2013 Jan. I find that ucoz which hosts RHaworth.me is applying a very specific block:
it refuses to return any results for ftp_nlist or ftp_rawlist if the request is coming
from the IP address of RHaworth.net.
But it still allows an mkdir command from that address!
This block is presumably because rwhgal1.php (in oph_db.php) was
issuing an nlist request every time it was entered.