The GNOME Network Tools window allows you to monitor network resources from a graphical window on your GNOME Desktop. To open the Network Tools window, select Applications >> System Tools >> Network Tools. Eight tabs on that window let you perform different operation on your network.
The Device tab displays information about each of your network interfaces. It makes it easy to find the names and addresses associated with each of your network interfaces (IP addresses, broadcast, netmask) as well as information on data transmission and collisions.
On other tabs, you can run graphical version of: the ping command (to see if another computer can be reached on your network), netstat command (to see information about routes and network services), and traceroute command (to watch the network hops from your site to a remote host).
You can do a portscan with nmap (to check for open ports on a network interface), DNS lookup (to get information about a domain name system server), finger (to see who is logged into a local machine or remote host computer), and whois (to get information about domain name registration).
Note: If GNOME Network Tools window is not installed on your Linux system, you can install it manually.
If you are using Fedora type: yum install gnome-nettool as root in a Terminal window.
If you are using Ubuntu type: sudo apt-get install gnome-nettool
The procedure may be different, if you are using some other Linux distro.
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