[winswitch] can't connect with windows 7 client

[Thomas Esposito]

On Sun, Oct 2, 2016 at 6:19 AM, Antoine Martin <antoine at nagafix.co.uk>
wrote:

> >     > Server unexpectedly closed network connection.
> >     >
> >     > If I run Xpra_cmd.exe from a command line terminal, I get the
> following
> >     > output when attempting to connect:
> >     Please always provide the exact command line that you used (minus any
> >     passwords and IP addresses, etc), ie:
> >     Xpra_cmd attach ssh/username:password at host:22/100
> >
> > For the Windows client, I am literally just running that command (i.e.
> > no args), and then starting up the session with the GUI.
> You should always try the command line version when reporting bugs, as
> it can be easily cut&pasted and it is much easier to spot obvious problems.
> (snip)
> >     > Any ideas what might be the problem?
> >     The run-xpra script which is executed via ssh may not be able to
> >     correctly setup the environment and therefore fails to connect to
> your
> >     xpra server instance. Try running from your server:
> >     ~/.xpra/run-xpra list :100
> >     or:
> >     ~/.xpra/run-xpra info :100
> >
> > If I go to a different terminal on the same machine (i.e. where I
> > started the server) WITHOUT the environment variables set up as I have
> > described above, I can start a session, run an xterm on it, and attach
> > to the session successfully as follows:
> >
> > ~/.xpra/run-xpra start :100
> > xterm -display :100 &
> > ~/xpra/run-xpra attach :100
> >
> >
> >     Also try to connect via ssh from Linux to rule out any problems with
> the
> >     client side.
> >
> > I CANNOT attach via ssh from another Linux machine. After successfully
> > entering my ssh password, I get the following error message:
> > 2016-10-01 09:33:37,037 The SSH process has terminated with exit code 255
> > 2016-10-01 09:33:37,037  the command line used was:
> > 2016-10-01 09:33:37,037  ssh -x -T */server_name/* xpra
> > initenv;~/.xpra/run-xpra _proxy :100 || $XDG_RUNTIME_DIR/xpra/run-xpra
> > _proxy :100 || xpra _proxy :100
> Try running just this command from a Linux terminal:
> ssh -x -T $SERVERHOST ~/.xpra/run-xpra _proxy :100
> Then press enter a few times, this should connect your terminal to the
> remote xpra server. The server will be confused by your keyboard input
> and print something like:
> disconnect: invalid packet header, character 0xa, not an xpra client??
>
> Maybe your ssh shell commands are restricted, or it uses a non-standard
> shell which is incompatible with the proxy syntax we use.
>
Well, this is embarrassing, but the server is closing the ssh connection
immediately after authentication, even for a regular login shell! It
happens both when using PuTTY on my Winnow 7 machine and when ssh'ing from
another Linux machine on the network. This is a VM that has been allocated
to me for work, and according to the FAQ written by IT, ssh SHOULD be
supported. I won't be able to get in touch with them until Monday, but
assuming the problem is on my end (i.e. not due to the way the VM was
provisioned/configured), what could possibly cause ssh to close connections
immediately after authentication?

>
> > At this point, after seeing the 'xpra initenv' command here, I thought
> > that I was on to something, so I added the PATH, PYTHONPATH, and
> > LD_LIBRARY_PATH setup as described above to my ~/.bashrc. Unfortunately,
> > after doing this, I still get the same error when attempting to connect
> > from another Linux machine (and my Windows machine).
> xpra initenv is there to setup one of the "run-xpra" scripts on the
> system if one is not present yet.
> You can override it using the environment variable XPRA_INITENV_COMMAND.
> ie to disable it:
> XPRA_INITENV_COMMAND="" xpra attach ssh ...
>
> Cheers
> Antoine
>