Problemas con Proftpd - sftp

[chidomen]

Hola a todos, tengo un problema que no encuentro como resolverlo, espero que me puedan ayudar, instale proftd+mysql y lo quiero configurar con sftp.

Así tengo confiigurado proftpd.conf

######### SFTP
SFTPEngine on # use SFTP instead of FTP
Port 2222
SFTPHostKey /root/.ssh/id_rsa
SFTPHostKey /root/.ssh/id_dsa

DefaultRoot ~ # Jail the FTP users to within their homedir
SQLAuthTypes Plaintext Crypt
SQLAuthenticate users* groups*

SQLBackend mysql


SQLConnectInfo proftp@localhost root pass
SQLUserInfo ftpuser userid passwd uid gid homedir shell
SQLGroupInfo ftpgroup groupname gid members
SQLMinID 500
CreateHome on

SQLLog PASS updatecount
SQLNamedQuery updatecount UPDATE "count=count+1, accessed=now() WHERE userid='%u'" ftpuser
SQLLog STOR,DELE modified
SQLNamedQuery modified UPDATE "modified=now() WHERE userid='%u'" ftpuser

RootLogin off
RequireValidShell off

# IMPORTANT: required for bandwidth accounting
TransferLog /var/log/proftpd/xferlog
SystemLog /var/log/proftpd/proftpd.log
SFTPLog /var/log/proftpd/sftp.log


Al hacer una prueba me sale un error y este es lo que viene en el log

ct 01 18:02:38 mod_sftp/0.9.7[6006]: using '/root/.ssh/id_rsa' as RSA hostkey
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: using '/root/.ssh/id_dsa' as DSA hostkey
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: received client version 'SSH-2.0-PuTTY_Local:_Jan__8_2012_14:40:35'
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: handling connection from SSH2 client 'PuTTY_Local:_Jan__8_2012_14:40:35'
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session key exchange: diffie-hellman-group-exchange-sha256
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session server hostkey: ssh-rsa
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session client-to-server encryption: aes256-ctr
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session server-to-client encryption: aes256-ctr
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session client-to-server MAC: hmac-sha1
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session server-to-client MAC: hmac-sha1
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session client-to-server compression: none
Oct 01 18:02:38 mod_sftp/0.9.7[6006]: + Session server-to-client compression: none
Oct 01 18:02:39 mod_sftp/0.9.7[6006]: sending acceptable userauth methods: keyboard-interactive,password
Oct 01 18:02:41 mod_sftp/0.9.7[6006]: sending userauth failure; remaining userauth methods: password
Oct 01 18:02:41 mod_sftp/0.9.7[6006]: client sent SSH_MSG_IGNORE message (19 bytes)
Oct 01 18:02:42 mod_sftp/0.9.7[6006]: error reading from client (fd 0): Connection reset by peer
Oct 01 18:02:42 mod_sftp/0.9.7[6006]: disconnecting client (Connection reset by peer)


Que estoy haciendo mal?

Saludos a todos!