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Questions tagged [ntop]

39 questions
7
votes
3 answers

Network Sniffing and Hubs

This will likely seem naive to the experts... but it has been on my mind lately. For years I've been using ntop and a cheap 4 port hub to sniff client networks to determine who's doing what -- and how much. Great way to see what's going on when they…
Chris_K
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4
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3 answers

When ntop is restarted the ntop counter gets reset and all stats are gone

I am using Ntop 3.3-13 to collect statistical data about network usage. When Ntop is restarted, all counters get reset and Ntop traffic stats page starts showing the output from the beginning. How can I prevent this from happening? How can I…
Abhishek A
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3
votes
2 answers

Howto prevent ntopng causing out of disk space and inodes?

I've been trying the ntopng software from http://www.ntop.org/get-started/download on a CentOS box at work to monitor what is happening on our network. The problem I'm having is that I can't find any part of the software that gives an option to…
BeowulfNode42
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3
votes
1 answer

nfsen per IP bandwidth and protocol usage graphs

I've been trying to use nTop for the past week and I've gotten a little fed up with the fact that it loses all the data that it's stored after a reboot. Consequently, while looking for alternatives, I've come across multiple suggestions of…
Seanny123
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3
votes
2 answers

What are some decent competitors to ntop?

I've been trying to use ntop at my organization for a while and have had nothing but problems with it. The system I run it on is a fairly vanilla Redhat 5 system (Sun X4140) and ntop seems to run for a couple of days and then crashes. We've had to…
Luke
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2
votes
5 answers

ntop usage to monitor bandwidth

I'm attempting to monitor the bandwidth usage on our network. I've come across two products that seem to fulfil our needs. MRTG and nTop, however I'm unsure which to use. My work is a small company of about 10 people. We have a standard 4 port ADSL2…
Leah Calum
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2
votes
2 answers

Method to log amount of transmitted data per each IP address in linux

I am looking for a method in linux to log the amount of data transmitted (received and sent separately) for every single IP address to which the data was sent to or received from. These statistics would be running on the router, behind which is a…
Fermion Portal
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2
votes
2 answers

NTopng - Unable to start HTTP server on port 3000 - Can't login to web gui

I can access NTop via IP:3000 though the default login/pass doesn't go anywhere, just a refresh. And when running "ntopng -v -G /var/run/ntopng.pid -i 1 -s" I get: [HTTPserver.cpp:350] HTTPS Disabled: missing SSL certificate ?…
Jay
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2
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0 answers

How can I set ntop not to shorten host names?

With most screens in ntop, there is a list of hosts. Unfortunately, in almost every one, the host name is shorted, for some reason. When the host names follow the company standard, this results in the main identifying section of the hostname…
Andrew
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2
votes
1 answer

ntop to analyse bandwidth usage on multiple ASA 5505

I have set up a netflow server at our data centre, which is connected via VPN to ~40 remote offices using Cisco ASA 5505. The aim is to analyse usage data and find out exactly how the remote connections are being used. I followed through…
dunxd
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2
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3 answers

ntop: Which HTTP downloads (URLs) caused the traffic?

My server causes too much traffic, so I have installed ntop to monitor it. On the Summary -> Traffic page in the Global TCP/UDP Protocol Distribution table I can see the traffic is periodically caused by HTTP. On the All Protocols -> Traffic page in…
Witek
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2
votes
3 answers

ntop vs nagios to Monitoring Networking traffic

Hi i need to monitor ntop to monitoring networking traffic but i am concern if its going to affect somehow my server performance.... i've been also recomend to use Nagios but i am not quite sure if is possible to get a Bandwidth monitor out of…
Necronet
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2
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1 answer

NTOP vs NFSEN, which one?

I want to monitor Cisco's newflows. Which one of these tools do you recommend?
Andre
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2
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2 answers

Problems with getting both ingress and egress Netflow data

I have a Cisco 6500 switch that I want to capture all vlan8 traffic incoming and outgoing. I talked with my networking group and they set me up with the following commands. (May not be exact commands but this was an example I gave them) conf t ip…
user22492
1
vote
0 answers

How to analyze the latencies (application latency and rtt) of various applications in a citrix receiver?

Ntopng can identify the citrix flows but I am not able to see the information about the different applications running inside Citrix receiver. I am using Ntopng on ubuntu 14.04.
Prasanthi
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