locking usb

[sanoob.tv]

hai
i just installed ubuntu 10.10 and upgarding to 11,
in windows machine i locked my usb ports using registries so that no one steal data from my pc.
it was quiet simple,all we need was 2 register files to turn on and off usb write

is there a similar way to lock usb in ubuntu?????

 

[nims11]

Linux Disable USB Devices (Disable loading of USB Storage Driver)

 

[sanoob.tv]

# echo 'install usb-storage : ' >> /etc/modprobe.conf

ls /lib/modules/$(uname -r)/kernel/drivers/usb/storage/usb-storage.ko
# mv /lib/modules/$(uname -r)/kernel/drivers/usb/storage/usb-storage.ko /root

WHICH ONE OF THIS IS TO ENABLE AND WHICH TO DISABLE USB??