Network Monitoring With ntop

ntop is a network traffic tools that shows network usage in a real time. One of the good things about this tool is that you can use a web browser to manage and navigate through ntop traffic information to better understand network status.

Also Ntop monitors and reports hosts traffic and supports these protocols:

• TCP/UDP/ICMP
• (R)ARP
• IPX
• DLC
• Decnet
• AppleTalk
• Netbios
• TCP/UDP

In this tutorial we'll install ntop 3.2 in CentOS 4.

Prerequisites

Ntop 3.2
LIBPCAP
GDBM

Links

http://dag.wieers.com/rpm/packages/ntop
http://rpmfind.net/linux/RPM/fedora/4/i386/glib-1.2.10-16.i386.html 

Installation 

1- Installing G-LIB:

rpm -ivh  glib-1.2.10-16.i386.rpm

2- Installing ntop:

rpm -ivh ntop-3.2-1.el4.rf.i386.rpm

Running ntop

1- Initialize ntop:

ntop

That will initialize ntop and it will ask you to enter your username and password.

The default username: admin

Password: yourEnteredpassword

2- Start ntop service:

service ntop start

Log In To The Web Interface

ntop can be managed through a web interface. You can enter your server address in your web browser:

http://ServerIP:3000

https://ServerIP:3001 

Now you can monitor your hosts and manage your ntop configuration.

Screenshot