ftp:// error

[Marten Lehmann]

Hello,

from a server where neither a rsync daemon nor ssh is running I'm trying 
to backup the whole data with ftp. So my idea was to call rsync like this:

rsync -v -a 'ftp://1.2.3.4/' my_folder

But this gives me:

ftp: unknown host
ftp: unknown host
ftp: Unknown host
rsync: connection unexpectedly closed (0 bytes read so far)
rsync error: error in rsync protocol data stream (code 12) at io.c(165)

Doesn't rsync handle ftp://?

Regards
Marten