[FreeNX-kNX] Port 5000, FreeNX vs VirtualBox (SOLVED)

[Verner Kjærsgaard]

Terje Andersen skrev:
> On Sat, 03 Jan 2009 23:01:13 +0100
> Verner Kjærsgaard <vk at os-academy.dk> wrote:
> 
>> Hi list,
>>
>> On SuSE11 running FreeNX and SUN's VirtualBox, I have this scenario...
>> FreeNX server and Virtual box bothrunning. VirBox started, no guests 
>> running.
>>
>> I can connect to the host box using a NoMachine client.
>> If I do so and start a virtual machine, all is good.
>>
>> BUT if I start a virtual machine (guest) FIRST and THEN try to connect 
>> to the host (not to the guest) using a NoMachine client, I get:
>>
>> Error from nxserver.log:
>> Error: Call to bind failed for TCP port 5000. Error is 98 'Address 
>> already in use'.
>>
>> Output on the host from #netstat -apn | grep -i listen:
>> tcp        0      0 0.0.0.0:5000            0.0.0.0:* 
>> LISTEN      4088/VBoxHeadless
>>
>> As can be seen there is a conflict between the two systems, both 
>> fighting for port 5000. Now the odd thing is, if I (as mentioned) start 
>> the NX connection FIRST,then things work (for that session).
>>
>> Can I make NX use another port, as I don't seem to be able to have 
>> VirBox use another port?
>>
>>
> I don't remember the portnumber exactly, but as grep of the nxserver script reveals:
> 
>  $ cat /usr/bin/nxserver | grep 4000
> 	let PROXY_DISPLAY=$SESS_DISPLAY+4000
> 
> If I remember correctly, you should just change the display nr in node.conf to something like:
> 
> DISPLAY_BASE=2000
> 
> which would change the port number 5000 to 6000. I might be wrong here (late in the evening :p), but worth a try.
> 
> Please add this to the FreeNX Wiki (see bottom of this mail) if it works, or other solution, so other running VirtualBox might find this information easy.
> 
> Regards,
> Terje
> 
> ________________________________________________________________
>      Were you helped on this list with your FreeNX problem?
>     Then please write up the solution in the FreeNX Wiki/FAQ:
> 
> http://openfacts2.berlios.de/wikien/index.php/BerliosProject:FreeNX_-_FAQ
>   
>          Don't forget to check the NX Knowledge Base:
>                  http://www.nomachine.com/kb/ 
> 
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I just changed DISPLAY_BASE=1100 in /etc/nxserver/node.conf and 
restarted the FreeNX server. Bingo! No clash anymore.

Thanks A LOT!

And now the wiki...

-- 
------------------------------
Med venlig hilsen/Best regards
Verner Kjærsgaard
Open Source Academy
+45 56964223

Novell Certified Linux
Professional 10035701
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