----> Testing your nxserver configuration ...
Warning: Invalid value "DEFAULT_X_SESSION=/etc/X11/xdm/Xsession"
         Users might not be able to request a default X session.
Warning: Invalid value "COMMAND_START_KDE=/usr/bin/dbus-launch --sh-syntax --exit-with-session startkde"
         Users will not be able to request a KDE session.
Warning: Invalid value "COMMAND_START_GNOME=/usr/bin/dbus-launch --sh-syntax --exit-with-session gnome-session"
         Users will not be able to request a Gnome session.
Warning: Invalid value "COMMAND_START_CDE=cdwm"
         Users will not be able to request a CDE session.
Warning: Invalid value "COMMAND_SMBMOUNT=smbmount". You'll not be able to use SAMBA. 
Warning: Invalid value "COMMAND_SMBUMOUNT=smbumount". You'll not be able to use SAMBA.

  Warnings occured during config check.
  To enable these features please correct the configuration file.

<---- done

----> Testing your nxserver connection ...
The authenticity of host '127.0.0.1 (127.0.0.1)' can't be established.
RSA key fingerprint is f5:90:87:94:f4:4e:fe:29:66:7d:09:d6:fc:78:dc:6f.
Are you sure you want to continue connecting (yes/no)? Fatal error: Could not connect to NX Server.

Please check your ssh setup:

        - Make sure "nx" is one of the AllowUsers in sshd_config.
        - Make sure your sshd allows public key authentication.
        - Make sure your sshd is really running on port 22.
        - Make sure your sshd_config AuthorizedKeysFile in sshd_config is set to authorized_keys2.
root@ncs0006:~# Host key verification failed.