NoMachine NX on Ubuntu 12.10

Wed Apr 3 17:41:22 UTC 2013

On 04/03/2013 12:42 PM, Dave Woyciesjes wrote:
> On 04/03/2013 12:11 PM, Dave Woyciesjes wrote:
>> On 04/03/2013 10:41 AM, Dave Woyciesjes wrote:
>>> On 04/02/2013 11:25 PM, Keith wrote:
>>>> On 03/04/13 08:52, Dave Woyciesjes wrote:
>>>>> On 04/02/2013 05:30 PM, Keith wrote:
>>>>>> On 03/04/13 06:27, Dave Woyciesjes wrote:
>>>>>>>     I'm having a dickens of a time getting NoMachine NX Server
>>>>>>> working
>>>>>>> on my Ubuntu12.10 system. Will be using a Mac OSX 10.6.8 laptop with
>>>>>>> the NoMachine NX Client.
>>>>>>>     I created ssh keys on the Mac, exported to Ubuntu. Configured
>>>>>>> the
>>>>>>> OpenSSH as per
>>>>>>> https://help.ubuntu.com/community/SSH/OpenSSH/Configuring
>>>>>>>
>>>>>>> And trying to glean help from here:
>>>>>>> http://www.nomachine.com/documentation/html/admin-guide.html
>>>>>>>
>>>>>>> This is the error when I try to connect on the Mac:
>>>>>>>
>>>>>>> NX> 203 NXSSH running with pid: 23627
>>>>>>> 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: (server IP) on port: 22
>>>>>>> NX> 202 Authenticating user: nx
>>>>>>> NX> 208 Using auth method: publickey
>>>>>>> NX> 204 Authentication failed.
>>>>>>>
>>>>>>>
>>>>>>> Help!
>>>>>>>
>>>>>> Can you SSH from your MAC to the Ubuntu *without* using the NX
>>>>>> client?
>>>>>>
>>>>>> It does look like the authentication you have configured for SSH is
>>>>>> not
>>>>>> setup correctly. I recently tested NX from an Ubuntu to Ubuntu system
>>>>>> and it worked very well, and all I did from memory was setup SSH
>>>>>> server
>>>>>> on Ubuntu box I wanted to connect to copied the SSH key over from the
>>>>>> client.
>>>>>>
>>>>>> Cheers
>>>>>> Keith
>>>>>>
>>>>>>
>>>>>     Yeah, setup & tested the SSH first. First I was able to connect
>>>>> supplying the password; then I generated & copied the keys over, and
>>>>> turned off password auth in the SSH config. Still worked.
>>>>>     Looking at the NX output above, it says "Authenticating user: nx".
>>>>> but in the NX client setup, I typed in the Ubuntu username. What gives
>>>>> there?
>>>>>
>>>>
>>>> I just setup another test from my Ubuntu laptop to a test Ubuntu VM
>>>> laptop running 12.10 and vm 12.04.  Was able to connect no problem,
>>>> although I did forget and wondered why I started using XRDP instead,
>>>> NoMachine doesn't support Unity, so you will need to either setup Gnome
>>>> or Kubuntu etc. I think the next version of NX for Linux will support
>>>> Unity.
>>>
>>>      I have Gnome3/Shell installed, so the Unity issue shouldn't be a
>>> worry for me. I think.
>>>
>>>> Your problem though seems to be with  authentication of a nx user,
>>>> and I
>>>> remember something about this in the docs last time, just to be sure I
>>>> assume you are entering the username into the NXClient app on your mac
>>>> of a user on the Ubuntu machine? Otherwise take a look at this:
>>>> http://www.nomachine.com/ar/view.php?ar_id=AR10B00046
>>>
>>>      Hmmm, this looks very interesting. I'll have to give this a
>>> look-see. Thanks much.
>>
>>      No dice after going through what is mentioned here. Same error as
>> above.
>>      I didn't see anything, but do I need to create an nx user on the
>> Ubuntu side?
>>
>
>      Well, I just made some progress. I found this:
> http://alien.slackbook.org/dokuwiki/doku.php?id=slackware:nx
>      And wen through all. For item #3, my keys were different. Copied
> the key from Ubuntu to the Mac, and now I get the error:
> "DSA key is corrupted or has been protected with a passphrase"
> Same with NX Client in Win8. I'm guessing my copy & paste wasn't quite
> the right way?
>
	Yeah, replying to myself, but for the assistance of those who are 
following..

Found here:
http://www.pwrusr.com/system-administration/freenx-server-without-sshd-password-authentication
	I added the user nx to allowed users in SSH config. Got teh DSA key 
corrupted error.
	Went into the NX Client, reverted to default key. Now got auth failed 
for (username).
	Hmmm, so I drop in to SSH config, change PasswordAuthentication from No 
to Yes. Test, loogks promising, but I now get:

NX> 203 NXSSH running with pid: 25926
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: (IP address) on port: 22
NX> 202 Authenticating user: nx
NX> 208 Using auth method: publickey
HELLO NXSERVER - Version 3.5.0-11 - LFE
NX> 105 Hello NXCLIENT - Version 3.5.0
NX> 134 Accepted protocol: 3.5.0
NX> 105 Set shell_mode: shell
NX> 105 Set auth_mode: password
NX> 105 Login
NX> 101 User: (username)
NX> 102 Password: ********
NX> 103 Welcome to: (ubuntu) user: (username)
NX> 105 Listsession --user="dw49" --status="suspended\054running" 
--geometry="1680x1050x32+render" --type="unix-gnome"
NX> 127 Available sessions:

Display Type             Session ID                       Options  Depth 
Screen         Status      Session Name
------- ---------------- -------------------------------- -------- ----- 
-------------- ----------- ------------------------------

NX> 148 Server capacity: not reached for user: dw49
NX> 105 Start session with: --link="lan" --backingstore="1" 
--encryption="1" --cache="16M" --images="64M" --shmem="1" --shpix="1" 
--strict="0" --composite="1" --media="1" --mediahelper="esd" 
--session="Ubuntu64" --type="unix-gnome" --geometry="1680x939" 
--client="macosx" --keyboard="query" --screeninfo="1680x939x32+render"
NX> 595 ERROR: A fatal error occurred in NX Server.
NX> 595 ERROR: The exception id is: 247BEC02. To get detailed 
information about
NX> 595 ERROR: the error search for the string 247BEC02 in the system log
NX> 595 ERROR: file (usually '/var/log/messages').
NX> 500 ERROR: Last operation failed.
NX> 280 Exiting on signal: 15

Time to hit the search engines....

-- 
--- Dave Woyciesjes
--- ICQ# 905818
--- AIM - woyciesjes
--- CompTIA A+ Certified IT Tech - http://certification.comptia.org/
--- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/
             Registered Linux user number 464583

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