm doing a wackload of SNMP monitoring - in every graph is a blank spot, like someone just unplugged the network plug for a few minutes and plugged it back in. Weird, though 'cause it does it on both the local monitoring of the computer, and on stuff its monitoring over the network. :confused: oh well, a project for another day.
 
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