What type of attacks are there that do not use open TCP or open UDP ports? Is it safe to assume that no open ports means no remote access? (Excluding the possibility that there is a badware already ...
On Unix based systems, I'm often prompted to enter my password before installing or running a program. Why does this protect me? If I'm running a kiosk, I understand that a password might prevent ...
What is your default umask set to? Did you run into any problem setting a stricter default umask?
If I have a user on a unix system where Im allowed to create new files, what prevents me from downloading an executable file onto that system which is already SUID'ed to root on a different system? ...