Re: How to pull a gui gnus from linux to windows desktop

Re: How to pull a gui gnus from linux to windows desktop

[Eric S Fraga]

Harry Putnam <reader@newsguy.com> writes:

> Can anyone tell me, at least a general outline of what I'd need to do
> to be able to connect to a gnus instance running on a linux server in
> console mode, from a windows machine, and see gnus in a gue version of
> emacs?
>
> I know how connect to an emacs daemon and there for a gnus session if
> its running by ssh into the linux box, using cygwin or just putty.
>
> I'd like to figure out how to get the windows end to appear in gui
> emacs.
>
> Anyone doing this or something similar?
>
>

I've not done this recently but you should be able to accomplish this if
you run an X Window System server (software) on your Windows machine.
Cygwin used to have such a server available.  SSH supports X (using the
"-X" flag on Linux; I don't know about Windows).

As I said, I've not done this recently as it's been years since I have
had to use Windows.

HTH,
eric

-- 
Eric S Fraga (GnuPG: 0xC89193D8FFFCF67D)

How to pull a gui gnus from linux to windows desktop

[Harry Putnam]

Can anyone tell me, at least a general outline of what I'd need to do
to be able to connect to a gnus instance running on a linux server in
console mode, from a windows machine, and see gnus in a gue version of
emacs?

I know how connect to an emacs daemon and there for a gnus session if
its running by ssh into the linux box, using cygwin or just putty.

I'd like to figure out how to get the windows end to appear in gui
emacs.

Anyone doing this or something similar?

Re: How to pull a gui gnus from linux to windows desktop

[Daniel Pittman]

Harry Putnam <reader@newsguy.com> writes:

> Can anyone tell me, at least a general outline of what I'd need to do to be
> able to connect to a gnus instance running on a linux server in console
> mode, from a windows machine, and see gnus in a gue version of emacs?

1. Install Xming on the Win32 machine.[1]
2. Set your DISPLAY appropriately on the Linux server.[2]
3. Huge Profit!

Regards,
        Daniel

Footnotes: 
[1]  http://www.straightrunning.com/XmingNotes/

[2]  Either forward it through SSH, or just point it an the Win32 machine.

-- 
✣ Daniel Pittman            ✉ daniel@rimspace.net            ☎ +61 401 155 707
               ♽ made with 100 percent post-consumer electrons

Re: How to pull a gui gnus from linux to windows desktop

[Harry Putnam]

Daniel Pittman <daniel@rimspace.net> writes:

> 1. Install Xming on the Win32 machine.[1]
> 2. Set your DISPLAY appropriately on the Linux server.[2]
> 3. Huge Profit!

Haa nice.

Sorry to be a dunce and probably at risk of taxing your patience..

> 1. Install Xming on the Win32 machine. 
  Will it matter if it is 64 bit?

> 2. Set your DISPLAY appropriately on the Linux server.[2]

   ( [2]  Either forward it through SSH, or just point it an 
          the Win32 machine.
   
Errr . .  you don't mean just ssh -X do you?  And how would one set point
it at the win machine?  By IP or UNC or what?

> 3. Huge Profit!

  I think I got that part... 

Re: How to pull a gui gnus from linux to windows desktop

[Daniel Pittman]

Harry Putnam <reader@newsguy.com> writes:
> Daniel Pittman <daniel@rimspace.net> writes:
>
>> 1. Install Xming on the Win32 machine.[1]
>> 2. Set your DISPLAY appropriately on the Linux server.[2]
>> 3. Huge Profit!
>
> Haa nice.  Sorry to be a dunce and probably at risk of taxing your
> patience..

No problem. :)

>> 1. Install Xming on the Win32 machine. 
>   Will it matter if it is 64 bit?

It shouldn't, because Windows has a very good 32/64 bit compatibility story,
but I have never tried it myself.  I just can't imagine why it would...

>> 2. Set your DISPLAY appropriately on the Linux server.[2]
>
>    ( [2]  Either forward it through SSH, or just point it an 
>           the Win32 machine.
>    
> Errr . .  you don't mean just ssh -X do you?  And how would one set point
> it at the win machine?  By IP or UNC or what?

Yup.  The DISPLAY variable is a standard X feature, with the syntax:

    ${host}:${display}

Eg:  export DISPLAY=win64.example.com:0
     export DISPLAY=127.0.0.1:0

Your display number should be zero (the first X display), and it will make a
TCP connection to port 6000 + <display number> on the target machine to
display things.

        Daniel
-- 
✣ Daniel Pittman            ✉ daniel@rimspace.net            ☎ +61 401 155 707
               ♽ made with 100 percent post-consumer electrons

Re: How to pull a gui gnus from linux to windows desktop

[Harry Putnam]

Daniel Pittman <daniel@rimspace.net> writes:

>>> 2. Set your DISPLAY appropriately on the Linux server.[2]
>>
>>    ( [2]  Either forward it through SSH, or just point it an 
>>           the Win32 machine.
>>    
>> Errr . .  you don't mean just ssh -X do you?  And how would one set
>> point it at the win machine?  By IP or UNC or what?
>
> Yup.  The DISPLAY variable is a standard X feature, with the syntax:
>
>     ${host}:${display}
>
> Eg:  export DISPLAY=win64.example.com:0
>      export DISPLAY=127.0.0.1:0
>
> Your display number should be zero (the first X display), and it
> will make a TCP connection to port 6000 + <display number> on the
> target machine to display things.

Sorry to keep hacking away about this but I'm not getting the expected
results.

Does X11 have to be running on remote (linux) box?

I mean if I'm on a windows machine with Xming running, in order to
pull a gui gnus session to the windows machine does X have to be
running on the linux machine?

I ask because my original question was about how to do this when the
remote linux machine is in console mode.

When I attempt the connection in that situation I get an error on the
linux remote if I try to connect to a running emacs daemon.

Using putting to ssh to remote then:

emacsclient  -s nognus -c (where `nognus' is the daemons name)

  Waiting for Emacs...
  *ERROR*: Display 192.168.0.3:0 can't be opened

The ip number there is the windows machines' static IP on home lan. 
As you see the display is set to it.

If I start emacs separate from the daemon it just starts in -nw mode
in the teminal on the remote.

Maybe there is no way to do this without X running on remote?

Re: How to pull a gui gnus from linux to windows desktop

[Daniel Pittman]

Harry Putnam <reader@newsguy.com> writes:
> Daniel Pittman <daniel@rimspace.net> writes:
>
>>>> 2. Set your DISPLAY appropriately on the Linux server.[2]
>>>
>>>    ( [2]  Either forward it through SSH, or just point it an 
>>>           the Win32 machine.
>>>
>>> Errr . .  you don't mean just ssh -X do you?  And how would one set
>>> point it at the win machine?  By IP or UNC or what?
>>
>> Yup.  The DISPLAY variable is a standard X feature, with the syntax:
>>
>>     ${host}:${display}
>>
>> Eg:  export DISPLAY=win64.example.com:0
>>      export DISPLAY=127.0.0.1:0
>>
>> Your display number should be zero (the first X display), and it
>> will make a TCP connection to port 6000 + <display number> on the
>> target machine to display things.
>
> Sorry to keep hacking away about this but I'm not getting the expected
> results.

OK.  To make sure I am actually helping, you want a GUI Emacs window to
display on the Win32 system, but Emacs to be running on Linux, right?

> Does X11 have to be running on remote (linux) box?

No.  X11 has a client/server model: the "display server" is the bit that draws
the Windows on the screen, and Emacs is a client of that.

When you set DISPLAY to ${hostname}:${display} you tell the client (Emacs) to
open a TCP connection to that system and draw all the GUI stuff there.

So, only client libraries on the Linux side. :)

> When I attempt the connection in that situation I get an error on the
> linux remote if I try to connect to a running emacs daemon.
>
> Using putting to ssh to remote then:
>
> emacsclient  -s nognus -c (where `nognus' is the daemons name)
>
>   Waiting for Emacs...
>   *ERROR*: Display 192.168.0.3:0 can't be opened
>
> The ip number there is the windows machines' static IP on home lan.  As you
> see the display is set to it.

*nod*  My guess is that you have a firewall problem or something like that, or
possibly that your Xming server doesn't allow access from the Linux machine.

You could try the following:

1. Check the Windows firewall is allowing connections on TCP port 6000.
2. Check Xming is listening on the network, not just loopback.
3. Run 'xhost +${ip_of_linux}' on the Win32 machine.

Alternately, these cover using SSH X forwarding on Win32:

http://www.cse.unsw.edu.au/~helpdesk/documentation/Putty.html
http://qiu.bioweb.hunter.cuny.edu/index.php?option=com_content&view=article&id=110

> If I start emacs separate from the daemon it just starts in -nw mode in the
> teminal on the remote.  Maybe there is no way to do this without X running
> on remote?

Emacs on the Linux system needs to be compiled with X support, and needs to be
willing to open a new X display, but that *should* be possible if you are
getting as far as that error.

        Daniel
-- 
✣ Daniel Pittman            ✉ daniel@rimspace.net            ☎ +61 401 155 707
               ♽ made with 100 percent post-consumer electrons

Re: How to pull a gui gnus from linux to windows desktop

[Harry Putnam]

Daniel Pittman <daniel@rimspace.net> writes:

> You could try the following:
>
> 1. Check the Windows firewall is allowing connections on TCP port 6000.
> 2. Check Xming is listening on the network, not just loopback.
> 3. Run 'xhost +${ip_of_linux}' on the Win32 machine.

I guess it was just my bumbling or maybe because I got hold of an
older version of Xming... but once I went thru the Donation procedure
and got a uid and passwd for the server with the most recent verions,
and paid more attention to configuring the launcher.... also noticed I
could start the remote emacs right from xming launcher.

That way it worked first try.

Thanks for all the help.