[Cialug] X to X

[Bryan Baker]

Replying to my own post: it looks like using ssh compression actually  
does a better job than LBX did, and it's been completely scrapped in  
modern X systems.

http://en.wikipedia.org/wiki/Low_Bandwidth_X

On Mar 1, 2007, at 10:10 AM, Bryan Baker wrote:

> Back in the dark ages I remember a project or extension called LBX  
> - Low Bandwidth X which supposedly addressed much of that, never  
> used it, but it caught my attention at the time.
>
> On Mar 1, 2007, at 8:14 AM, Jeffrey C. Ollie wrote:
>> On Thu, 2007-03-01 at 08:01 -0600, Daniel A. Ramaley wrote:
>>> On Wednesday 28 February 2007 23:55, Jeffrey C. Ollie wrote:
>>>> Then, when you SSH from one system to another SSH will take care of
>>>> setting up xauth and the DISPLAY environment variable to securely
>>>> forward the X protocol across the SSH connection.  This will work
>>>> pretty well over a fast LAN connection, but will be pretty slow
>>>> across the Internet.
>>>
>>> Raw X over SSH is indeed sluggish over a slow connection. But  
>>> i've run
>>> VNC over SSH before and despite seeming to have more stuff to  
>>> send (an
>>> entire desktop as opposed to just 1 application), it is much more
>>> responsive. Unfortunately, i do VNC over SSH so rarely that i can  
>>> never
>>> remember the commands to start a session and so i usually just use X
>>> over SSH and tolerate the slowness.
>>
>> The relative responsiveness of VNC vs the X protocol probably has  
>> to do
>> with how each protocol works.  VNC just sends screen data in one
>> direction and mouse movement and keystrokes in the other  
>> direction.  The
>> X protocol is much more of a request/reply type of protocol where the
>> latency of a slow connection has a much more noticeable effect.  And
>> don't underestimate the amount of data that X has to send...
>>
>> Jeff
>>
>> _______________________________________________
>> Cialug mailing list
>> Cialug at cialug.org
>> http://cialug.org/mailman/listinfo/cialug
>
> --
> Bryan Baker
> President
> Des Moines Macintosh Users Group
> http://www.dmmug.org
> president at dmmug.org
>
> _______________________________________________
> Cialug mailing list
> Cialug at cialug.org
> http://cialug.org/mailman/listinfo/cialug

--
Bryan Baker
President
Des Moines Macintosh Users Group
http://www.dmmug.org
president at dmmug.org