<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
</head>
<body text="#000000" bgcolor="#FFFFFF">
<br>
<div class="moz-cite-prefix">On 01-Dec-17 17:07, Dan Gahlinger
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:BL2PR16MB100982B260CA143A9289399DC9390@BL2PR16MB1009.namprd16.prod.outlook.com">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<meta content="text/html; charset=utf-8">
<div>a pi would do it.</div>
<div>and it's not opening it up</div>
<div>you open to just one port to just that pi</div>
<div>for just the pps</div>
<div><br>
</div>
</blockquote>
Not quite that simple. To expand on what I wrote previously:
Typically, machines inside your router trust each other. In that
case, once on the Pi (or SimH guest), a user has access to anything
else on your internal network, unless you setup the right firewalls
on each of your other internal machines. With a little care, it's
not hard to setup a subnet for the Pi & emulated machines that
everyone else can distrust.<br>
<br>
E.g. You open an ssh port to your Pi. A user who ssh's to that Pi
now has a local address, and can ssh to your desktop - or browse for
Windoze/NFS shares - or whatever. So you need to adjust the
firewall on your desktop to be very careful about what it permits
from the Pi. (And guests on the Pi.)<br>
<br>
It takes some thought to setup a moat around the Pi, but isn't
especially hard. It does require a change in mindset from
"everything inside my router is more trustworthy than the outside"
to "inside my router is no guarantee, and access is case-by-case."<br>
<br>
Note that the network stacks on the Guests probably haven't been
updated in a few decades, so while they will interoperate, they may
have exploitable bugs. (Exploits never completely die...)<br>
<br>
<br>
<blockquote type="cite"
cite="mid:BL2PR16MB100982B260CA143A9289399DC9390@BL2PR16MB1009.namprd16.prod.outlook.com">
<div>
</div>
<div>electric cost of a pi is peanuts.</div>
<div><br>
</div>
<div>cloud would cost you orders of magnitude more.</div>
<div><br>
</div>
<div>hell I run my own servers domain cloud etc</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div id="composer_signature">
<div dir="auto" style="font-size:85%; color:#575757">Sent from
my Samsung Galaxy smartphone.</div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>-------- Original message --------</div>
<div>From: Joseph Oprysko <a class="moz-txt-link-rfc2396E" href="mailto:joprysko1@gmail.com"><joprysko1@gmail.com></a> </div>
<div>Date: 2017-12-01 2:37 PM (GMT-05:00) </div>
<div>To: Dan Gahlinger <a class="moz-txt-link-rfc2396E" href="mailto:dgahling@hotmail.com"><dgahling@hotmail.com></a> </div>
<div>Cc: Ray Jewhurst <a class="moz-txt-link-rfc2396E" href="mailto:raywjewhurst@gmail.com"><raywjewhurst@gmail.com></a>, simh
<a class="moz-txt-link-rfc2396E" href="mailto:simh@trailing-edge.com"><simh@trailing-edge.com></a> </div>
<div>Subject: Re: [Simh] C9.io </div>
<div><br>
</div>
<div>
<div>
<div dir="auto">Dan, it is easy peasy, but not quite free, as
if you want 24/7 access to the box, you have to keep the
system running 24-7, so electricity costs. Plus, I’m
planning on having others log in as well, thus I don’t want
to open up my network like that. That’s why I’m looking for
a free hosted/Cloud solution. That way someone else can deal
with the rest of the network security. I do enough of that
for work anyway, don’t want to have to monitor my home
network as thoroughly. </div>
<br>
<div class="gmail_quote">
<div>On Fri, Dec 1, 2017 at 1:12 PM Dan Gahlinger <<a
href="mailto:dgahling@hotmail.com"
moz-do-not-send="true">dgahling@hotmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;
border-left:1px #ccc solid; padding-left:1ex">
<div>
<div id="m_2360956588935594338compose-container"
style="direction:ltr"><span><span></span></span>
<div>
<div>
<div style="direction:ltr">A Linux box running
simh bridged with nat</div>
<div style="direction:ltr">Easy peasy and free</div>
</div>
<div><br>
</div>
<div class="m_2360956588935594338acompli_signature">Get
<a href="https://aka.ms/o0ukef" target="_blank"
moz-do-not-send="true">
Outlook for iOS</a></div>
</div>
</div>
<hr style="display:inline-block; width:98%">
<div id="m_2360956588935594338divRplyFwdMsg"><font
style="font-size:11pt" face="Calibri, sans-serif"
color="#000000"><b>From:</b> Simh <<a
href="mailto:simh-bounces@trailing-edge.com"
target="_blank" moz-do-not-send="true">simh-bounces@trailing-edge.com</a>>
on behalf of Joseph Oprysko <<a
href="mailto:joprysko1@gmail.com" target="_blank"
moz-do-not-send="true">joprysko1@gmail.com</a>><br>
<b>Sent:</b> Friday, December 1, 2017 1:09:37 PM<br>
<b>To:</b> Ray Jewhurst<br>
<b>Cc:</b> simh<br>
<b>Subject:</b> Re: [Simh] C9.io</font>
<div> </div>
</div>
</div>
<div>
<div>
<div>
<div dir="auto">Well, running from inside a house
and making accessible from the outside is easy.
But most ot my computers at home generally don’t
run 24/7. </div>
<div dir="auto"><br>
</div>
<div dir="auto">Mainly what’s needed for what we
both want to be able to do isn’t really a shell
account on a shared machine, but literally a
dedicated VM instance, but we need to be able to
access that instance through a public IP address.</div>
<div dir="auto"><br>
</div>
<div dir="auto">On a home network, a private IP
Address (192.168.x.x, 172.x.x.x ‘actually I don’t
think it’s the whole 172 network’, or a 10.x.x.x)
it’s easy enough to setup port forwarding to make
it accessible. But on the Cloud based VM’s, I
don’t know if there is a way to do it. Well, I
know there ARE ways, usually involves paying for
the instance, an external address, and possibly
the amount of traffic. </div>
<div dir="auto"><br>
</div>
<div dir="auto">Actually, I know Bluehost (is it
still a thing?) used to give you a VM with public
address in combination with their hosting/domain
name service. But I’m hoping to find one that
will not cost me anything. </div>
<br>
<div class="gmail_quote">
<div>On Fri, Dec 1, 2017 at 12:21 PM Ray Jewhurst
<<a href="mailto:raywjewhurst@gmail.com"
target="_blank" moz-do-not-send="true">raywjewhurst@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0
0 .8ex; border-left:1px #ccc solid;
padding-left:1ex">
<div dir="auto">I have been trying to figure out
a solution for something similar to that. I
want to be able to run a PDP-11 outside of my
house for Fortran development. I would be
running it on my Android phone. </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">
<div class="gmail_quote">On Dec 1, 2017 12:11
PM, "Joseph Oprysko" <<a
href="mailto:joprysko1@gmail.com"
target="_blank" moz-do-not-send="true">joprysko1@gmail.com</a>>
wrote:<br type="attribution">
</div>
</div>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote
class="m_2360956588935594338m_-8260937938224374215quote"
style="margin:0 0 0 .8ex; border-left:1px
#ccc solid; padding-left:1ex">
<div dir="auto">Does anyone know if I can
use the Cloud9 IDE to host a simh System
emulation?</div>
<div dir="auto"><br>
</div>
<div dir="auto">I know I’m able to build
and execute it in the environment, but
what I’d really like to achieve is to
have a system (or several) running on
various instances. And be able to
connect to them from an external IP
address, I believe I am able to SSH into
an instance, or access it through the
web based IDE. </div>
<div dir="auto"><br>
</div>
<div dir="auto">An example might be
better. Say I setup an HP system running
Time-Share Basic. Would I be able to
telnet to the TSB instance from various
computers?</div>
<div dir="auto"><br>
</div>
<div dir="auto">Thank you,</div>
<div dir="auto"><br>
</div>
<div dir="auto">Joe</div>
<font color="#888888">
<div>-- <br>
</div>
<div
class="m_2360956588935594338m_-8260937938224374215m_6590601365037331845gmail_signature">Normal
Person: Hey, it seems that you know a
lot.<br>
Geek: To be honest, it's due to all
the surfing I do.<br>
Normal Person: So you go surfing?<br>
Normal Person: But I don't think that
has anything to do with knowing a
lot...<br>
Geek: I think that's wrong on a
fundamental level.<br>
Normal Person: Huh? Huh? What?</div>
</font><br>
</blockquote>
</div>
</div>
<div class="gmail_extra">
<div class="gmail_quote">
<blockquote
class="m_2360956588935594338m_-8260937938224374215quote"
style="margin:0 0 0 .8ex; border-left:1px
#ccc solid; padding-left:1ex">
_______________________________________________<br>
Simh mailing list<br>
<a href="mailto:Simh@trailing-edge.com"
target="_blank" moz-do-not-send="true">Simh@trailing-edge.com</a><br>
<a
href="http://mailman.trailing-edge.com/mailman/listinfo/simh"
rel="noreferrer" target="_blank"
moz-do-not-send="true">http://mailman.trailing-edge.com/mailman/listinfo/simh</a><br>
</blockquote>
</div>
<br>
</div>
</blockquote>
</div>
</div>
<div>-- <br>
</div>
<div class="m_2360956588935594338gmail_signature">Normal
Person: Hey, it seems that you know a lot.<br>
Geek: To be honest, it's due to all the surfing I
do.<br>
Normal Person: So you go surfing?<br>
Normal Person: But I don't think that has anything
to do with knowing a lot...<br>
Geek: I think that's wrong on a fundamental level.<br>
Normal Person: Huh? Huh? What?</div>
</div>
</div>
</blockquote>
</div>
</div>
<div dir="ltr">-- <br>
</div>
<div class="gmail_signature">Normal Person: Hey, it seems that
you know a lot.<br>
Geek: To be honest, it's due to all the surfing I do.<br>
Normal Person: So you go surfing?<br>
Normal Person: But I don't think that has anything to do with
knowing a lot...<br>
Geek: I think that's wrong on a fundamental level.<br>
Normal Person: Huh? Huh? What?</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
Simh mailing list
<a class="moz-txt-link-abbreviated" href="mailto:Simh@trailing-edge.com">Simh@trailing-edge.com</a>
<a class="moz-txt-link-freetext" href="http://mailman.trailing-edge.com/mailman/listinfo/simh">http://mailman.trailing-edge.com/mailman/listinfo/simh</a></pre>
</blockquote>
<br>
</body>
</html>