NTOP is a network monitor.

It has a web interface for viewing statistics.

I installed it via sudo apt-get install ntop on Ubuntu 2012.04, the daemon got started at the end of the install, without me doing anything special.

QUESTION: How to access the web interface?

http://localhost:4242 says Unable to connect.

I tried stopping the daemon and launching it in various ways:

sudo ntop -P /etc/ntop -W4242 -d

sudo ntop -P /var/lib/ntop/ -W4242 -d

But still Unable to connect.