Index

Why do I always have an error message when I log into Linux?

Then you don’t have a print account yet. Just click away. It’s normal and no big problem. If you have a print account, a window with the current account balance will appear instead.

Can I access the computer from outside?

You can access the computers graphically via a remote desktop connection. You can find instructions here: Establishing a remote desktop connection to the CIP pools EEI and WW.
If you only need one terminal, you only need to be connected to the FAU network via VPN and establish a connection to any CIP computer. You can find the DNS names or IP addresses here: https://www.eei.tf.fau.de/cip/ausstattung/#collapse_0

How can I pass on data to others?

Just copy them into the directory: „/student_share„. This directory can be written and read by anyone and is available on all machines. You can also create subfolders there. But be careful: it is emptied every day at midnight!

You also can use the FAUBox to exchange files. Every user who has an IDM account automatically has a FAUBox account.

How can I exchange data between Linux and Windows and vice versa?

The easiest way to do this is via the FAUBox to exchange files online within the web interface. This allows you to exchange files between yourself and others. Every user who has an IDM account automatically has a FAUBox account.

Where are my Windows Home files?

The RRZE offers each student two GB of storage on a central Windows server. This is also used in the virtual Windows and integrated automatically.

How do I start Windows?

Windows can be started on a virtual machine if required. To do this, simply click on the Windows symbol in the taskbar on the left. Unfortunately, Windows cannot be operated under Remote Desktop for licensing reasons. After it has started up, click once in the window and log in with your idm access data.
Important: Be sure to shut down Windows again after the session ends, otherwise Windows will be active for the next user with your login data.

How can I find an overview of the installed programs in Linux?

If you are logged in locally, at the bottom left in the circle with the 3 dots. Otherwise, you can also click at the top left and enter the name of the program you want. If it is installed, it will be displayed.
With Remote Desktop at the top left under „Applications“.

Why can the trash no longer be deleted in Linux?

The RRZE offers a free network drive as a home directory with a limited quota (50GB). This means that at no time can you use more than the permitted storage space on the network drive.

To free up memory that may be in use, please try the following troubleshooting approaches first (see also https://www.anleitungen.rrze.fau.de/?p=8644#quota-exceeded).

Note: If a graphical login is no longer possible, you can switch to the text console with Ctrl+Alt+F3 and carry out the steps given below. After completing the work, exit the text console with exit and switch back to the graphical login with Alt+F2.

  1. Empty rubbish bin/trash
    Empty the trash can by right-clicking on the corresponding desktop icon or by typing
    rm -rI ~/.local/share/Trash
    Explanation:
    Deleted files are moved to the so-called recycle bin for easy recovery. The storage space is not freed until the recycle bin is emptied.
  2. Clear cache directory
    Delete the .cache directory in your home, eg by entering
    rm -rI ~/.cache
    Explanation:
    Various programs temporarily store files here in order to speed up recurring access (e.g. web browsers).
  3. Analyze memory usage and delete additional files if necessary
    Create an overview of memory usage and find the biggest memory hogs by entering
    du -sh ~/{.[!.]*,*} | sort -h
    Explanation:
    The command creates a list of all files and directories in your home and sorts them in ascending order of memory usage. This way you can find out what is using up the most memory and it might be worth cleaning up.
    A notice:
    On Linux, hidden files are marked with a dot at the beginning. To make them visible in your file manager, you can use the shortcut CTRL+H.

If these steps do not help you, please contact us again for a more detailed analysis of the problem.

I only have 10 MB of data but why does I still get the error message in Linux: Disc data exceeded?

Have you emptied your trash regularly? Empty it and you will usually have space again.

How can I check how much space I have used in my linux home?

Open a terminal and enter the following command:

testquota <return>

A window opens showing you how much data you have and where your big memory files are.