Remote Desktop Service

The Informatics Remote Desktop service gives you a DICE Linux graphical login. You can use it from anywhere, on any device which has RDP client software.
You connect to a DICE remote desktop server. If you have a DICE computer allocated to you, you can connect to that instead.

How to get started with remote desktop

Firstly, you will need to configure your device. These pages tell you how to do that:

• ⇒ Remote Desktop on a Mac.
• ⇒ Remote Desktop on Windows.
• ⇒ Remote Desktop on Linux.
• ⇒ Remote Desktop on iOS.
• ⇒ Remote Desktop on Android.

You may need a VPN

Secondly, you may need to use a VPN.

• ⇒ VPNs.

Whether you need a VPN or not, and which VPN you need, depends on where you are on the network, and on which computer you're trying to connect to. To find out, keep reading.

There are two VPNs you can use - the University's VPN or the School of Informatics VPN.

• ⇒ The University VPN.
• ⇒ The School of Informatics VPN.

If you are on eduroam wifi

If you are on eduroam wifi, you can connect to a DICE remote desktop server without using a VPN.

To connect to your own DICE computer if you have one, you will need to use the School of Informatics VPN, or your access will be blocked by a firewall.

If you are connecting from home

If you are outside the Edinburgh University network - at home, for instance - and you want to connect to a DICE remote desktop server, then you MUST use a VPN, either the University's VPN or the School's VPN. If you don't, your access will be blocked by a firewall.

To connect to your own DICE computer if you have one, you will need to use the School of Informatics VPN, or your access will be blocked by a firewall.

If you are already on an Informatics computer

If you are using a computer on the Informatics wired network - like a student lab desktop or an office desktop - you will not need a VPN to connect to a DICE remote desktop server, and you will not need a VPN to connect to your own DICE computer if you have one.

Which host to connect to?

1. All Users: Your remote desktop hostname is your DICE username followed by .remote.inf.ed.ac.uk. For example, if your username was s1234567 then your remote host's name would be s1234567.remote.inf.ed.ac.uk.
2. Staff: Staff may additionally use a remote desktop server named staff.xrdp.inf.ed.ac.uk.
3. Office desktop owners: If you have a personal DICE computer (many staff and research postgrads have this), you can use it as a remote desktop server. In this case you should bear two things in mind:
   • The hostname to connect to will be your DICE computer's name followed by .inf.ed.ac.uk.
   • You will need to use ⇒ The School of Informatics OpenVPN service. If you don't, your access will be blocked by a firewall.

How to logout

When you have finished, please logout of your session - here's how:

• ⇒ How to logout of a remote DICE session.

To ensure the load on the service does not become too high, sessions left idle for more than two days are terminated automatically. If you have access to a DICE desktop machine you can connect to that instead, and the timeout there is two weeks. Note that to access a DICE desktop machine you need to be on the Informatics network (using our OpenVPN service).

Limitations

The remote desktop machines are shared, so please be considerate.

Processes which need a lot of memory or processing power, or which take days to run, should be run on other computers, for instance in the Informatics computing labs or on the compute servers - not on the remote desktop machines.

Some software is not available on remote desktop servers. This includes the Chrome web browser (google-chrome, google-chrome-stable), virtualisation software (for example QEMU and VirtualBox), VS Code and MATLAB. To use this software in a remote desktop session, login (using ssh in a terminal window) to a a compute server, a student lab machine or your own DICE desktop if you have one, and run it there.

FAQ

Share your screen (in a scheduled lab session)

See Chrome remote desktop.

Desktop Environment

The remote desktop service only supports the MATE desktop environment. To ensure a good quality of service, selecting an alternative desktop environment is not supported. The GNOME and KDE desktop environments both need a lot of resources and GNOME is known to not function correctly. However GNOME and KDE applications can still be run if wanted.

Copy/Paste Support

The standard copy/paste functionality (supported in most applications through menus or by using Ctrl-c, Ctrl-v, Ctrl-x) should now work reliably between remote and local environments. The traditional Unix style of highlighting text to copy and pasting by middle-button mouse click does NOT work.

Screen resizing

The XRDP software (which provides the RDP connection to the local X server) does not support dynamically changing the screen resolution - it is necessary to disconnect and then reconnect. See this issue on the project github page for full details.

Audio

There is no support for forwarding audio from the remote session to the local client.

Keyboard mapping problem

You may well get a US keyboard layout when you login - meaning that characters such as £, ~, |, > are on the wrong keys or aren't present. If you have the wrong keyboard layout then the following command, when run in a terminal window in your RDP DICE session, should fix things: setxkbmap gb.

Login problems

The keyboard mapping problem (above) means that people with non-alphanumeric characters in their DICE password may not be able to login, because their keyboard isn't sending the symbols they expect. We're looking for a solution to this problem.

Mate panel disappears

If the Mate panel disappears, it can be reset by pressing the following keys together Ctrl+Alt+T to open a terminal. In the terminal type mate-panel --reset . If this returns errors relating to dconf access, just move that out of the way with mv ~/.config/dconf/ ~/.config/dconf.bak and run the mate panel reset command again.

Slow response

In some clients, such as Microsoft Remote Desktop, you can change the options of the connection. E.g after clicking Options,the Experience tab contains quality options. Should the reactivity of your remote desktop be slow, you can experiment with these to find suitable settings

Inkscape doesn't work properly

On Ubuntu 20.04 this bug means that Inkscape won't start properly. The solution is to set the _INKSCAPE_GC environment variable to be "disable" before starting the application.