<div dir="auto">The networking shouldn't be a problem since I only want to use my cellphone as a telnet client. </div><div class="gmail_extra"><br><div class="gmail_quote">On Dec 1, 2017 3:47 PM, "Timothe Litt" <<a href="mailto:litt@ieee.org">litt@ieee.org</a>> wrote:<br type="attribution"><blockquote class="quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
  
    
  
  <div text="#000000" bgcolor="#FFFFFF">
    <p>Xeon etc is probably overkill.<br>
    </p>
    <p>Use a Raspberry Pi.  About 7W under load with a monitor, KB,
      mouse w/WiFi active - you don't need a monitor, KB, or mouse once
      setup.  You can disable the WiFi. (A couple more watts if you use
      a magnetic drive, which I recommend).</p>
    <p>One time cost is about $100 once you add a case, power supply
      & SD card to the $35 board.</p>
    <p>For a reasonable workload, that should suffice and is about as
      inexpensive to run as you can get.  Pi 3 is a 64-bit ARM CPU @1.2
      GHz CPU - with 1GB memory, ethernet, WiFi, & bluetooth. (Some 
      OSs are only 32 bit at the moment.)  You can easily scale up with
      multiple hosts - it takes quite a number to reach the price of a
      Xeon.<br>
    </p>
    <p>If you stick with standard packages, security is pretty much
      one-time setup & periodic package updates (which includes the
      kernel).  As it's cheap enough to be dedicated to simulation, it's
      not a disaster if something bad does happen - as long as anything
      else on your internal network distrusts the Pi & its guests. 
      If you put the emulated OS on the public network, that's a bigger
      exposure than the host OS.</p>
    <p>If you just provide SSH access, I recommend disabling passwords
      and using RSA keys only.  It frustrates the script kiddies, and
      you don't have to worry about password quality.</p>
    <p>Cloud hosting has its own pitfalls.  I'm not a fan.</p>
    <p>Someone mentioned running on a cellphone.  That's tough if you
      want remote access because as frequently documented here, WiFi
      implementations don't get along with SimH's networking.</p>
    <p>Have fun.<br>
    </p><div class="elided-text">
    <pre class="m_7251669931184819728moz-signature" cols="72">
</pre>
    <div class="m_7251669931184819728moz-cite-prefix">On 01-Dec-17 15:09, Hittner, David T
      [US] (MS) wrote:<br>
    </div>
    <blockquote type="cite">
      
      
      
      
      <div class="m_7251669931184819728WordSection1">
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">You
            could also look at running a super-efficient 24x7 server at
            home to minimize your electric costs.<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">In
            my last computer build where I was trying to maximize
            performance with minimal power use, I put together an E3
            Xeon Server with ECC memory that pulls an average of 35W
            running a SIMH VM with idle enabled.<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">It’s
            all based on buying power efficient equipment. It runs near
            noiseless and cool also.<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Intel
            Xeon E3-1275v3 3.5GHz 4C with Integrated graphics (which is
            fine for a server). Max 84W.<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">32GB
            ECC memory (overkill for SIMH, but I do other things with
            the server  :-)<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">500GB
            M.2 NVME SSD<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">1TB
            2.5” HDD<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">5.25”
            BLU-Ray ODD<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">80+
            Gold PSU<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Windows
            10 Pro OS (for host)<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">VMware
            Workstation for virtualization, although you could use the
            built in Windows 10 Hyper-V virtualization for free<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">2.5”
            disk drives and SSDs pull a lot less power than their
            rotating 3.5” equivalents. So does using Integrated graphics
            vs. discrete video cards if the performance is OK.<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Your
            point about having others manage the network security is
            pretty darn valid though !!<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d">Dave<u></u><u></u></span></p>
        <p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1f497d"><u></u> <u></u></span></p>
        <p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">
            Simh [<a class="m_7251669931184819728moz-txt-link-freetext" href="mailto:simh-bounces@trailing-edge.com" target="_blank">mailto:simh-bounces@trailing-<wbr>edge.com</a>]
            <b>On Behalf Of </b>Joseph Oprysko<br>
            <b>Sent:</b> Friday, December 01, 2017 2:37 PM<br>
            <b>To:</b> Dan Gahlinger <a class="m_7251669931184819728moz-txt-link-rfc2396E" href="mailto:dgahling@hotmail.com" target="_blank"><dgahling@hotmail.com></a><br>
            <b>Cc:</b> simh <a class="m_7251669931184819728moz-txt-link-rfc2396E" href="mailto:simh@trailing-edge.com" target="_blank"><simh@trailing-edge.com></a><br>
            <b>Subject:</b> EXT :Re: [Simh] C9.io<u></u><u></u></span></p>
        <p class="MsoNormal"><u></u> <u></u></p>
        <div>
          <div>
            <p class="MsoNormal">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. <u></u><u></u></p>
          </div>
          <p class="MsoNormal"><u></u> <u></u></p>
          <div>
            <div>
              <p class="MsoNormal">On Fri, Dec 1, 2017 at 1:12 PM Dan
                Gahlinger <<a href="mailto:dgahling@hotmail.com" target="_blank">dgahling@hotmail.com</a>>
                wrote:<u></u><u></u></p>
            </div>
            <blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
              <div>
                <div id="m_7251669931184819728m_2360956588935594338compose-container">
                  <div>
                    <div>
                      <div>
                        <p class="MsoNormal">A Linux box running simh
                          bridged with nat<u></u><u></u></p>
                      </div>
                      <div>
                        <p class="MsoNormal">Easy peasy and free<u></u><u></u></p>
                      </div>
                    </div>
                    <div>
                      <p class="MsoNormal"><u></u> <u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal">Get <a href="https://aka.ms/o0ukef" target="_blank">Outlook for iOS</a><u></u><u></u></p>
                    </div>
                  </div>
                </div>
                <div class="MsoNormal" style="text-align:center" align="center">
                  <hr size="3" align="center" width="98%">
                </div>
                <div id="m_7251669931184819728m_2360956588935594338divRplyFwdMsg">
                  <p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:black">
                      Simh <<a href="mailto:simh-bounces@trailing-edge.com" target="_blank">simh-bounces@trailing-edge.<wbr>com</a>>
                      on behalf of Joseph Oprysko <<a href="mailto:joprysko1@gmail.com" target="_blank">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</span> <u></u><u></u></p>
                  <div>
                    <p class="MsoNormal"> <u></u><u></u></p>
                  </div>
                </div>
              </div>
              <div>
                <div>
                  <div>
                    <div>
                      <p class="MsoNormal">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. <u></u><u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal"><u></u> <u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal">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.<u></u><u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal"><u></u> <u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal">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. <u></u><u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal"><u></u> <u></u></p>
                    </div>
                    <div>
                      <p class="MsoNormal">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. <u></u><u></u></p>
                    </div>
                    <p class="MsoNormal"><u></u> <u></u></p>
                    <div>
                      <div>
                        <p class="MsoNormal">On Fri, Dec 1, 2017 at
                          12:21 PM Ray Jewhurst <<a href="mailto:raywjewhurst@gmail.com" target="_blank">raywjewhurst@gmail.com</a>>
                          wrote:<u></u><u></u></p>
                      </div>
                      <blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
                        <div>
                          <p class="MsoNormal">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. <u></u><u></u></p>
                        </div>
                        <div>
                          <p class="MsoNormal"><u></u> <u></u></p>
                        </div>
                        <div>
                          <div>
                            <p class="MsoNormal">On Dec 1, 2017 12:11
                              PM, "Joseph Oprysko" <<a href="mailto:joprysko1@gmail.com" target="_blank">joprysko1@gmail.com</a>>
                              wrote:<u></u><u></u></p>
                          </div>
                        </div>
                        <div>
                          <div>
                            <blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
                              <div>
                                <p class="MsoNormal">Does anyone know if
                                  I can use the Cloud9 IDE to host a
                                  simh System emulation?<u></u><u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><u></u> <u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal">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. <u></u><u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><u></u> <u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal">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?<u></u><u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><u></u> <u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal">Thank you,<u></u><u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><u></u> <u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal">Joe<u></u><u></u></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><span style="color:#888888">-- <u></u><u></u></span></p>
                              </div>
                              <div>
                                <p class="MsoNormal"><span style="color:#888888">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?<u></u><u></u></span></p>
                              </div>
                              <p class="MsoNormal"><u></u> <u></u></p>
                            </blockquote>
                          </div>
                        </div>
                        <div>
                          <div>
                            <blockquote style="border:none;border-left:solid #cccccc 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
                              <p class="MsoNormal">______________________________<wbr>_________________<br>
                                Simh mailing list<br>
                                <a href="mailto:Simh@trailing-edge.com" target="_blank">Simh@trailing-edge.com</a><br>
                                <a href="http://mailman.trailing-edge.com/mailman/listinfo/simh" target="_blank">http://mailman.trailing-edge.<wbr>com/mailman/listinfo/simh</a><u></u><u></u></p>
                            </blockquote>
                          </div>
                          <p class="MsoNormal"><u></u> <u></u></p>
                        </div>
                      </blockquote>
                    </div>
                  </div>
                  <div>
                    <p class="MsoNormal">-- <u></u><u></u></p>
                  </div>
                  <div>
                    <p class="MsoNormal">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?<u></u><u></u></p>
                  </div>
                </div>
              </div>
            </blockquote>
          </div>
        </div>
        <div>
          <p class="MsoNormal">-- <u></u><u></u></p>
        </div>
        <div>
          <p class="MsoNormal">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?<u></u><u></u></p>
        </div>
      </div>
      <br>
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