This is a text-only version of the following page on https://raymii.org:
Title : ntop-ng 1.1 installation on Ubuntu 12.04
Author : Remy van Elst
Date : 29-11-2013
URL : https://raymii.org/s/tutorials/ntop-ng-installation-on-Ubuntu.html
Format : Markdown/HTML
This is a guide on installing the latest ntop-ng (1.1) on Ubuntu 12.04.
ntopng is the next generation version of the original ntop, a network traffic probe that shows the network usage, similar t
o what the popular top Unix command does. ntop is based on libpcap and it has been written in a portable way in order to virtua
lly run on every Unix platform, MacOSX and on Win32 as well. ntopng users can use a a web browser to navigate through ntop (tha
t acts as a web server) traffic information and get a dump of the network status. In the latter case, ntop can be seen as a sim
ple RMON-like agent with an embedded web interface.
This tutorial will walk you through the compilation and installation of ntopng
from source. The package in the Ubuntu 12.04 repositories it quite old.
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### What can ntopng do?
* Sort network traffic according to many protocols
* Show network traffic and IPv4/v6 active hosts
* Store on disk persistent traffic statistics in RRD format
* Geolocate hosts
* Discover application protocols by leveraging on nDPI, ntops DPI framework.
* Characterise HTTP traffic by leveraging on characterisation services provided by block.si.
* Show IP traffic distribution among the various protocols
* Analyse IP traffic and sort it according to the source/destination
* Display IP Traffic Subnet matrix (who is talking to who?)
* Report IP protocol usage sorted by protocol type
* Act as a NetFlow/sFlow collector for flows generated by routers (e.g. Cisco and Juniper) or switches (e.g. Foundry Networks
) when used together with nProbe.
* Produce HTML5/AJAX network traffic statistics
[More information on ntop-ng can be found on their website:
This is what we are going to do:
* Install required packages
* Download files
* Place ntopng-data
* Compile ntopng
* Create config file
* Test ntopng
* Place upstart script
Here's what you need:
* Ubuntu 12.04 installation
* Debian 7 also works
[This tutorial was tested on a DigitalOcean VPS. If you use this link you
sponsor this website. (referral link)]
### Note about checkinstall and packages
We are using checkinstall here to create a debian package of the source we
compile. I do this because it gives more flexibility in managing the software
afterwards. Upgrading or uninstalling the packages is easier than removing all
the things make install placed. Furthermore, it makes it more clear for other
administrators which software is installed.
If you for example want to upgrade ntop-ng when it was installed via this
tutorial with checkinstall, repeat the tutorial with only the version number
### Installing required packages
These are the packages we need to build and use for ntopng
apt-get install libpcap-dev libglib2.0-dev libgeoip-dev redis-server wget libxml2-dev build-essential checkinstall
### Download the files
We need to download both the data files and the source code. You can download it [from sourceforge]:
mkdir -p /usr/local/src
wget "http://downloads.sourceforge.net/project/ntop/ntopng/ntopng-data-1.1_6932.tgz" -O ntopng-data-1.1.tar.gz
wget "http://downloads.sourceforge.net/project/ntop/ntopng/ntopng-1.1_6932.tgz" -O ntopng-1.1.tar.gz
### Place ntopng-data
The data files contain files for the web interface like the GeoIP database. They
are already good, the only thing we need to do is place them:
tar -xf ntopng-data-1.1.tar.gz
cp -r ./usr/* /usr
### Compile ntopng
The compilation of ntopng itself is a bit more work, this is because the ntopng
1.1 package includes prebuilt .o blobs for third party tools, probably by
accident, which will cause you trouble when building ntopng yourself. We need to
clean those up.
First we extract:
tar -xf ntopng-1.1.tar.gz
Then we configure:
Start the actual compilation:
And install the thing:
The default answers for checkinstall are okay.
### Creating the ntopng config file
First we create the required folder:
mkdir -p /etc/ntopng
There are two files needed. First is `/etc/ntopng/ntopng.start`:
To see all available interfaces and options, use the `ntopng -h` option:
Available interfaces (-i ):
Then there is the `/etc/ntopng/ntopng.conf` file:
Again, with the `ntopng -` option you can see all the possible options for use
in this config file.
Before starting the test, make sure redis is started:
### Test ntopng
If the compilation gave no errors and the config files are places we can start
`ntopng` and see how it works:
Use your web browser to navigate to `http://your-ntop-box-ip:3000`. There you
can login with the username/password combo `admin/admin`.
If this works, and there is data visible as in the screenshots, continue on to
set up the upstart script.
### Upstart script
This is a simple upstart script which can be used to start, stop and restart
ntopng. Place it in `/etc/init/ntopng.conf`:
# ntopng network flow analyzer
# by https://raymii.org
description "ntopng network flow analyzer"
start on virtual-filesystems
stop on runlevel 
respawn limit 5 30
limit nofile 65550 65550
exec /usr/local/bin/ntopng /etc/ntopng/ntopng.conf
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