ftp-proxy(8) on FreeBSD
The text ef9fe47a5c29, as FreeBSD 12.1-RELEASE shipped it.
Internet File Transfer Protocol proxy daemon
Flags it lists
-
-6 -
-A -
-D -
-P -
-R -
-T -
-a -
-b -
-d -
-m -
-p -
-q -
-r -
-t -
-v