in production with netbsd 8/9
pkg_add -v rsync
ln -s /usr/pkg/etc/rsync/rsyncd.conf
vi /usr/pkg/etc/rsync/rsyncd.conf
uid = ftp 
[NetBSD]
    path = /tftpboot/pub/NetBSD 
    comment = NetBSD ftp area
    read only = yes
    transfer logging = no
cp /usr/pkg/share/examples/rc.d/rsyncd /etc/rc.d/ echo rsyncd=yes >> /etc/rc.conf /etc/rc.d/rsyncd start