About NTAC project
Network Traffic Analyzer is small tool which runs on linux-based router
and measure amount of bytes transfered for accounts defined in it's
configuration. These accounts may be router's interfaces, networks or
hosts in routed networks. Output is written as a set of html pages with
statistics and png images with graphs into specified directory which
should be acessible by http daemon. It is based on NTA written in perl, but
it is written from scratch in C++ with some features added and with
significat performance gain.
10.12.2005 Initial version of web pages created.
29.11.2005 Initial version of source codes published on SourceForge.net
25.11.2005 NTAC project registered on SourceForge.net
NTAC was written for accounting network traffic on linux router for
small-sized networks. One of reason for writing NTAC was performance
issues with previous sowtfare, thus it should
smoothly account tens hosts on 200MHz pentium.
How it works
Ntac should be run every 3 minutes by cron. It reads input data from
/proc and from iptables. Then it stores statistics in file with
proprietary format and write html and png output.
Ntac is distributed as a package of source codes. It must be compiled
with the following libraries:
Then it can run on a linux system with cron daemon and http daemon. I
run it on Debian woody, but it may run on other distibutions or even
- download and unpack archive
- compile ntac executable: run "make" in src subdirectory
- edit and add script nta_iptables into your stratup scripts.
It creates iptables rules for accounts.
- add line "*/3 * * *
root (cd /opt/ntac/directory/; ./ntac)"
into /etc/crontab file
- edit ntac.conf, set apropriate output directory and accounts
- copy ntac.css into output directory