Using the hardware is optional, there's a software implementation too.
Some smaller lpars may not have enough cpu share to drive the software
process though in Ported Tools 1.1, I know that this was the case with
some of our sandbox lpars that experienced chronic timeouts. IBM
remedied this in Ported Tools 1.2 with the new variable
_ZOS_SSH_PRNG_CMDS_TIMEOUT.


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On
Behalf Of Paul Gilmartin
Sent: May 5, 2011 8:55 AM
To: [email protected]
Subject: Re: "Under z/OS Unix"


On Thu, 5 May 2011 08:55:15 -0400, Rob Schramm wrote:

>I might understand (due to "I don't want to set it up") not setting up 
>SSH.  But are there any installations not running TCP/IP these days?
>
I should add we have SSH installed but not successfully configured on
some of our systems because we lack the (separately priced?  Am I
correct?) hardware feature required for /dev/random.  The mind boggles;
z/OS /dev/random uses a PRNG, and for that specialized hardware is
necessary?

-- gil

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