I installed ubuntu 12.10 64 bit version in my system. I want to disable all the usb ports. Except usb keyboard and mouse. I tried to add a line blacklist usb_storage in the /etc/modprobe.d/blacklist.conf and run the command sudo modprobe usb_storage. Reboot the system. But still the usb port is detected. What is the problem?
Anyone can help me to find the solution?