-@item --passive-ftp
-Use the @dfn{passive} @sc{ftp} retrieval scheme, in which the client
-initiates the data connection. This is sometimes required for @sc{ftp}
-to work behind firewalls.
+@item --no-passive-ftp
+Disable the use of the @dfn{passive} FTP transfer mode. Passive FTP
+mandates that the client connect to the server to establish the data
+connection rather than the other way around.
+
+If the machine is connected to the Internet directly, both passive and
+active FTP should work equally well. Behind most firewall and NAT
+configurations passive FTP has a better chance of working. However,
+in some rare firewall configurations, active FTP actually works when
+passive FTP doesn't. If you suspect this to be the case, use this
+option, or set @code{passive_ftp=off} in your init file.