5733SC1; ability to sftp to a Unix box

IBM iSeries
I have a need to get information from an i5 to a Unix box. And it has to be unattended. Catch; Unix is allowing only SFTP (not i5's definition of secure ftp, the Unix definition. Port 22). So, FTP isn't an option. In all IBM & everyone else's 'documentation' about all can find out is that need 5722SS1-33 & 5733SC1. Does anybody know how to setup, configure and run this so-called sftp process from an i5 to a Unix box? Has anybody actually done this? Who has it working in a production environment? Step-by-step instructions are needed for this monster.

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You want to look in the InfoCentre for 5.3. Within the Networking -> TCP/IP section you will find setting up secure FTP (a PDF is available for downloading/printing). Cheers.


Note that sftp is <b>not</b> “FTP” secure or otherwise. It is an unrelated protocol that just <i>happens</i> to have the letters ‘ftp’ and the words ‘File Transfer Protocol’ as part of its name. It is SSH File Transfer Protocol (sometimes called Secure File Transfer Protocol or SFTP). It is indeed <b>a</b> “file transfer protocol” — it just isn’t a FTP protocol. (Nor is it SFTP, which is ‘Simple File Transfer Protocol’ and which doesn’t help clear things up at all.)

FTP on UNIX uses the exact same ports as FTP on i5. Port 22 is not a FTP port on UNIX nor on i5. Port 22 is used by sftp — on both UNIX and i5.

Secure FTP (where the “FTP” is really FTP) is FTP/S. Now is it clear? Whew…

The very unfortunate use of the same words and abbreviations causes unending confusion.

See <a href=”http://www-01.ibm.com/support/docview.wss?uid=nas1fa8ba0d9e5c4cacb8625738c0049ae62″>Ordering 5733SC1- IBM Portable Utilities for i5/OS</a> – for a start on some recent (2009) details about obtaining it. Until you obtain it, there’s not much to say about installing it.


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  • wpoulin
    Portable Utilities is shipped with V5R4 and V6R1. It is not a bear. Set it up in less than a week or spare time and have an automated daily transfer happening from an i5 to a Unix box. See http://www.scottklement.com and the Redpaper "Securing Communications with OpenSSH on IBM i5/OS". Hope this helps, Bill Poulin
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