[FreeNX-kNX] FreeNX CentOS Permission denied (publickey, gssapi-keyex, gssapi-with-mic)

[OwN-3m-All]

Hi All,

I've run into a wall after installing and configuring FreeNX on CentOS 6.4
64-bit.  Whenever I try to login using a NoMachine client, I get this error
message:
*
NX> 203 NXSSH running with pid: 7176
NX> 285 Enabling check on switch command
NX> 285 Enabling skip of SSH config files
NX> 285 Setting the preferred NX options
NX> 200 Connected to address: 192.168.1.26 on port: 45559
NX> 202 Authenticating user: nx
NX> 208 Using auth method: publickey
HELLO NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: not detected)
NX> 105 hello NXCLIENT - Version 3.2.0
NX> 134 Accepted protocol: 3.2.0
NX> 105 SET SHELL_MODE SHELL
NX> 105 SET AUTH_MODE PASSWORD
NX> 105 login
NX> 101 User: user
NX> 102 Password:
NX> 103 Welcome to: localhost.localdomain user: user
NX> 105 listsession --user="user" --status="suspended,running"
--geometry="1920x1200x32+render" --type="unix-gnome"
NX> 127 Sessions list of user 'user' for reconnect:

Display Type             Session ID                       Services Dept
Screensize     Status        Session
Name                                                 Username
------- ---------------- -------------------------------- -------- ----
-------------- -------------
------------------------------------------------------------
--------------------------------


NX> 148 Server capacity: not reached for user: user
NX> 105 startsession  --link="adsl" --backingstore="1" --encryption="1"
--cache="16M" --images="64M" --shmem="1" --shpix="1" --strict="0"
--composite="1" --media="0" --session="vps" --type="unix-gnome"
--geometry="1914x1138" --client="winnt" --keyboard="pc102/en_US"
--screeninfo="1914x1138x32+render"

Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
NX> 280 Exiting on signal: 15

*The client itself shows "Downloading the session information" and then
states "The NX service is not available or the NX access was disabled on
host <IP>"

I am able to ssh into the server just fine through a normal terminal when
using my key.  Does anyone have any idea why the session will not start
up?  I have verified permissions on the authorized_keys2 files and made
sure the public key information was added to this file in both
/var/lib/nxserver/home/.ssh and ~/.ssh

Service freenx-server status shows NXServer is running.

Please help.
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