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Securing /dev/shm

To secure /dev/shm look for the mount line for /dev/shm in /etc/fstab and change it to the following:

none /dev/shm tmpfs noexec,nosuid 0 0

Umount and remount /dev/shm for the changes to take effect.

-----command-----

#umount /dev/shm

#mount /dev/shm