> > I have a anonymous FTP and I know I can limit transfer rates, number of
> > connections by group, but is there a way to stop people from making
> > concurrent connections from the same IP?
>
> As far as I know, this can't be done with NetBSD's ftpd... ProFTPD
> <http://www.proftpd.org/> will let you limit the number of connections
> per IP though. And yeah, it's really lame and selfish when people open
> a flood of connections to try to get more than their fair share of the
> bandwidth :)

anyway - limiting connections from one IP is bad in case of multiused
hosts.