Hi all, i am developing a linux program as part of my Uni project, the program involves messing around with TCP packets an integrating with netfilter/iptables in the 2.4 kernel. I need to force a user to install this program only as root, this is easy with respect to the kernel module i am developing as once the patch is applied to the kernel source the module can only be compiled and installed by root, as part of a kernel build (i think). However i also have a userspace program that i want to only be available for use by a root user, can i limit those that compile and execute the program to only a root user? Even though i am doing this project i am very much a newbie on many aspects of linux, if you can help me with this point i would be gratefull

many thanks
david crossland

You could examine the UID of the user that executes the script. Obviously if you are providing the source then it could be removed.