can't connect to nxserver, authentication failed

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http://www.linuxquestions.org – I'm following the guide here: http://wiki.centos.org/HowTos/FreeNX Specifically there is a part that says: Quote: If your machine is connected to the Internet, you'll probably want to disallow ssh password authentication (which is advised but not mandatory). Edit the /etc/ssh/sshd_config file and change/add the following lines: PasswordAuthentication no AllowUsers nx Don't forget to restart the sshd daemon after making that change: service sshd restart (HowTos)