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Re: X server running on a different machine [Re: Wanted: a special purpose Debian installer]

From Polyna-Maude Racicot-Summerside <debian@polynamaude.com>
Newsgroups linux.debian.user
Subject Re: X server running on a different machine [Re: Wanted: a special purpose Debian installer]
Date 2021-06-29 22:50 +0200
Message-ID <CvsQ9-1rv-3@gated-at.bofh.it> (permalink)
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Hi,

On 2021-06-29 2:43 p.m., Greg Wooledge wrote:

> DO NOT USE xhost + WITH ssh -X OR ssh -Y
> 
> That was the fucking point.
WoW...
Take it *easy* there...
> Now, if you want to advocate that people should use xhost + because
I never talked about xhost myself.
And the only thing I said was that by learning how things work from the
inside out, you'll be able to fully understand problems that may arise
when ssh -X does not do what you want automatically.

> that's how you learned things back in the early 1990s, that's your right,
> but I hope you will at least point out how INCREDIBLY INSECURE this is,

I never said in no situation something like "use xhost +".
The same way as I never said to unblock all the ports on your router or
to let everyone have access to *sudo* on a server.

> 
> Even then, you wouldn't combine it with ssh -X.  xhost + and manually
> overriding DISPLAY bypasses the ssh encryption layer entirely.  It also
> involves starting the X server with a non-default option, so it's quite
> a lot more work than using ssh -X.  Which is good.  We wouldn't want the
> horribly broken way to be the easy way.
> 

I never said anything related to using DISPLAY and / or xhost with ssh.

Maybe if you read what it is said in the complete context, then you may
start to get a beginning of a understanding.

You are *messing up* two things.

The first :
I suggested to read some book, someone else gave some good references
for books name as I only suggested "X11 books from O'Reilly".

The second :
I suggested to learn on how does X11 networking infrastructure work. And
this is  how does a client know where to display using the DISPLAY
variable and how does X11 authenticate client.
*As you can see, there's no indication of using xhost*

The third :
This thread suggested to use ssh -X for using a X client and X server on
different machine. As a easier way around.

The fourth :
I suggested to still learn the inner working of X authentication so that
if a problem arise with ssh -X then you'll be able to do some diagnostic
yourself.

The fifth :
You show up and....(whatever)

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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Thread

Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-25 15:50 +0200
  Re: Wanted: a special purpose Debian installer Dan Ritter <dsr@randomstring.org> - 2021-06-25 16:00 +0200
    Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-25 16:50 +0200
  Re: Wanted: a special purpose Debian installer "Andrew M.A. Cater" <amacater@einval.com> - 2021-06-25 23:10 +0200
    Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-26 11:50 +0200
      Re: Wanted: a special purpose Debian installer David Wright <deblis@lionunicorn.co.uk> - 2021-06-26 19:40 +0200
        Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-26 20:40 +0200
          Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-30 15:50 +0200
            Re: Wanted: a special purpose Debian installer Felix Miata <mrmazda@earthlink.net> - 2021-06-30 20:50 +0200
              Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-07-01 15:10 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-01 17:30 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-02 19:50 +0200
                Re: Wanted: a special purpose Debian installer Felix Miata <mrmazda@earthlink.net> - 2021-07-01 18:50 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-01 22:10 +0200
                Re: Wanted: a special purpose Debian installer Felix Miata <mrmazda@earthlink.net> - 2021-07-01 22:40 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-02 00:00 +0200
                Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-07-02 12:00 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-02 12:20 +0200
                Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-02 21:10 +0200
                Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-07-01 22:20 +0200
            Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-07-01 00:20 +0200
  Re: Wanted: a special purpose Debian installer Curt <curty@free.fr> - 2021-06-27 09:40 +0200
    Re: Wanted: a special purpose Debian installer Richard Owlett <rowlett@cloud85.net> - 2021-06-27 10:40 +0200
    Re: Wanted: a special purpose Debian installer Peter Ehlert <pb21a@sdi-baja.com> - 2021-06-27 16:40 +0200
      Re: Wanted: a special purpose Debian installer Greg Wooledge <greg@wooledge.org> - 2021-06-27 16:40 +0200
        Re: Wanted: a special purpose Debian installer Greg Wooledge <greg@wooledge.org> - 2021-06-27 17:40 +0200
        Re: Wanted: a special purpose Debian installer Peter Ehlert <pb21a@sdi-baja.com> - 2021-06-27 17:40 +0200
          Re: Wanted: a special purpose Debian installer Brian <ad44@cityscape.co.uk> - 2021-06-27 19:40 +0200
          X server running on a different machine [Re: Wanted: a special purpose Debian installer] "Rick Thomas" <rick.thomas@pobox.com> - 2021-06-29 04:40 +0200
            Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 04:50 +0200
              Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Greg Wooledge <greg@wooledge.org> - 2021-06-29 05:20 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 11:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-30 10:30 +0200
              Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] IL Ka <kazakevichilya@gmail.com> - 2021-06-29 11:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 18:20 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] "Andrew M.A. Cater" <amacater@einval.com> - 2021-06-29 18:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Greg Wooledge <greg@wooledge.org> - 2021-06-29 19:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 20:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Greg Wooledge <greg@wooledge.org> - 2021-06-29 20:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] "Andrew M.A. Cater" <amacater@einval.com> - 2021-06-29 21:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special purpose Debian installer] Lucas Castro <lucas@gnuabordo.com.br> - 2021-06-29 21:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 22:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Greg Wooledge <greg@wooledge.org> - 2021-06-29 23:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 23:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-30 10:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 11:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] The Wanderer <wanderer@fastmail.fm> - 2021-06-30 12:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Andrei POPESCU <andreimpopescu@gmail.com> - 2021-07-01 01:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] The Wanderer <wanderer@fastmail.fm> - 2021-06-30 12:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 15:20 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] The Wanderer <wanderer@fastmail.fm> - 2021-06-30 15:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] <tomas@tuxteam.de> - 2021-06-30 16:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] <tomas@tuxteam.de> - 2021-06-30 12:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-29 22:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] <tomas@tuxteam.de> - 2021-06-30 12:00 +0200
                Mailing list behaviour, words and that [was: Re: X server ...] <tomas@tuxteam.de> - 2021-06-30 14:50 +0200
                Re: Mailing list behaviour, words and that [was: Re: X server ...] Roberto C. Sánchez <roberto@debian.org> - 2021-06-30 15:00 +0200
                Re: Mailing list behaviour, words and that [was: Re: X server ...] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 15:40 +0200
                Re: Mailing list behaviour, words and that [was: Re: X server ...] Brian <ad44@cityscape.co.uk> - 2021-06-30 20:20 +0200
                Re: Mailing list behaviour, words and that [was: Re: X server ...] Brian <ad44@cityscape.co.uk> - 2021-06-30 20:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 15:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] <tomas@tuxteam.de> - 2021-06-30 16:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Greg Wooledge <greg@wooledge.org> - 2021-06-30 17:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] <tomas@tuxteam.de> - 2021-06-30 17:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 17:50 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Dan Ritter <dsr@randomstring.org> - 2021-06-30 18:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 18:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Dan Ritter <dsr@randomstring.org> - 2021-06-30 20:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Brian <ad44@cityscape.co.uk> - 2021-06-30 21:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-07-01 07:20 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Dan Ritter <dsr@randomstring.org> - 2021-07-01 11:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] "Thompson, Brian" <brian@hashvault.io> - 2021-06-30 18:10 +0200
                Re: Artifical Intellignce ( was : X something) Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-30 19:00 +0200
                Re: Artifical Intellignce ( was : X something) <tomas@tuxteam.de> - 2021-06-30 19:20 +0200
                [OT, maybe] Joe <joe@jretrading.com> - 2021-06-30 22:20 +0200
                Re: [OT, maybe] Weaver <weaver@riseup.net> - 2021-06-30 22:30 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Andrei POPESCU <andreimpopescu@gmail.com> - 2021-07-01 02:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Andrei POPESCU <andreimpopescu@gmail.com> - 2021-07-01 02:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-07-01 06:40 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] - continue Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-07-01 07:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Joe <joe@jretrading.com> - 2021-06-30 22:10 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Brian <ad44@cityscape.co.uk> - 2021-06-30 20:00 +0200
                Re: X server running on a different machine [Re: Wanted: a special  purpose Debian installer] Brian <ad44@cityscape.co.uk> - 2021-07-01 01:10 +0200

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