ftpd(3tcl) on Linux
The text 8e40bae7cbcf, as Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it.
Tcl FTP server implementation
Flags it lists
-
-authFileCmd -
-authIpCmd -
-authUsrCmd -
-closeCmd -
-fsCmd -
-logCmd -
-xferDoneCmd