The
save-entropy
command is used to save entropy data from
/dev/random
to files in a specified output location.
The files saved are used at startup to provide additional entropy for
/dev/random.
The output file will be different in every invocation until the maximum number
of different files is reached.
(See
entropy_save_num
for details).
By default this script is invoked via
cron(8)
every eleven minutes approximately.
This command does nothing if executed inside a
jail(8).
Three variables in
/etc/rc.conf
regulate the behavior of the script:
|
| entropy_dir
|
| |
Specify the directory for saved entropy files.
Defaults to
/var/db/entropy.
If set to "NO" it disables caching entropy via
cron(8).
This setting is shared with
/etc/rc.d/random.
|
| entropy_save_sz
|
| |
Size of the entropy cache files.
Defaults to 4096.
|
| entropy_save_num
|
| |
Number of entropy cache files to save.
Defaults to 8.
|
|
