Hi Mary, and welcome to the gottahaveitnow club :-)

You have two main paths to take: SSH (secure shell) or TLS (transport
layer security). 

TLS is a superset/replacement of SSL (secure sockets). 

Each has advantages/disadvantages. SSH is very popular with the *nix,
tinkertoy, and audit crowds, but a huge PITA for the Big Iron. SSH, for
example, can only send/receive HFS/zFS files. That means you have to
copy to/from your ZFS/HFS file system to real world. And ZFS/HFS files
systems tend to be LPAR specific (not shared). Worse, SSH sessions use
ZFS/HFS files, which tends to constrain to a single LPAR. SSH does not
come with z/os, but is 'openware' downloadable from IBM.  

TLS proper is nearly trivial to set up and use, but certificate
administration is a large can of nasty worms with bad attitudes and hard
to treat diseases :-) Worse, TLS is free on z/os, but often requires
expensive software on the remote hosts. 

I personally like TLS because the same base mechanisms apply to all of
web stuff, FTP, and telnet (TN3270). More, certificated based strategies
appear to be a 'best practice'. But I like the minimal administration of
SSH.   

We are driven by customer requests/demands, so we use both. 

HTH



  

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On
Behalf Of Yukus, Mary J CIV USMEPCOM
Sent: Wednesday, June 18, 2008 8:37 AM
To: IBM-MAIN@BAMA.UA.EDU
Subject: sFTP from/to z/OS

Hi Everyone,
We have the need to start using sFTP on z/OS (via OMVS?) with a very
short
deadline (it always seems to work that way :-) ).  We have had FTP
working
for years.  Can anyone give me some direction/advice/good books on how
to get
s/FTP working?  I'm not the one that configured the FTP, just inherited
it.
Thanks,
Mary :-)

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