Re: [Simh] VMS multinet DHCLIENT/SSH2 configuration problem

[Tim Stark]

Folks,

 

Thanks for info.  I figured out and have to put 'define/system/exec
multinet_dhcp_client "1"' before start_multinet script. 

It now worked fine but interfaces are still not updated (no effect).
Installation guide did not mention that.

 

I now have another problem.

 

I have some problem with @configure setup.  When I put 0.0.0.0 as default IP
address and execute dhclient.

I think that @configure is for manual settings with static IP address only
but I want automated settings with DHCP client.

 

After dhclient was executed, it successfully got correct settings (according
to log files) from my fios router but it still display 0.0.0.0 on SHOW NET
and MULTINET CONFIGURE /INTERFACE (show command).

 

I tried to execute @dhclient-script.com and it verbosely did set settings
properly but SHOW NETWORKS still display 0.0.0.0.

 

Does anyone know any solution?

 

Thanks,

Tim 

 

From: Hunter Goatley [mailto:goathun...@goatley.com] 
Sent: Sunday, January 28, 2018 1:45 PM
To: Tim Stark ; simh@trailing-edge.com
Subject: Re: [Simh] VMS multinet DHCLIENT/SSH2 configuration problem

 

On 1/28/2018 12:08 PM, Tim Stark wrote:

Folks,

 

I tried to configure DHCLIENT for DHCP access from my FIOS gateway router
but DHCLIENT crashed during boot time and complaint undefined symbol in API
libraries. 

 

Also I am figuring out how to set SSH2 terminal server. I successfully
generated SSH2 keys on emulated SIMH VAX system.

 

Does anyone know good DHCLIENT and SSH2 configuration instructions for
OpenVMS 7.3 and Multinet 5.5?


SSH2 is covered in the MultiNet Installation and Administration Guide:

http://www.process.com/docs/multinet5_5/install_admin/chapter_28.htm

There's also an FAQ here:

http://www.process.com/support/multinet/faq/ssh.html

The DHCP client is documented here:

http://www.process.com/docs/multinet5_5/install_admin/chapter_16.htm

--
Hunter
--
Hunter Goatley, Process Software, http://www.process.com/
goathun...@goatley.com  
 
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[Simh] scanning while hanging below [was:best way to scan 172 column fanfold 80s printout?]

[Carey Tyler Schug]

Hanging below may be best idea on this sub-thread.  Hanging below one 
could BACK LIGHT the paper, which would make even lighting much more 
easy.  A milky white piece of glass with several lights behind it, where 
if they were in front they would block the camera.  It would require 
compensation for the green bar fanfold, but maybe greenish lights would 
help that?



On 02/11/2018 02:10 PM, Timothe Litt wrote:


On 11-Feb-18 14:29, Davis Johnson wrote:
I think what you need is a wide carriage printer with the typical 
feed up through a slot in the bottom, and a camera.


The only working function needed from the printer is form feed. 
Photograph the page that is hanging below the printer, form feed and 
repeat.


Anybody here ought to be able to handle the programming to automate 
this process.


You would need to manually photograph the first page.

The camera would need good depth of field.


It's not that simple.  You need to deal with at least 2 common 
vertical pitches (6 & 8 LPI), and a number of page lengths (and 
widths).  These need to be setup per job; not all printers support all 
these.  Plus, misalignment (as Al noted, crossing the perforations at 
the bottom of a page is quite common).  The OP mentioned that his 
listings have a hard crease; this will cause (at least) feed and 
stacking problems.  Form feed causes a high-speed slew; this becomes 
less reliable as the distance moved increases.  You're proposing an 
entire page at a time - which means that the paper will jump off the 
tractors frequently.[1] Old paper is fragile.  Over hundreds of pages, 
dimensions may not be stable; it was not uncommon to have to re-adjust 
TOF after a while.  There's a fair bit of error detection and recovery 
to work out.


Lighting is an issue, as is compensating for keystoning and other 
misalignments.  Most cameras don't have a standard remote trigger 
interface - one of the pointers I provided loads modified firmware 
into cameras from one manufacturer to make this work.  If you look at 
digital camera reviews, you'll see that the lenses have varying 
degrees of artifacts, especially at the edges.  So you need to find 
and zoom to an area that's relatively "flat" & doesn't need a lot of 
correction.  While depth of field will help, it also will result in 
apparent font size changes as paper sways forward and back.  If you 
stop that, you simplify the OCR - and don't need as much depth of field.


There are many backgrounds that need to be subtracted for OCR to 
work.  (Printer paper was notorious for institutional logos, as well 
as bars and other aids to human readers.)  Then there are the other 
issues mentioned in my earlier note.


It seems simple, but it is a P.roject.  That's a capital P. With a lot 
of roject to work out.


It's worthwhile, but it's not simple.  It's a pretty interesting 
hardware (and software) project.  I don't mean to discourage anyone 
who wants to work on it - but you need to go in with eyes open, or 
you'll end up very, very frustrated.


Thunderscan tried to scan line by line & retrieve grayscale; the 
challenges were piecing together the adjacent lines with pixel 
resolution.   The focal distance was constant because the camera was 
on a carriage.  The idea here is to capture a page per frame.  So the 
registration problems are quite different.  One could try the 
thunderscan approach; it would trade one set of problems xxx 
"challenges and opportunities" for another.


[1] In my experience, with many brands and models of tractor feed 
printers over many years.  Paper handling is really difficult to get 
right.

http://mailman.trailing-edge.com/mailman/listinfo/simh


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Re: [Simh] best way to scan 172 column fanfold 80s printout?

[Carey Tyler Schug]

Here in the Chicago suburb of Des Plaines the public library has an 
11x17 scanner available for free (flatbed).  Scan your pages, then email 
them to yourself.  Don't even need a library card.  It is a prepackaged 
service they buy so I am sure many other libraries have it too.

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