Why does entropy_avail decreases every 5 minute without anything accessing /dev/random?
Issue
- While no processes are accessing
/dev/random, we see that/proc/sys/kernel/random/entropy_availdecreases. Why is that?
$ while true; do cat /proc/sys/kernel/random/entropy_avail;sleep 1;done
3112
3113
3083
3083
Environment
- Red Hat Enterprise Linux 7.
- Red Hat Enterprise Linux 8.
- Red Hat Enterprise Linux 9.
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