ssh authentication error

[Jerrin]

Hi,

 On a mac system i generated the key using ssh-keygen -t dsa and copied
.ssh/id_dsa.pub to /home/user/.ssh/authorized_keys on a Freebsd server, but
it prompts for the password
 There's no passphrase for the key. Key generated from the linux or Freebsd
machine works fine on the server.
 it shows this message in the auth.log
 sshd[5752]: error: PAM: authentication error for username  from host

Thank you
Rihaz