Why can't non-anonymous users login using WU-FTP?
From: email@example.com (Shane Castle)
You must create a file named /etc/shells (this is the real /etc not a
subdirectory of your false root), that contains all the shells that
are defined on your system. Get the list from
/etc/security/login.cfg. Also, if having proper group authentication
is important to you, apply the following patch: