[Box-Admins] squeaksource.com

David T. Lewis lewis at mail.msen.com
Sun Mar 26 15:04:32 UTC 2017

On Sun, Mar 26, 2017 at 02:09:45PM +0200, Levente Uzonyi wrote:
> Hi Dave,
> it should work without enabling remote connections if you create an 
> ssh tunnel to dan instead of ian.
> Levente

I think that is what I am doing. Just to be clear, I do this:

  lewis at lewis-Gazelle-Pro:~$ ssh -L5901:localhost:5901 dan.box.squeak.org
  The programs included with the Debian GNU/Linux system are free software;
  the exact distribution terms for each program are described in the
  individual files in /usr/share/doc/*/copyright.
  Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
  permitted by applicable law.
  Last login: Sun Mar 26 14:19:37 2017 from
  davidlewis at dan:~$ sudo su - squeaksourcecom
  [sudo] password for davidlewis: 
  squeaksourcecom at dan:~$ pgrep -l squeakvm
  9388 squeakvm
  squeaksourcecom at dan:~$ kill -SIGUSR2 9388
  squeaksourcecom at dan:~$ # keep this connection open until the VMC connection is made
  squeaksourcecom at dan:~$ exit

While the ssh connection is active, I use a VNC client to connect to
localhost:1 which is port 5901 forwarded to dan.box.squeak.org, and
then I enter the password for the VNC connection.


> On Sat, 25 Mar 2017, David T. Lewis wrote:
> >On Fri, Mar 24, 2017 at 07:44:35PM -0400, David T. Lewis wrote:
> >>
> >>VNC and mail from the squeaksource image do not work any more. The VNC used to
> >>work on dan.box.squeak.org but not now, possibly something changed in network
> >>configuration that the ancient image does not handle right. The stuck process
> >>that caused the failure seems to fail on an error that tries to send mail to
> >>inform someone of the problem, which fails because smtp does not work because
> >>of network address resolution, which fails and throws an error that tries to
> >>send more mail, etc.
> >>
> >
> >I am somewhat embarassed to admit that I just fixed the "broken VNC" 
> >problem
> >by clicking the "enable remote connections" checkbox in the RFBServer. 
> >Apparently
> >I accidentally left it disabled the last time I restarted the image.
> >
> >VNC access to the squeaksource.com image works again, as explained in
> >dan.box.squeak.org:/srv/squeaksourcecom/README. Log in to dan.box.squeak.org,
> >send SIGUSR2 to the VM process, then connect from your VNC localhost:1 connection
> >within 60 seconds of the SIGUSR2 (after setting up the port forwarding to dan).
> >Use the VNC password that is mentioned in the README.
> >
> >This is probably way too many layers of security now that we have the port
> >forwarding set up on Rackspace, so maybe I should get rid of that requirement
> >to send a SIGUSR2 to enable RFBServer. Leaving VNC running all the time would
> >probably be fine. But maybe later, I will not change it now.
> >
> >Dave
> >
> >

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