Application: Tux Cut What it is: Tux cut is this is a simple program to disconnect the network user in the same network , NetCut is a Software that helps network admin by purely on ARP protocol . List IP-MAC Table in secs, turn off & On network on any computer on your LAN including any device like router , switcher. Also, can protected user from ARP SPOOF attack . To know more about: http://www.keralalinux.com/2011/01/17/disconnect-a-network-user-from-the-network-using-tuxcut-in-ubuntu-debian.html To Install in Ubuntu: First you have to download .deb file from here(https://bitbucket.org/a_atalla/tuxcut/downloads/TuxCut-3.2_all.deb) now open a terminal an type the following $sudo dpkg -i TuxCut-3.2_all.deb -- Cheers, Dhastha A Kanchi Linux User http://kanchilug.wordpress.com My Works on Linux http://dowithlinux.wordpress.com http://dhastha.wordpress.com