[Simh] tops-10/20 question about telnet etc.

Johan jdmail at zeelandnet.nl
Mon Feb 17 12:49:33 EST 2014


That was what I was afraid for!.
Is this possible to so in TOPS ? I have no idea, can you guide me a bit ?

Johan

-----Oorspronkelijk bericht-----
Van: simh-bounces at trailing-edge.com [mailto:simh-bounces at trailing-edge.com]
Namens Johnny Eriksson
Verzonden: maandag 17 februari 2014 19:19
Aan: 'SIMH'
Onderwerp: Re: [Simh] tops-10/20 question about telnet etc.

"Johan" <jdmail at zeelandnet.nl> wrote:

> Gentlemen,
> 
> As a beginner with TOPS-10, and TOPS 20 I have a question.
> If I connect over telnet to either one of them, and disconnect (so NOT 
> using KJOB in TOPS-10) and reconnect, I have my session as I left it.
> When someone else connects, do they see the running session also or 
> remembers the operating system the IP address ?
> If not then its insecure to connect it to the internet, what I want so 
> my friend and I can play with it together.
> Or did I miss something ?

You are telnetting into SIMH, not into TOPS-x0.  Therefore TOPS does not
have any idea of your IP address for instance.

Anyway, the behaviour depends on if the terminal lines that SIMH connects
the incoming TCP connection to is configured as a modem line or not.  I
think that TOPS by default assumes directly connected terminals and
therefore ignores the loss of carrier that results from closing the TCP
connection.

If the terminal lines are configured with modem control, the job should be
detached.

> Simh is been setup with att dz -am 2020

Correct, but TOPS must know about this as well.

> Johan

--Johnny

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