VSFTPD

amigos tengo un lio... configure el vsftp en un Centos 4.6 aranca y todo lindo pero el rato de logearme desde
afuer me pide el user y pass le doy pero q no le reonoce y no me deja.. tengo shorewall y tengo habilitados los
puertos 20 y 21.. no se donde estoy fallando.. remito el vsftp conf.. y tengo los archivos
vsftpd.chroot_list (losusers q no estan permitidos a entrar) y el vsftpd.user_list (los q si pueden
entrar al ftp...
HELP MEEE
Marcelo 
# Allow anonymous FTP? (Beware - allowed by default if you comment this out).
anonymous_enable=NO
#
# Uncomment this to allow local users to log in.
local_enable=YES
#
# Uncomment this to enable any form of FTP write command.
write_enable=YES
#
# Default umask for local users is 077. You may wish to change this to 022,
# if your users expect that (022 is used by most other ftpd's)
local_umask=077
#
# Uncomment this to allow the anonymous FTP user to upload files. This only
# has an effect if the above global write enable is activated. Also, you will
# obviously need to create a directory writable by the FTP user.
#anon_upload_enable=YES
#
# Uncomment this if you want the anonymous FTP user to be able to create
# new directories.
#anon_mkdir_write_enable=YES
#
# Activate directory messages - messages given to remote users when they