During server initialization, the server attempted to open STDOUT and STDERR to the /dev/null character special file. It was unable to do so, and the server is not able to perform the LIST or NLST subcommand for z/OS® UNIX files.
The command is rejected. FTP continues.
Contact the system programmer.
Error Message EZYFT48E logged during server initialization will contain the reason for the /dev/null failure. Correct this error and restart the FTP server.