Using Axis-Remote over SSH

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16 Jan 2012 12:51 #16814 by BigJohnT
Replied by BigJohnT on topic Using Axis-Remote over SSH
Hi Andy,

Doing a google search for VNC gives a bunch of hits. Are you using a built in VNC on your Mac or some other version?

Thanks
John

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16 Jan 2012 13:02 #16816 by BigJohnT
Replied by BigJohnT on topic Using Axis-Remote over SSH
Well more googling shows me that Ubuntu has both the server and client built in...

John

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16 Jan 2012 13:13 #16817 by andypugh
Replied by andypugh on topic Using Axis-Remote over SSH
BigJohnT wrote:

Doing a google search for VNC gives a bunch of hits. Are you using a built in VNC on your Mac or some other version?


As I recall it is buit-in on both Mac and Ubuntu, but does need "Screen Sharing" enabling on the Ubuntu machine.

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18 Jan 2012 22:55 - 18 Jan 2012 22:57 #16904 by spartan21
Sorry for the delay in responding.

The single quotes worked, and AXIS is definitely running, as I get a list of axis/emc-related processes running in the active processes list.

However, the 'glxinfo' command on my remote computer returns the following:

name of display: localhost:10.0
Error: couldn't find RGB GLX visual or fbconfig

The same command on my Linux machine returns a lot of info, but possibly importantly: "name of display: :0.0"

Does this conflict between display names matter?

I have used VNC a little, but what I want is the simplest way possible of controlling my machine (in my opinion, simple terminal commands).

As for emcrsh, it looks like that does what I'm looking for, although I do like having the AXIS GUI. Unless anyone has any more ideas I'll start working on trying to get emcrsh working. Thank you very much for the help!
Last edit: 18 Jan 2012 22:57 by spartan21.

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18 Jan 2012 23:09 #16905 by dgarrett
Replied by dgarrett on topic Using Axis-Remote over SSH
it looks like glx not running on your mac X11 server -- you might check with knowledgeable mac folks to see if there is a way to support it

the localhost:10.0 is normal when using ssh -X

there may be some quirks but you can run more than one gui at the same time -- so you can have both axis and emcrsh

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18 Jan 2012 23:33 #16907 by spartan21
I got glx to work by removing a file on my Linux machine. axis-remote doesn't work, but now I do get something for 'glxinfo'.

I'm happy to go down the emcrsh route, but I'm confused as to how to be able to run both AXIS and emcrsh at the same time. The emcrsh manual says that I should change the DISPLAY parameter in my machine's .ini file to 'emcrsh'. But wouldn't this just push out AXIS?

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19 Jan 2012 01:37 #16916 by dgarrett
Replied by dgarrett on topic Using Axis-Remote over SSH
> The emcrsh manual says that I should change the DISPLAY parameter in my
> machine's .ini file to 'emcrsh'. But wouldn't this just push out AXIS?

Note the next line from the emcrsh manpage:

> To use emcrsh in addition to a normal emc2 GUI, you can either start it at
> the end of your .hal file, or run it by hand in a terminal window.


There are multiple contexts for DISPLAY

For X11, there is an environmental variable named DISPLAY that indicates

hostname:displayno.screen

For emc, there is an ini file item named DISPLAY in a stanza also named DISPLAY, for example:

[DISPLAY]DISPLAY=axis

This names a startup gui that is used when emc is invoked by the standard startup script named emc.

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20 Jan 2012 21:34 #16990 by spartan21
Thank you very much for your help!

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12 Oct 2019 23:26 #147761 by madigan
Replied by madigan on topic Using Axis-Remote over SSH
I came up with a primitive but functional solution to use axis-remote over ssh. You can read about the approach and download some code to implement the mdi mode here:

github.com/rbmadigan/axis-remote-ssh-fix...is_remote_client/src

comments and improvements are welcome.

Bruce

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13 Oct 2019 02:07 #147771 by dgarrett
Replied by dgarrett on topic Using Axis-Remote over SSH
This works for me to a machine running LinuxCNC with
the axis gui displayed on that machine: (--help used
for testing):
ssh machine_running_axis DISPLAY=:0.0 axis-remote --help

The above requires machine_running_axis to have a deb
install of LinuxCNC so that axis-remote is in the
default path that includes /usr/bin

For a RIP build, one would need to specify the
specific location of axis-remote, for example:
ssh machine_running_axis DISPLAY=:0.0 /home/username/linuxcnc-dev/bin/axis-remote --help


I have /etc/ssh/sshd_config:X11Forwarding yes
but i dont think it matters since the command
above is not forwarding.

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