What’s SAF? (I’m not a z/OS guy).  I’ll see what happens if I omit the
userid/password parm’s from the job statement. Thanks for the suggestion.



On Fri, Oct 31, 2025 at 09:47 Seymour J Metz <[email protected]> wrote:

> How does the FTP server use SAF? What happens if you omit the userid and
> password? If the copy to the internal reader uses n ACEE for your userid
> thn everything might work.
>
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3
> עַם יִשְׂרָאֵל חַי
> נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
>
>
>
>
> ________________________________________
> From: IBM Mainframe Discussion List <[email protected]> on behalf
> of Donald Russell <[email protected]>
> Sent: Friday, October 31, 2025 12:09 PM
> To: [email protected] <[email protected]>
> Subject: OTP authentication
>
>
> External Message: Use Caution
>
>
> We have systems external to z/OS that submit jobs to JES over encrypted ftp
> sessions. We “site filetype=jes” then “put” a jcl file.
>
> Unfortunately the JCL JOB statement uses the same USERID= and PASSWORD=
> values as were used to authenticate for the ftp connection.  That all
> worked perfectly until password/phrases were replaced with OTP.  One-Time
> Password.
>
> Well, the one time use gets into ftp, now the submitted job fails because
> the password check fails.
>
> I’m not on the z/OS side of things, but I want to help them by providing a
> possible solution.  I’m thinking a user exit could vet the JCL submitted
> through site filetype=jes to skip the password check when the job is
> submitted that way. The exit should either (en)force the JOB USERID= value
> to match the ftp id, or perhaps recognize a special userid id of FTPJES
> that the user exit would change to the ftp user logged in and accept the
> job without further password checks.
>
> Has anybody else run into this problem, and what did you do to solve it?
>
> Cheers,
> Don
>
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