On Thu, Sep 15, 2005 at 06:21:41AM -0400, der Mouse wrote:
...
> 
> This works fine with our ftpd, of course, and RFC 2428 contains
> language that seems to imply it's not incorrect behaviour (that the
> server is required to already be listening by the time the response is
> sent).  However, it breaks with the FTP daemon on
> download.fedora.redhat.com (or at least one of them - that name has
> four addresses) and possibly others - the symptom is that I can't
> download with "ftp download.fedora.redhat.com:/pub/....", getting "550
> Permission denied." and then a lockup.
> 
...

I'm guessing that they are using vsftpd (at least I believe that the
vsftpd documentation claims use by RedHat).  You may want to take
a look at the vsftpd code.  It is in pkgsrc.

---
Brian