An administrator notices the following file in the Linux server’s /tmp directory.
-rwsr-xr-x. 4 root root 234223 Jun 6 22:52 bash*
Which of the following should be done to prevent further attacks of this nature?
A . Never mount the /tmp directory over NFS
B . Stop the rpcidmapd service from running
C . Mount all tmp directories nosuid, noexec
D . Restrict access to the /tmp directory
Answer: C