Level 1 - Server Level 1 - Workstation
The nodev
mount option specifies that the filesystem cannot contain special devices.
Since the /run/shm
filesystem is not intended to support devices, set this option to ensure that users cannot attempt to create special devices in /dev/shm
partitions.
Run the following command and verify that the nodev
option is set on /dev/shm
.
# mount | grep /dev/shm tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,noexec,relatime)
Edit the /etc/fstab
file and add nodev
to the fourth field (mounting options) for the /dev/shm
partition. See the fstab(5)
manual page for more information.
Run the following command to remount /dev/shm
:
# mount -o remount,nodev /dev/shm