Re: [Queue-developers] X11 problem

[W. G. K. <wer...@ya...>]

 Lee Bradshaw <le...@se...> has informed via private email that ope=
nssh
(as opposed to the commercial F-secure product) probably has a license th=
at is
a mixture of BSD and public domain products.

I think the main thing that made openssh restrictive was the US govt's cr=
ypto
regulations, which have now (thankfully) been repealed.

However, RMS has suggested the BSD license is "restrictive" because it
requires, for instance, the "obnoxious" BSD-advertising clause. The BSD l=
icense
isn't especially compatible with GNU, although I suppose BSD is "almost"
unrestricted, so it is possible to, for example, write GNU code while
occasionally peeking at the BSD sources without too much worry about copy=
right
contamination.

If the license is a mix of public domain and BSD, it may be able to adapt=
 some
of the code (at least the public domain parts) to the GNU license.

"W. G. Krebs" wrote:

> The DISPLAY variable is less of a problem with Queue than xhost.
>
> Some hosts don't need xhost set if they share a filesystem, because the=
 X
> server will store MIT_MAGIC_COOKIE authorization information in .Xautho=
rity
> on startup, which lets anyhost connect that knows the cookie. This requ=
ires
> that the MIT_MAGIC_COOKIE authentication scheme (insecure and outdated)=
 be
> enabled on the Xserver, however.
>
> This might be a future improvement ---
>
> 1) Automatically setting xhost on the remote host (and possibly the
> propagated locate DISPLAY variable if it is not already set and there i=
s a
> local screen (easy))
>
> 2) Since security is a big concern with users, doing something sshd-lik=
e
> (unfortunately, the code ssh is not, AFAIK, GNU but is distributed unde=
r a
> restrictive license.) which sets up a local virtual screen on each host=
 and
> then has all X11 traffic encrypted. Since one is always allowed to conn=
ect
> to a local screen, this doesn't involve xhost or MIT_MAGIC_COOKIE.
>
> Santeri Hernej=E4rvi wrote:
>
> > Kai Harrekilde-Petersen wrote:
> >
> > > I have a slight problem with the queue-developer version.
> > >
> > > I am unable to run Model Technology's "vsim" (a commercial VHDL
> > > simulator) in GUI mode, while using queue.  In other words,
> > > if I say "queue -w -i --full-pty -- vsim", vsim will run in tty mod=
e.
> >
> > <snip>
> >
> > > Any help or suggestions are welcome,
> > >
> > >
> > > Kai
> >
> > Have you tried setting DISPLAY explicitly?
> >
> > Santeri
> >
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