|There are a couple forms of secure FTP on the mainframe: FTPS and SFTP. One involves setting up RACF (or equivalant) to work with certificates and keyrings, the other involves using SSL. A couple of books to get you started: Chapter 15 of the Communications Server for z/OS V1R9 TCP/IP Implementation Volume 4: Security and Policy-Based Networking Redbook and Chapter 12 of the z/OS V1R12.0 Comm Svr: IP Configuration Guide. |
This is of course assuming you are working with z/OS...
Edit: Another assumption is that you are a Sysprog looking to implement secure FTP. If you're a developer that would like to utilize secure FTP, check with your Tech Support/System Programming staff to see if a secure FTP PROC is already available, or ask for one to be created. If you are trying to connect to a mainframe from a distributed platform (Windows, *nix, other), you may need a secure client.
Hmm... With so many ifs and assumptions, could you provide a bit more detail? ;-)
When your only tool is a hammer, every problem looks like a nail.