1.

After you start the VMware Horizon client, you must

set desktop.ecmwf.int as the server.

If there is any dialogue box asking for a user and password for vdesk.ecmwf.int (the older Reading-based VDI) just cancel it and click on "desktop.ecmwf.int".

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2.

Once the server is configured should see a screen similar to this (Mac client shown as an example)

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3. In the first authentication window you will need to provide your ECMWF user identifier (the short one of three or four letters) and the passcode that can be generated with your ActiveID token or application. After that is done successfully you will get to a second user and password screen 

4. In the second authentication screen you need to provide your ECMWF user identifier again, and your "desktop password". That is, the same you would use in an internal ssh connection.

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The next step would be a choice of the type of virtual desktop you want

selected you will be sent to the authentication screen, where you will have to use  the TOTP (time-based one time password). 

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3.

Once the initial authentication is established (either with a new or a pre-existing authentication) the browser will ask for your permission to run the "VMware Horizon Client". You must click Allow here 

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4.

After clicking "Allow", you are directed to any already open VDI session, or to a login screen in case you don't have any. If your userid is not listed, click on the "Not Listed" option and type your ECMWF UNIX userid

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5.

In case you already have an open session you will see the "Lock" screen. You can press any key at this point and you will be directed to the "Unlock" screen. Here you can type your ECMWF UNIX password and you should be able to unlock it.

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Please be aware that if you use a non-UK or US keyboard, any special characters in your password may be interpreted incorrectly. See Typing your password with different keyboard layouts - Linux Virtual Desktop VDI FAQ for some information about how to overcome this problem.

6.

Once the session is started, you can either use the Activities menu at the top left to open the menu or use the search box to find applications. Be reminded that this Linux VDI will only have a small selection of software installed, as envisioned by the Bologna - End-user Compute and Interactive Access model. Most of the applications you will need are indeed installed in the Atos HPC and expected to be run from there with ecinteractive.

Most users will not need much more than a terminal and a browser at this point, even though the ecflow UI is also installed.

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If this is the first time you access the system you may to check The initial setup of the Red Hat Linux VDI - Options to choose - Linux Virtual Desktop VDI FAQ

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5. In this screen you must choose one of the available options, keeping in mind that the number of options may be different depending on the user accessing. The main choice being between a Linux and a Windows system

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6. Last of all, you will need to supply your user and password once the system is started up