If you administrating a small or large workstations running with Linux Desktops and want to disable the USB ports for security so that no one can copy the data via pen drive, try the following steps to disable the USB port(s).
Edit the grub.conf and add the following lines(you need to login as root).
- # vi /boot/grub/grub.conf
Then add the following lines on the right kernel version
kernel /vmlinuz<your-kernel-version> rhgb quiet nousb
Save and exit the file and reboot the system to disable the USB ports and the boot time.