Helpful and a bit weird all at the same time.  Wouldn't it have been easier
to just fix the PRNG issue in the first place by creating a ssh_rand_helper
that used an assembler module to gather entropy.. than creating an option to
deal with the slow PRNG with OpenSSH?

Rob Schramm

On Thu, May 5, 2011 at 10:23 AM, Mullen, Patrick <[email protected]>wrote:

> 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
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions, send
> email to [email protected] with the message: GET IBM-MAIN INFO Search
> the archives at http://bama.ua.edu/archives/ibm-main.html
>
> ----------------------------------------------------------------------
> For IBM-MAIN subscribe / signoff / archive access instructions,
> send email to [email protected] with the message: GET IBM-MAIN INFO
> Search the archives at http://bama.ua.edu/archives/ibm-main.html
>



-- 
Rob Schramm
Senior Systems Engineer

w: 513.305.6224

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html

Reply via email to