Re: cups config for Brother HL-L2340DW

[Pierre Frenkiel]

On Fri, 24 Nov 2017, arne wrote:


Did you try:
http://your-printers-ip-number/general/status.html


  yes, it's one of the different methods I tried to get rid of
  this manual feed, but without success.
  Anyway, thank you for your help.
  After fighting a whole day with that damned Brother, I decided to
  return it to the seller, and bought a HP Laserjet Pro M227sdn.
  It is more expensive, but was configured in 30 seconds, and works
  like a charm, either for printing or scanning.

best regards,
--
Pierre Frenkiel

Re: software to do drawings of houses, gardens, etc.

[Anil Duggirala]

On Fri, Nov 24, 2017, at 02:06 AM, to...@tuxteam.de wrote:
> -BEGIN PGP SIGNED MESSAGE-
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> 
> On Fri, Nov 24, 2017 at 03:39:58AM +0100, Emanuel Berg wrote:
> > Doug wrote:
> > 
> > > I do not disparage the hard work some devs
> > > have put into Linux CAD routines, but I don't
> > > think that's the way to go if you're going to
> > > do some serious CAD work over the course
> > > of time.
> > 

I would think precisely the opposite. Gaining control over the software
you use will prove really useful only when you are planning to use it
for a long time. As an example, I would imagine that a serious person
might require a very specific functionality from the software, then they
could just write the code to achive this function.

Check out Varicad (.com) too, its is propriatary but you can try it for
free.

Re: cups config for Brother HL-L2340DW

[Pierre Frenkiel]

On Fri, 24 Nov 2017, Ben Caradoc-Davies wrote:


I use . I see an "Add Printer" and a "Manage 
Printers" button. I can click "Manage Printers" and select the printer. I can 
select "Administration" / "Modify Printer" in the dropdown menu


  As I said, I used either this method or system-config-printer,
  but your driver was not listed in the available drivers.


Are you in the cups group?


  Curiously, I don't have a cups group

best regards,
--
Pierre Frenkiel

Re: software to do drawings of houses, gardens, etc.

[tomas]

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On Fri, Nov 24, 2017 at 03:16:08AM -0500, Anil Duggirala wrote:

[...]

> I would think precisely the opposite. Gaining control over the software
> you use will prove really useful only when you are planning to use it
> for a long time.

The question is... what is useful for us all, not only for *you* or
*me*?

More and more, not gaining control over your software means your
vendor gains control over you (cf. the stampede to the cloud, apps,
many vendor's move to pay-per-use and subscription models, etc. etc.)

To have a remote chance of having a say on this, we "consumers"
have to bundle forces.

No, I don't want to be reduced to a gullet.

Cheers
- -- t
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Re: software to do drawings of houses, gardens, etc.

[Emanuel Berg]

t wrote:

> For those of us around a little longer,
> perhaps you remember that time when GNU/Linux
> started to get some traction. At that time,
> Microsoft used to say that well, an OS wasn't
> that hard, but for something really complex
> like a web browser... the free software
> couldn't really pull that off.

OK, so now the current level of
"impossibleness" is a FOSS CAD?

-- 
underground experts united
http://user.it.uu.se/~embe8573

Re: software to do drawings of houses, gardens, etc.

[tomas]

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On Fri, Nov 24, 2017 at 09:33:18AM +0100, Emanuel Berg wrote:
> t wrote:
> 
> > For those of us around a little longer,
> > perhaps you remember that time when GNU/Linux
> > started to get some traction. At that time,
> > Microsoft used to say that well, an OS wasn't
> > that hard, but for something really complex
> > like a web browser... the free software
> > couldn't really pull that off.
> 
> OK, so now the current level of
> "impossibleness" is a FOSS CAD?

Yeah. But generally, whatever Professional (TM). We all know
that free software is just a hobby (or something for cheapskates).

Sorry, I've my sarcastic day today. Must be the approaching
winter ;-P

Cheers
- -- t
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=O8NA
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Re: software to do drawings of houses, gardens, etc.

[Emanuel Berg]

t wrote:

> Yeah. But generally, whatever Professional
> (TM).

Here, does "professional" denote some quality
with the software or is it about who uses it
and how?

Because when I chop firewood, I do it with the
most expansive axe in the hardware store.
While this doesn't make me a professional, if
it was too difficult for mere mortals to
handle, there wouldn't be a hardware store to
begin with. Or at least it would be the size of
a spacy apartment and not a stadium.

So as for me, I don't really care how other
people use the software as long as it is there
for me, professional or not.

-- 
underground experts united
http://user.it.uu.se/~embe8573

Re: software to do drawings of houses, gardens, etc.

[Emanuel Berg]

t wrote:

>> http://user.it.uu.se/~embe8573/figures/pic/llc
>
> :-)
>
> Now write an Elisp-to-pic compiler
>
>  (seq (circle :radius 0.5 :label "best effort
> core") (arrow :size 0.2) ...)

This is something I wanted for years. But it
has to be real-time so the moment you evaluate
(plot-pixel 0 0 "red") a red dot appears in
the top-left corner of the screen (can be
a separate window). Perhaps this can be done
with SLIME and SDL, I don't know.

I crosspost this to gmane.emacs.help .

-- 
underground experts united
http://user.it.uu.se/~embe8573

"Professional" [was: software to do drawings of houses, gardens, etc.]

[tomas]

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On Fri, Nov 24, 2017 at 11:00:27AM +0100, Emanuel Berg wrote:
> t wrote:
> 
> > Yeah. But generally, whatever Professional
> > (TM).
> 
> Here, does "professional" denote some quality
> with the software or is it about who uses it
> and how?

Neither nor. It was sarcastic. But I guess you
got that anyway ;-)

> Because when I chop firewood, I do it with the
> most expansive axe in the hardware store.

Strange. I tend to take the most appropriate for
the job (if I'm going to chop wood every winter,
I try to get one which is durable). But I usually
don't look at the price as long as it is roughly
whithin budget. It's not the label I'm after (and
yes, the price is just part of the label, as you
can see in Apple products, but also Gucci, whatever).

Otherwise I might end up with Ethernet cable for
audiophiles [1] [2]

Cheers

[1] 
https://arstechnica.com/staff/2015/02/to-the-audiophile-this-1-ethernet-cable-apparently-makes-sense/
[2] https://www.whathifi.com/comment/412677#comment-412677

- -- t
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Re: software to do drawings of houses, gardens, etc.

[Eduardo M KALINOWSKI]

On qui, 23 nov 2017, Emanuel Berg wrote:

Is there a piece of software that works like
gnuplot or pic/troff were you feed the program
a script with instructions and data and then
the program generates the drawing? That would
be simpler and more to the point as I'm not
designing anything, I'm just want a computer
representation of what already is.


Asymptote, perhaps?

If you're willing to add a little Latex around your drawing, the Tikz package.

--
Eduardo M KALINOWSKI
edua...@kalinowski.com.br

Re: software to do drawings of houses, gardens, etc.

[tomas]

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On Fri, Nov 24, 2017 at 11:16:52AM +, Eduardo M KALINOWSKI wrote:

[...]

> Asymptote, perhaps?
> 
> If you're willing to add a little Latex around your drawing, the Tikz package.

TikZ and PGF are absolutely awesome (package is texlive-pictures, BTW.). But
quite a different kettle of fish: not a CAD program by a long shot.

Cheers
- -- t
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=/JFw
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Re: software to do drawings of houses, gardens, etc.

[Eduardo M KALINOWSKI]

On sex, 24 nov 2017, tomas wrote:

TikZ and PGF are absolutely awesome (package is texlive-pictures, BTW.). But
quite a different kettle of fish: not a CAD program by a long shot.


Definitely, but they do fit his new request:

  Is there a piece of software that works like
  gnuplot or pic/troff were you feed the program
  a script with instructions and data and then
  the program generates the drawing?


There might be even be Tikz libraries for the kind of drawing he is  
looking for.

--
Eduardo M KALINOWSKI
edua...@kalinowski.com.br

Re: software to do drawings of houses, gardens, etc.

[Emanuel Berg]

Eduardo M KALINOWSKI wrote:

>> TikZ and PGF are absolutely awesome (package
>> is texlive-pictures, BTW.). But quite
>> a different kettle of fish: not a CAD
>> program by a long shot.
>
> Definitely, but they do fit his new request:
>
>   Is there a piece of software that works
>   like gnuplot or pic/troff were you feed the
>   program a script with instructions and data
>   and then the program generates the drawing?
>
> There might be even be Tikz libraries for the
> kind of drawing he is looking for.

If we are talking LaTeX now, does anyone have
a "MWE" as they like to say?

It absolutely doesn't have to be CAD by any
standard other than the ability to draw simple
geometrical objects and have them denoted
with labels.

-- 
underground experts united
http://user.it.uu.se/~embe8573

Re: cups config for Brother HL-L2340DW

[Gene Heskett]

On Friday 24 November 2017 03:00:59 Pierre Frenkiel wrote:

> On Fri, 24 Nov 2017, arne wrote:
> > Did you try:
> > http://your-printers-ip-number/general/status.html
>
>yes, it's one of the different methods I tried to get rid of
>this manual feed, but without success.
>Anyway, thank you for your help.
>After fighting a whole day with that damned Brother, I decided to
>return it to the seller, and bought a HP Laserjet Pro M227sdn.
>It is more expensive, but was configured in 30 seconds, and works
>like a charm, either for printing or scanning.
>
> best regards,

Did you even try brothers own drivers for that printer? I am sitting here 
looking at two brother printers, one a $110 b&w laser, the other a color 
inkjet/scanner MFJ-6920 that can do 11x17 both print and autofeed scan. 
Using brothers own drivers, they Just Work(TM).

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page 

Re: cups config for Brother HL-L2340DW

[Pierre Frenkiel]

On Fri, 24 Nov 2017, Gene Heskett wrote:


Did you even try brothers own drivers for that printer? I am sitting here
looking at two brother printers, one a $110 b&w laser, the other a color
inkjet/scanner MFJ-6920 that can do 11x17 both print and autofeed scan.
Using brothers own drivers, they Just Work(TM).


  Of course it's the 1st thing I did!
  The fact that some models works doesn't prove that all models work...

best regards,
--
Pierre Frenkiel

Thinkpadt60p/Stretch 9.2 Start up error

[dekks herton]

Hello

Off my latest boots i've found the following errors, googling shows 


variations of https://lists.debian.org/debian-kernel/2017/01/msg00361.html for 
xen based systems
& some redhat ones from the recent 6 months. 


Any ideas what module/hardware is throwing the error?


[ cut here ]
Nov 24 11:54:50 T60p kernel: WARNING: CPU: 1 PID: 1 at 
/build/linux-EAZfyE/linux-4.9.51/arch/x86/mm/dump_pagetables.c:227 
note_page+0x640/0x7e0
Nov 24 11:54:50 T60p kernel: x86/mm: Found insecure W+X mapping at address 
c01ce000/0xc01ce000
Nov 24 11:54:50 T60p kernel: Modules linked in: lz4 lz4_compress
Nov 24 11:54:50 T60p kernel: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 
4.9.0-4-amd64 #1 Debian 4.9.51-1
Nov 24 11:54:50 T60p kernel: Hardware name: LENOVO 20088HG/20088HG, BIOS 
79ETD3WW (2.13 ) 04/30/2007
Nov 24 11:54:50 T60p kernel:   b8929974 
ab94bdd8 
Nov 24 11:54:50 T60p kernel:  b8676eae ab94bed0 
ab94be30 0004
Nov 24 11:54:50 T60p kernel:   ab94bed0 
 b8676f2f
Nov 24 11:54:50 T60p kernel: Call Trace:
Nov 24 11:54:50 T60p kernel:  [] ? dump_stack+0x5c/0x78
Nov 24 11:54:50 T60p kernel:  [] ? __warn+0xbe/0xe0
Nov 24 11:54:50 T60p kernel:  [] ? warn_slowpath_fmt+0x5f/0x80
Nov 24 11:54:50 T60p kernel:  [] ? __schedule+0x23b/0x6d0
Nov 24 11:54:50 T60p kernel:  [] ? note_page+0x640/0x7e0
Nov 24 11:54:50 T60p kernel:  [] ? 
ptdump_walk_pgd_level_core+0x2d3/0x3f0
Nov 24 11:54:50 T60p kernel:  [] ? rest_init+0x80/0x80
Nov 24 11:54:50 T60p kernel:  [] ? kernel_init+0x26/0x100
Nov 24 11:54:50 T60p kernel:  [] ? ret_from_fork+0x25/0x30
Nov 24 11:54:50 T60p kernel: ---[ end trace d8ccadf21a3e1517 ]---
--
regards.

Thinkpad T60p 2.33Ghz 2GB SXGA+

Jabber IM: dekkz...@jabber.hot-chilli.net


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Re: p laptop with stretch/xfce: screen blanks but won't "wake up"

[dekks herton]

On 11/24, Jaime T wrote:

Hi all.

I'm running stable (stretch)/xfce on an hp/compaq nx6110 laptop, and
when the screen blanks, I can't get it to wake up again (nothing
appears on the screen when I press the keys on the keyboard and move
the mouse).

The closest debian bug report that I've seen is:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=787241

although these other (non-debian) bug reports seem closer:
https://bugzilla.xfce.org/show_bug.cgi?id=11627
https://bugzilla.xfce.org/show_bug.cgi?id=12480
https://bbs.archlinux.org/viewtopic.php?id=194313

The laptop is currently sitting there, powered on with a blank screen,
but I have a load of unsaved work on the desktop. I can ssh into it
and run commands on it. Does anyone know if there's anything that I
can do to wake the screen up so that I can save my work?

Thank you, Jaime



Borrow an external monitor to save work?

Are you sure the backlight hasn't died?

--
regards.

Thinkpad T60p 2.33Ghz 2GB SXGA+

Jabber IM: dekkz...@jabber.hot-chilli.net


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Wild cursor, was Re: OT plain text missing from web mail

[David Wright]

> Dan Norton composed on 2017-11-22 19:09 (UTC-0500):
> ...
> > 4. This laptop I'm borrowing is notorious for having a hyper-sensitive touch
> > pad. You can be typing along in the spot you have chosen for input and 
> > suddenly
> > it gets a wild hair and relocates the cursor to somewhere else. As a hunt 
> > and
> > peck typist, I've been victimized many times by this and had to undo and 
> > start
> > over. The new insertion point is unpredictable AFAICT.

Perhaps you need to investigate syndaemon. This disables the Synaptics
touchpad whenever a key is struck. The disabled period is configurable,
so if I type
$ syndaemon -i 1
into any old Xterm, the cursor will be dead for one second after any
key is struck. You can set it up in the background with   -d   and
put it in .xsession or equivalent.

The only downside is if you're adept at two-handed work with cursor
and keystrokes, but bear in mind that any attached mouse is unaffected.

Cheers,
David.

Re: software to do drawings of houses, gardens, etc.

[Eduardo M KALINOWSKI]

On sex, 24 nov 2017, Emanuel Berg wrote:

If we are talking LaTeX now, does anyone have
a "MWE" as they like to say?

It absolutely doesn't have to be CAD by any
standard other than the ability to draw simple
geometrical objects and have them denoted
with labels.


There are several here: http://www.texample.net/tikz/examples/
--
Eduardo M KALINOWSKI
edua...@kalinowski.com.br

firefox cannot download after jessie->stretch

[Frank Miles]

firefox/iceweasel has worked just fine for years

I just upgraded my home jessie machine to stretch.  That went very 
smoothly, so far only one exception.  I can no longer download anything
with this browser.  I've reinstalled, cleared out my profile, run in
'safe' mode (no add-ons such as no-script).  I've tried other 
destinations, including "ask me" (it never asks).  I only get the
truncated error message:
   "could not be saved, because you cannot change the contents of that 
folder."

Turned off my firewall - no change.  Tried downloading from other sources,
no change.

Epiphany downloads the same files with no problem.

Has anyone else had this problem recently ?  Looking at the Debian bug 
reports I saw a year-old report that looked kind of similar.

  Thanks for any insights!
-Frank

Re: software to do drawings of houses, gardens, etc.

[Cousin Stanley]

Emanuel Berg wrote:

>> Is there a piece of software that works
>> like gnuplot or pic/troff were you feed 
>> the program a script with instructions and data
>> and then the program generates the drawing?
>>  

   You might look at the Graphics Layout Engine 
   available under debian stretch  

 $ aot show gle-graphics

   GLE is a graphics scripting language designed 
   for creating publication quality figures 
   such as charts, plots, graphs, and diagrams. 

   It supports various chart types (including function plot, 
   histogram, bar chart, scatter plot, contour plot, color map, 
   and surface plot) through a simple but flexible set 
   of graphing commands ; 

   more complex output can be created by relying on i
   ts scripting language, which is full featured
   with subroutines, variables, and logic control.
 
 
   http://glx.sourceforge.net/
   Graphics Layout Engine - Home


   http://glx.sourceforge.net/examples/index.html
   Graphics Layout Engine - Examples



-- 
Stanley C. Kitching
Human Being
Phoenix, Arizona

Re: software to do drawings of houses, gardens, etc.

[Weaver]

On 2017-11-25 02:51, Cousin Stanley wrote:
> Emanuel Berg wrote:
> 
>>> Is there a piece of software that works
>>> like gnuplot or pic/troff were you feed
>>> the program a script with instructions and data
>>> and then the program generates the drawing?
>>> 
> 
>You might look at the Graphics Layout Engine 
>available under debian stretch  
> 
>  $ aot show gle-graphics
> 
>GLE is a graphics scripting language designed 
>for creating publication quality figures 
>such as charts, plots, graphs, and diagrams. 
> 
>It supports various chart types (including function plot, 
>histogram, bar chart, scatter plot, contour plot, color map, 
>and surface plot) through a simple but flexible set 
>of graphing commands ; 
> 
>more complex output can be created by relying on i
>ts scripting language, which is full featured
>with subroutines, variables, and logic control.
>  
>  
>http://glx.sourceforge.net/
>Graphics Layout Engine - Home
> 
> 
>http://glx.sourceforge.net/examples/index.html
>Graphics Layout Engine - Examples

And then there's Tikz, depending on what level of commitment you wish to
put into it.

http://www.texample.net/tikz/

-- 
"The optimist proclaims that we live in the best of all
possible worlds.  The pessimist fears this is true."

Registered Linux User: 554515

Re: p laptop with stretch/xfce: screen blanks but won't "wake up"

[John Cunningham]

FWIW, I have buster/xfce on a laptop and have the same problem. Backlight
is fine. I thought about the external monitor trick, too, but I haven't
tried it yet.

--John

On Fri, Nov 24, 2017 at 9:15 AM dekks herton  wrote:

> On 11/24, Jaime T wrote:
> >Hi all.
> >
> >I'm running stable (stretch)/xfce on an hp/compaq nx6110 laptop, and
> >when the screen blanks, I can't get it to wake up again (nothing
> >appears on the screen when I press the keys on the keyboard and move
> >the mouse).
> >
> >The closest debian bug report that I've seen is:
> >https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=787241
> >
> >although these other (non-debian) bug reports seem closer:
> >https://bugzilla.xfce.org/show_bug.cgi?id=11627
> >https://bugzilla.xfce.org/show_bug.cgi?id=12480
> >https://bbs.archlinux.org/viewtopic.php?id=194313
> >
> >The laptop is currently sitting there, powered on with a blank screen,
> >but I have a load of unsaved work on the desktop. I can ssh into it
> >and run commands on it. Does anyone know if there's anything that I
> >can do to wake the screen up so that I can save my work?
> >
> >Thank you, Jaime
> >
>
> Borrow an external monitor to save work?
>
> Are you sure the backlight hasn't died?
>
> --
> regards.
>
> Thinkpad T60p 2.33Ghz 2GB SXGA+
>
> Jabber IM: dekkz...@jabber.hot-chilli.net
>

Re: p laptop with stretch/xfce: screen blanks but won't "wake up"

[Cindy-Sue Causey]

On 11/24/17, John Cunningham  wrote:
> FWIW, I have buster/xfce on a laptop and have the same problem. Backlight
> is fine. I thought about the external monitor trick, too, but I haven't
> tried it yet.
>
> --John
>
> On Fri, Nov 24, 2017 at 9:15 AM dekks herton  wrote:
>
>> On 11/24, Jaime T wrote:
>> >Hi all.
>> >
>> >I'm running stable (stretch)/xfce on an hp/compaq nx6110 laptop, and
>> >when the screen blanks, I can't get it to wake up again (nothing
>> >appears on the screen when I press the keys on the keyboard and move
>> >the mouse).
>> >
>> >The closest debian bug report that I've seen is:
>> >https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=787241
>> >
>> >although these other (non-debian) bug reports seem closer:
>> >https://bugzilla.xfce.org/show_bug.cgi?id=11627
>> >https://bugzilla.xfce.org/show_bug.cgi?id=12480
>> >https://bbs.archlinux.org/viewtopic.php?id=194313
>> >
>> >The laptop is currently sitting there, powered on with a blank screen,
>> >but I have a load of unsaved work on the desktop. I can ssh into it
>> >and run commands on it. Does anyone know if there's anything that I
>> >can do to wake the screen up so that I can save my work?
>> >
>> >Thank you, Jaime
>> >
>>
>> Borrow an external monitor to save work?
>>
>> Are you sure the backlight hasn't died?
>>
>> --
>> regards.
>>
>> Thinkpad T60p 2.33Ghz 2GB SXGA+
>>
>> Jabber IM: dekkz...@jabber.hot-chilli.net


If and once you get back up, a thread not long ago reminded me about
"free -m". I've had odds and ends of problems like this blank screen
myself over time.

That goes back to me at least once writing about how I was sometimes
forced to reboot fresh... then the last previous session would come
back up in its entirety, e.g. browser open with last used tabs, text
editor with last multiple accessed files, etc. That was NOT expected
behavior on a fresh reboot. :)

With "free -m", I'm seeing inconsistencies in what comes in and out of
SWAP after mine goes into some level of sleep/hibernation. Sometimes
it will clear out completely, and other times almost nothing exits.
That "almost nothing exits" part makes me wonder how that might affect
waking back up into full functionality *sometimes*.

That's on a desktop PC box. I don't know if SWAP's role plays a part,
but the inconsistencies I'm seeing reflected in mine felt worth
mentioning... :)

Cindy :)
-- 
Cindy-Sue Causey
Talking Rock, Pickens County, Georgia, USA

* runs with duct tape *

Re: cups config for Brother HL-L2340DW

[Ben Caradoc-Davies]

On 24/11/17 21:20, Pierre Frenkiel wrote:

On Fri, 24 Nov 2017, Ben Caradoc-Davies wrote:
I use . I see an "Add Printer" and a 
"Manage Printers" button. I can click "Manage Printers" and select the 
printer. I can select "Administration" / "Modify Printer" in the 
dropdown menu

   As I said, I used either this method or system-config-printer,
   but your driver was not listed in the available drivers.


Not under "Generic"? I see my driver mentions "foomatic". I have installed:

foomatic-db-compressed-ppds


Are you in the cups group?

   Curiously, I don't have a cups group


Sorry, "lpadmin".

Kind regards,

--
Ben Caradoc-Davies 
Director
Transient Software Limited 
New Zealand

Re: cups config for Brother HL-L2340DW

[Pierre Frenkiel]

On Sat, 25 Nov 2017, Ben Caradoc-Davies wrote:


Not under "Generic"? I see my driver mentions "foomatic". I have installed:

foomatic-db-compressed-ppds


 thank you for this information, but this thread is now obsolete for me,
 as I returned the Brother to the seller, and can't then do any further testing.

best regards,
--
Pierre Frenkiel

Re: software to do drawings of houses, gardens, etc.

[Gary Roach]

On 11/24/2017 09:23 AM, Weaver wrote:

On 2017-11-25 02:51, Cousin Stanley wrote:

Emanuel Berg wrote:


Is there a piece of software that works
like gnuplot or pic/troff were you feed
the program a script with instructions and data
and then the program generates the drawing?



You might look at the Graphics Layout Engine
available under debian stretch 

  $ aot show gle-graphics

GLE is a graphics scripting language designed
for creating publication quality figures
such as charts, plots, graphs, and diagrams.

It supports various chart types (including function plot,
histogram, bar chart, scatter plot, contour plot, color map,
and surface plot) through a simple but flexible set
of graphing commands ;

more complex output can be created by relying on i
ts scripting language, which is full featured
with subroutines, variables, and logic control.
  
  
http://glx.sourceforge.net/

Graphics Layout Engine - Home


http://glx.sourceforge.net/examples/index.html
Graphics Layout Engine - Examples


And then there's Tikz, depending on what level of commitment you wish to
put into it.

http://www.texample.net/tikz/

I'm surprised that no one has mentioned FreeCAD in this whole 
discussion. It is my goto for any cad work. It has an architecture 
workbench, is under heavy development and is reasonably intuitive. It 
will be in your distro. just apt-get install freecad. It also handles 
AutoCAD files among quite a few others.


Gary R

NFS client and untrusted server

[Chris]

All,

I want to backup a DMZ-server to an internal backup server.

Is it reasonable to setup an NFS-server in the DMZ and mount it from
the inside server using the read-only, noexec and nosuid options? Could
an attacker gain access to the internal server this way?

Does anyone use such a setup?

internal Server ---> DMZ
(NFS-Client)(NFS-Server)

- Chris

Re: firefox cannot download after jessie->stretch

[dekks herton]

On 11/24, Frank Miles wrote:

firefox/iceweasel has worked just fine for years

I just upgraded my home jessie machine to stretch.  That went very
smoothly, so far only one exception.  I can no longer download anything
with this browser.  I've reinstalled, cleared out my profile, run in
'safe' mode (no add-ons such as no-script).  I've tried other
destinations, including "ask me" (it never asks).  I only get the
truncated error message:
  "could not be saved, because you cannot change the contents of that
folder."

Turned off my firewall - no change.  Tried downloading from other sources,
no change.

Epiphany downloads the same files with no problem.

Has anyone else had this problem recently ?  Looking at the Debian bug
reports I saw a year-old report that looked kind of similar.

 Thanks for any insights!
   -Frank



Where is it trying to save to and what are the file permissions for that 
location.

--
regards.

Thinkpad T60p 2.33Ghz 2GB SXGA+

Jabber IM: dekkz...@jabber.hot-chilli.net


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Re: NFS client and untrusted server

[Roberto C . Sánchez]

On Fri, Nov 24, 2017 at 10:28:27PM +0100, Chris wrote:
> All,
> 
> I want to backup a DMZ-server to an internal backup server.
> 
> Is it reasonable to setup an NFS-server in the DMZ and mount it from
> the inside server using the read-only, noexec and nosuid options? Could
> an attacker gain access to the internal server this way?
> 
> Does anyone use such a setup?
> 
> internal Server ---> DMZ
> (NFS-Client)  (NFS-Server)
> 
NFS is a very old protocol that very likely has as yet undiscovered
vulnerabilities.  I would expect that the likelihood of there being even
a theoretical vulnerability that would allow a malicous user on the
server to gain access to a client would be very low.

However, I think you are going about this all wrong.  A backup script or
program would have to touch/examine every file to determine its age, MD5
sum, or whatever other feature drives the backup/no-backup decision.
NFS is actually a terrible protocol for this sort of thing.

You are almost certainly better off creating a backup user on the DMZ
machine, setting its shell to something like rsync-only (check out the
rssh package, for example), and then using something like rsnapshot (my
personal favorite) or another rsync-based backup script/program.

That is likely to be more secure and I can practically guarantee it will
have better performance.

Regards,

-Roberto

-- 
Roberto C. Sánchez

Re: NFS client and untrusted server

[Chris]

On Fri, 24 Nov 2017 21:44:56 -0500
Roberto C. Sánchez wrote:

> NFS is a very old protocol that very likely has as yet undiscovered
> vulnerabilities.  I would expect that the likelihood of there being
> even a theoretical vulnerability that would allow a malicous user on
> the server to gain access to a client would be very low.

Ok. I wasn't sure because it seems rather complex with all this RPC
stuff.

> However, I think you are going about this all wrong.  A backup script
> or program would have to touch/examine every file to determine its
> age, MD5 sum, or whatever other feature drives the backup/no-backup
> decision. NFS is actually a terrible protocol for this sort of thing.

Ok, [1] for example says it's factor two compared to iSCSI.
 
> That is likely to be more secure and I can practically guarantee it
> will have better performance.

That's probably better. I was thinking about NFS because I don't have
enough disks on the backup server. Those files should go to tape.

Thank you for your quick reply!

- Chris


[1]
https://www.usenix.org/legacy/publications/library/proceedings/fast04/tech/full_papers/radkov/radkov_html/head.html