Hi Dave,

Thanks for providing the instructions. I just tried them on Squeak6.1alpha-22300-64bit on macOS 12.6.1.

When loading update.sscom-dtl.5.mcm two modal dialogs are shown:

I entered admin and password. Then I get this:

Any idea what I might be missing?

Cheers,
Bernhard

> Am 03.12.2022 um 22:03 schrieb David T. Lewis <lewis at mail.msen.com>:
>
> During a recent board discussion, Tim asked about experiences in using VNC
> to control server images. There are various ways to do this, but here is how
> it is done for the https://squeaksource.com server. The easiest way to see
> how it works is to try it out on your own computer, so here is what to do:
>
> - Start with a fresh Squeak image.
> - Open a Monticello Browser, and add repository http://source.squeak.org/ss.
> - Open the repository and navigate to category update.sscom.
> - Select update.sscom-dtl.5.mcm and load it.
>
> When loading is complete, you will see a notifier saying that SqueakSource
> is running on port 8888, as well as a pinnable morph for controlling the
> RFBServer (for VNC connections).
>
> Pin the RFB control morph so that it stays active. If you close it by
> accident, do "RFBServer menu openInWorld" to get it back.
>
> Save the image once and restart it to make sure the startup initialization
> is working.
>
> You can now open a web browser on http://localhost:8888 to connect to
> the SqueakSource web interface. Only one account will be present in the
> repository, this is your administrative user with user name 'admin' and
> password 'password'. Changing that password (from the web interface) is
> a good idea.
>
> The following will work only on Unix/Linux/OSX:
>
> In the RFBServer menu, in the passwords menu, select "allow empty passwords"
>
> In a terminal window (outside of Squeak), identify the pid of the Squeak VM
> process (pgrep -l squeak).
>
> From the terminal, send a SIGUSR2 signal to the VM process. If the Squeak
> VM pid is 1234, then the command is "kill -SIGUSR2 1234".
>
> Back in the Squeak image, you will see the VNC control change from
> "RFBServer (stopped)" to "RFBServer :1" to indicate that it is accepting
> VNC connections on display number 1. It will stay in this state for the
> next 60 seconds.
>
> From a VNC client program running on the local machine, connect to
> localhost:1, and you should have an active connection to the Squeak image.
>
> If you want to run your SqueakSource image on another server, run the
> VM with -vm-display-null and use ssh port forwarding if needed to access
> the VNC ports.
>
> For example, I have a unix account on the server that hosts squeaksource.com.
> When I want to open the running SqueakSource image through VNC, I first
> log in to the Linux server with a command like this (except that 10.1.2.3
> is not the real address that we are using).
>
> $ ssh -L8888:localhost:8888 -L5900:localhost:5900 -L5901:localhost:5901 10.1.2.3
>
> Once logged in, I locate the Squeak VM process and send SIGUSR2 to it. I keep
> the login session open to handle the port forwarding while I use VNC.
>
> Then back on my local computer, I open a VNC connection to localhost:1 to
> get a connection to the running image. This step needs to be done within 60
> seconds of the SIGUSR2, after than no further connections will be accepted.
>
> I used to use a VNC password (settable from the RFBServer menu) but I decided
> that it was too much hassle given the 60 second connection enablement window,
> which can only be started by someone with login access to the server and
> sufficient privilege to send signals to the VM process.
>
> If you want to copy any of these ideas for use in some other Squeak server
> application, the interesting bits are in class SSImageInit, especially
> SSImageInit class>>enableFRBServerOnSigUsr2.
>
> I should note that RFBServer is written by Ian Piumarta. I don't recall
> where it was originally hosted, but a copy of RFB-ikp.8.mcz is in our
> source.squeak.org/ss repository, along with later updates that are currently
> in use for SqueakSource.
>
> Dave
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