Using the Random Number Generator daemon to increase system entropy
Updated -
This article only applies to RHEL7.
Don't follow the instructions on RHEL8 and later.
On RHEL8 and later, assuming FIPS is disabled, just install rng-tools package and enable the rngd.service unit.
Note that on RHEL9, the entropy is capped to 256, as per Entropy pool size on RHEL 9 do...
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