[FreeNX-kNX] Installing Freenx

Mon Feb 18 17:01:16 UTC 2008

On Monday 18 February 2008, Gregory Carter wrote:
> Jim,
>
>   How long must you leave the connection going before the watchdog
> signal kicks in?   I left the connection up for a good 10 minutes and it
> did not report any errors in the nxserver.log, or the client
> session/SomeHost logs in the account .nx cookie directories for the
> session.

~2minutes for me. The problem is nxagent segfaulting so if you're not seeing 
this in the logs then you have a different problem. Just seen your other post 
with attached logs so more in that thread.

>   I tried running the nxserver in a 32 bit session using linux32 but
> that had no effect either.   So I am wondering if this might be a ssh
> issue?  I think I will try running sshd in a 32bit  environment on the
> server and see what happens.
>
> I am curious: What exactly is the know problem you cite below that has
> been fixed in the version 3.0 libraries?  Is there a link I can read
> about it?

Search the list archives. Fabian posted a patch in Feb. 07 that got nxagent to 
compile and work for him. Some time later that patch was used in the fedora 
nx package. I posted about a problem I had in September 07 in a thread 
called 'Odd nxagent segfault issue' where someone suggested it was an issue 
in the backingstore code. Since then a few others have reported similar 
problems, at least one using a 32 bit client. I don't recall a fix being made 
for 2.1 series libs, but the 3.0.0 release from nomachine seems to have fixed 
64 bit support.

> -gc
>
> Alastair Johnson wrote:
> > Gregory,
> >
> > I just checked the versions on my FC8 64 bit box and it's showing nx
> > version 2.1.0-22.fc7 which explains the problem. Apologies to whoever it
> > was I questioned about this version a couple of weeks ago. This version
> > contains a patch to support 64 bit, but the patch is only partially
> > successful. It works perfectly for some people. Others (like me) have
> > reported failures when connecting from 64 bit clients but not 32 bit
> > clients, or vice versa, or success with windows clients but not linux
> > clients. The problem is fixed in the 3.0 series libraries, but there
> > isn't an FC8 binary of these yet AFAIK. With this bug the client will get
> > through authentication and session setup, but sits for a long time at
> > 'Established the display connection' or similar before failing. If you
> > retry this a few times the failure will become instant. If you hit the
> > 'Details' button the end of the log will look something like:
> >
> > Session: Session started at 'Mon Feb 18 11:20:08 2008'.
> > Info: Established X server connection.
> > Info: Using shared memory parameters 1/2048K.
> > Session: Terminating session at 'Mon Feb 18 11:21:08 2008'.
> > Info: Waiting the cleanup timeout to complete.
> > Warning: Parent process appears to be dead. Exiting watchdog.
> >
> > Is this the sort of thing you're seeing?
> >
> > Jim,
> >
> > it sounds like your problem is ssh authentication. To check that ssh is
> > correctly configured you should copy /etc/nxserver/client.id_dsa.key to
> > the client machine, making sure that it's readable only by the user. you
> > should now be able to connect to the server as user nx without needing a
> > password: # ssh -i /wherever/you/put/your/client.id_dsa.key
> > nx at your.server HELLO NXSERVER - Version 2.1.0-71 OS (GPL)
> > 	NX> 105
> > If this doesn't work you should look at the server's ssh logs to find out
> > why.
> >
> > On Sunday 17 February 2008, Gregory Carter wrote:
> >> Yeah, have the same problem with a 64 bit install of Fedora.
> >>
> >> I got the exact same installation working on a 32 bit system, works
> >> fine.
> >>
> >> Something isn't playing cricket!
> >>
> >> -gc
> >>
> >> Jim wrote:
> >>> Alastair Johnson wrote:
> >>>> On Saturday 09 February 2008, Jim wrote:
> >>>>> Alastair Johnson wrote:
> >>>>>> On Saturday 09 February 2008, Jim wrote:
> >>>>>>> Yong Liu wrote:
> >>>>>>>> Ubuntu package: freenx
> >>>>>>>>
> >>>>>>>> http://www.datakeylive.com/ubuntu/dists/gutsy/
> >>>>>>>>
> >>>>>>>> Yong
> >>>>>>>>
> >>>>>>>> -----Original Message-----
> >>>>>>>> From: Jim [mailto:mickeyboa at sbcglobal.net]
> >>>>>>>> Sent: Saturday, February 09, 2008 2:49 AM
> >>>>>>>> To: nx
> >>>>>>>> Subject: [FreeNX-kNX] Installing Freenx
> >>>>>>>>
> >>>>>>>> What packages do I install for freenx, for the node, server ,
> >>>>>>>> client ?
> >>>>>>>
> >>>>>>> I guess it would have been smart to let you know that I was going
> >>>>>>> to install In Fedora 8.
> >>>>>>> I know where the rpm's are but I don't know which ones to install
> >>>>>>> for client, node, server
> >>>>>>
> >>>>>> In that case all you need to do is:
> >>>>>> 	yum install freenx
> >>>>>>
> >>>>>> When you set up the client you will need to set the key to match 
> >>>>>> the server's /etc/nxserver/client.id_dsa.key since this is different
> >>>>>> from the nomachine key.
> >>>>>
> >>>>> Let me get my thinking straight,
> >>>>> I take the key from server /etc/nxserver/client.id_dsa.key and copy
> >>>>> it to the client box, what's the path on the client box
> >>>>> that the key goes in ?
> >>>>
> >>>> It goes in the configuration GUI of the client. Rick Stout's page will
> >>>> walk you through with screenshots. It may seem old (last update was
> >>>> for FC5) but the GUI configuration has barely changed since then.
> >>>>
> >>>> http://fedoranews.org/contributors/rick_stout/freenx/
> >>>>
> >>>> A last point which may seem obvious, but from time to time people miss
> >>>> it: you'll need KDE installed to start a KDE session, and Gnome to
> >>>> start a Gnome session.
> >>>>
> >>>> If you still have problems then check the FAQ link in the footer for
> >>>> instructions on enabling logging on the server.
> >>>> ________________________________________________________________
> >>>>      Were you helped on this list with your FreeNX problem?
> >>>>     Then please write up the solution in the FreeNX Wiki/FAQ:
> >>>>   http://openfacts.berlios.de/index-en.phtml?title=FreeNX_FAQ
> >>>>          Don't forget to check the NX Knowledge Base:
> >>>>                  http://www.nomachine.com/kb/
> >>>>
> >>>> ________________________________________________________________
> >>>>        FreeNX-kNX mailing list --- FreeNX-kNX at kde.org
> >>>>       https://mail.kde.org/mailman/listinfo/freenx-knx
> >>>> ________________________________________________________________
> >>>
> >>> Trying to login the server from client and i'm getting error message:
> >>>
> >>> "The NX service is not available or the NX access was disabled on host
> >>> 76.280.250.93."
> >>>
> >>> I can do a ssh -x bob at 76.280.250.93 and connect to server from client.
> >>>
> >>> freenx and nx is installed on FC8-x86_64 server and FC8-i386 client 
> >>> has nxclient-3.1.0-2 installed and
> >>>
> >>> /nxserver/client.id_dsa_key is copyied into nxclient-3.1.0-2 on client
> >>> box.
> >>>
> >>> What am I not doing right ??