On 16/02/2019 23:07, Didier Kryn wrote:
> Le 16/02/2019 à 23:42, Dr. Nikolaus Klepp a écrit :
>> So openssh is blocked by random, which by some unknown reason takes ~
>> 30 seconds to start on 4.19 (in contrast to ~ 1 second o 4.9)
>
>     I've read things about that in other lists. There's a new
> requirement to have a big enough amount of random numbers (they call
> this entropy, as an extension of the physical concept to computing),
> in some new random generator. openssh requires that to be able to
> start securely. The only workaround, IMHO is to find a way to not wait
> until openssh is ready to continue the start up.
>
>         Didier
>
>
If you install 'haveged' package /dev/random and /dev/urandom should (a)
be better quality and (b) programs that need chunks of random data such
as SSL on start-up should come up more quickly, i.e. not block waiting.

Mike




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