The default values for the site parameters are coded in the server FTP.DATA. These SITE defaults apply to all login sessions to the server. You can customize settings for a specific user or group of users by creating an FTPS.RC configuration data set containing FTP commands specific to that login session. This file may contain a series of CWD and SITE commands. See z/OS Communications Server: IP User's Guide and Commands for information about these commands.
The FTP server uses the following search order to find the MVS™ data set or z/OS® UNIX file: