shm-file
On some older systems that do not support System V IPC, a shared
file is used to communicate. This is file is created in /tmp,
unless you need to put it somewhere else; it can be deleted after the server
starts, because the main process keeps it open until it exits.
Examples:
shm-file=/tmp/ncftpd.shm
#shm-file= (commented out)
Recommendation:
#shm-file= (commented out)
