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# Environmental Cheminformatics Educational Platform: Plan B

This repository contains a collection of ansible scripts which can be
used to provision an Ubuntu/Debian based virtual machine in a public
cloud. The scripts have been written for a specific Digital Ocean
_droplet_, but can easily be adapted for something else.


## Access

The desktop environment on the compute node *alien-one* is accessible
through VNC protocol. Any VNC viewer can be used. If in doubt, try the
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cross-platform TigerVNC viewer [available from here for
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Windows](https://bintray.com/tigervnc/stable/download_file?file_path=vncviewer-1.11.0.exe),
or as a package from your GNU/Linux distribution.



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**Before** connecting, you need: 
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	- A X509 certificate file (`*.pem`).
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	- The IP address of the server.
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	- Your username and password.
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### Connection instructions

1. Open the VNC viewer.
2. Click `Options`.
3. Switch to `Security` tab.
4. Make sure that at least `TLS with X509 certificates` is checked.
5. Make sure that at least `None` is checked in the `Authentication` section.
6. Set the `Path to X509 certificate` to the location of the X509
   certificate file.
7. Now, click `OK` to accept changes and close the `Options` tab.
8. Fill in the IP address of the server in field `VNC server` and
   append `:5950` to it. So, the `VNC server` entry should look like
   this `XXX.XXX.XXX.XXX:5950`.
9. Click `Connect`.
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10. When at the login screen, ensure you are using the `Xfce Session` (settings wheel, bottom right) before entering your password.
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## Using Environmental Cheminformatics Programs

TODO