z/os FTP client does not support self signed certs. The z/os FTP server doesn't 
seem to care if you are not using client authentication. 

The server parms are different from the client parms. Her are some working 
client parms (via FTPDATA dd statement):

CLIENTERRCODES TRUE           
 SECUREIMPLICITZOS FALSE       
 TLSPORT 990                   
 KEYRING THE_SUBMITTING_USER_PRIVATE_KEYRING           
 SECURE_FTP REQUIRED           
 SECURE_MECHANISM  TLS         
 FWFRIENDLY  TRUE              

I found the server parms TCPPARMS(FTPSDATA). Look for 'Security Options'. Some 
key ones:

EXTENSIONS        AUTH_TLS  
SECURE_FTP        ALLOWED  
KEYRING     FTPSERVERKEYRING    

TLSRFCLEVEL       DRAFT  (May be required depending the client). 


Note: The minimal TLS session is the client speaks first. The server offers the 
certificate and the client accepts or refuses.  
 

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of 
Ron Wells
Sent: Wednesday, April 29, 2009 6:30 AM
To: [email protected]
Subject: FTP-TLS/SSL

Does TLS / SSL need a self signed cert. or is that optional..
if so or others wise what are the minimum parms in ftpdata that need to be 
set ??
examples would be helpful ... Thanks

 
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