IT-Service: Citrix

Citrix Workspace app reset

If a reset of the Citrix Workspace app should become necessary, you can find instructions on how to do this here:

Setup your new user profile

The new Citrix farm is based on Windows 10, which results in changes in the design of the Start menu and some other settings. Due to the new version a new user profile is technically required. In the following link, we provide a .pdf document with instructions on how to set up your new profile.


If you have any further questions or remarks, please contact windows-service.


Here you will find instructions on how to install and configure the Citrix software for accessing the (new) Windows Terminal Server or to use it via a web browser.

Microsoft has changed the license policy since beginning of 2015. That is why all needed Windows accounts have to register in a special group in our active directory. You may request this via an email to the ticket system (windows-service at  

With Citrix Workspace app, you are able to access to the Windows Terminal Server from outside the GSI Windows domain. In this way GSI Windows environment (data, e-mail, SAP, etc.) is available. To establish the connection, client software must be installed and configured on the device.

The Citrix Workspace app is available for all standard operating systems at GSI:


There are different ways for software installation depending on you are located inside or outside the GSI domain:

  • inside - The software is available in the Software Center: Citrix Workspace LTSR. An older version of the Citrix client will be previously uninstalled automatically.


  • inside - Citrix Workspace app is available as standard. Please note that these instructions are only valid for newer Debian versions such as Wheezy or Jessie, not for Squeeze and earlier.
  • outside - Please download the actual version of Citrix Workspace app for Linux from this web site:


Please download the actual plugin from this web site:

All needed certificates are already installed on Citrix installations on Windows / Linux supported by WIN group or HPC.

In other cases you must install the following certificate:

Linux - outside

Ubuntu: Save the certificates in PEM format in the directory /opt/Citrix/ICAClient/keystore/cacerts
If necessary, execute the command /opt/Citrix/ICAClient/util/ctx_rehash.

To convert a certificate file from DER to PEM you may call the following command:
openssl x509 -in file.crt -inform der -out file.pem -outform pem

Please note that the path could be different in other distributions or Citrix Versions.

You may need to delete the Citrix certificate directory completely and create a symlink to /etc/ssl/certs instead.

To establish the connection can take quite a while depending on your internet access.

The Citrix Storefront will be displayed, with all applications available for selection.

  • Desktop = various terminal servers with Windows 2012 R2 and Office2016
  • Office2010 = one terminal servers with Windows 2012 R2 and Office2010

You will be asked for the Server Address. Type: and click the Button Next:

If the version without Single Sign On was installed, enter the user data here:

User:        Your_windows_user name

Password: your_windows_password

  • Users of a Windows operating system should always use the client. (see above) 
  • Users of a Linux operating System are able to use the new version of the Citrix client with the web browser of your choice for working on a Windows Terminal Server. Type the address into the address bar.

This opens the start Screen. Log in with your Windows user name (without campus) and password:

The login procedure can take several minutes.

Start manually

Windows 10: Start Citrix Receiver


A toolbar with the following functions is available at the top of the Citrix window:

  • Home: Minimizes all Desktop Viewer Windows
  • Ctrl+Alt+Del: Lock screen, Logout, Change password, Task Manager
  • Settings: Options for file access, connections, Display
  • Full screen: Switching between window sizes
  • Separate: Disconnect session to resume later
  • Links:


Explorer labels

In the explorer you can see

  • the drives (without the floppy) of your (local) PC and
  • the drives on the Terminal Server.

The drives of your own PC have the label on your client, example: on DEPCnnn. The network drives on the terminal server have the name of DFS, e.g.  \\campus\...

Close your der Terminal Server session

If you want to close a terminal server session, always choose Start - Log off.

It is also possible to leave the session in order to continue it at a later time. In this case, choose the corresponding function from the toolbar.

The past has unfortunately shown that this occasionally leads to problems and prevents a later registration. In these cases, contact the ITH or create a ticket at windows-service(at)


User profile

The profile stored on the server for these terminal servers is called ConfigTS.V2, it must be configured (Outlook, network drives, printer, desktop) after the 1st call.

Your network drives, which you have connected in your desktop Windows profile, can also be easily imported into this profile via the Software Center.


    You can copy additional configurations from the Windows10 profile:

    • Desktop
      Source: Q:\Config.V6\Desktop
      Target: C:\users\your_username\Desktop
    • Outlook-Signature
      Source: Q:\Config.V6\AppData\Roaming\Microsoft\Signatures
      Target: C:\users\your_username\AppData\Roaming\Microsoft\Signatures (the directory is only created after the 1st start of Outlookt)

    Printing on a private device

    The own printers e.g. in the home office can be reached via the entry "Citrix universal printer (from hostname) in session nn".

    The EMF Viewer opens with a print preview. A click on the print symbol starts the printer selection of the printers installed on your home PC.

    Drucken auf einem privaten Gerät

    Make sure that you minimize the printing of sensitive or business-relevant data on a non-GSI device and in any case protect it from foreign eyes (do not dispose it in household waste)!

    Resetting the Receiver

    If the Terminal Server connection is interrupted unexpectedly, it may happen that a restart ends with an error. The cause can be various reasons, e.g. an interruption of the Internet connection.

    Then it is necessary to reset the Citrix Receiver.

    Right-click on the Citrix icon in the task bar at the bottom right and select Advanced Settings. There you will find the item Reset Receiver.

    On every saturday between 2 and 3 a.m. limitations in the availability of the server will occur (availability updates will be installed and servers will restart).
    Please consider this in your use of the services.