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XCCDF
Guide to the Secure Configuration of Ubuntu 16.04
System Settings
Protect Random-Number Entropy Pool
Ensure Solid State Drives Do Not Contribute To Random-Number Entropy Pool
Ensure Solid State Drives Do Not Contribute To Random-Number Entropy Pool
An XCCDF Rule
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Ensure Solid State Drives Do Not Contribute To Random-Number Entropy Pool
Medium Severity
For each solid-state drive on the system, run:
# echo 0 > /sys/block/DRIVE/queue/add_random