[Info-vax] DECwindows over PuTTY

[David James]

On Fri, 13 Dec 2013 20:32:02 +0000, Simon Clubley wrote:

> On 2013-12-13, Scott Dorsey <kludge at panix.com> wrote:
>> In article <2f3268cf-f734-4cd3-ad65-80e7dc5a2d9d at googlegroups.com>,
>> <dlevine at schoolfortomorrow.net> wrote:
>>>Okay,
>>>So, I set up TCP/IP.  I am using PuTTY to SSH to the emulated system. 
>>>I am using Xming on Windows 7 as my display.  I am a VMS beginner.  My
>>>question is, how do I start DECWindows and make it display on XMing?
>>>Thx!
>>
>> You don't.  Putty is not an X11 server.  Try again.
>> --scott
> 
> From his point of view, this is actually a reasonable question.
> 
> The SSH protocol can be used as a transport for X11 applications running
> on the box at the other end of a SSH connection and I do it all the time
> using Linux with OpenSSH.
> 
> The missing piece is whether PuTTY will look for, and integrate with,
> any X11 server running locally under Windows (which means PuTTY would
> have support for transporting X11 connections as a prerequisite).
> 
> I don't know the answer to that question without research.
> 
> Simon.


PuTTY's help file suggests that it will work 

"3.4 Using X11 forwarding in SSH
The SSH protocol has the ability to securely forward X Window System 
applications over your encrypted SSH connection, so that you can run an 
application on the SSH server machine and have it put its windows up on 
your local machine without sending any X network traffic in the clear. 

In order to use this feature, you will need an X display server for your 
Windows machine, such as Cygwin/X, X-Win32, or Exceed. This will probably 
install itself as display number 0 on your local machine; if it doesn't, 
the manual for the X server should tell you what it does do. 

You should then tick the ‘Enable X11 forwarding’ box in the X11 panel (see 
section 4.23) before starting your SSH session. The ‘X display location’ 
box is blank by default, which means that PuTTY will try to use a sensible 
default such as :0, which is the usual display location where your X 
server will be installed. If that needs changing, then change it. ".


PuTTY has "Options controlling SSH X11 forwarding" under Connection | SSH 
| X11.

The items are:
Enable X11 forwarding
X display location
Remote X11 authentication protocol (options: MIT-Magic-Cookie-1 and XDM-
Authorization-1)
X authority file for local display

It's not something I've tried.