Raspberry Pi

These settings only apply to students and employees of the TUHH. Students of other universities please use the settings of their university, also with us at the TUHH.

Connect to eduroam

For a manual configuration, please do the following (testet on Raspberry Pi 3 B+ with Raspbian GNU/Linux 11 (bullseye)):

  1. In /etc/ssl/certs/ you should find the file dfn-verein_community_root_ca_2022.pem. If not, please download it here:
  2. Load the wpa_supplicant.conf onto the Raspberry Pi, (over LAN, USB Stick or the Wi-Fi network VPN/WEB and the WebVPN):
  3. Edit the file and input your TUHH account with eduroam usage rights:
    nano wpa_supplicant.conf
  4. Move the file to /etc/wpa_supplicant/wpa_supplicant.conf:
    sudo mv wpa_supplicant.conf /etc/wpa_supplicant/wpa_supplicant.conf
  5. Change the file access rights, such that only root has read access to it:
    sudo chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf
    Pay attention to who is part of the system group sudo, which is saved in /etc/sudoers and /etc/sudoers.d/*, who knows the root password and whose SSH key has an entry in /root/.ssh/authorized_keys. These people can see the TUHH password in /etc/wpa_supplicant/wpa_supplicant.conf.
  6. Restart the device:
    sudo shutdown -r now
  7. With the following command, you can find out the IP address of your device to access it:
    ip -4 -h -c address show
    The port restrictions in eduroam can be found here.
When problems occur, have a look at the following pages:

With the eduroam Configuration Assistant Tool you can automatically configure the NetworkManager and generate wpa_supplicant.conf.

  1. Download the Python script for Linux and move it (e.g. with a USB stick) to the Raspberry Pi.
  2. In the directory, run the script: python3 ./
  3. If it is detected that the NetworkManager is not present, .config/cat_installer/cat_installer.conf is used to store the configuration.
  4. Add the lines to the file at /etc/wpa_supplicant/wpa_supplicant.conf as root and restart the Raspberry Pi: shutdown -r now

More Information

You can find a summary as a flyer for printing at the WLAN entry page.

The subpages Information, SSID: VPN/WEB and SSID: eduroam give the interested reader even more background knowledge.

back to WLAN entry page


Please make sure that your device has the latest patches installed, that you are not using more than one anti-virus program and that no "unblocker" is active.
(Unblocker are programs which can unlock content, that is blocked in one country, but not another.)

If you have questions or problems, please have a look at our help pages first. (Klick here for VPN Help)
With questions, suggestions, reports or further problems please contact our User Service Center (Helpdesk). We respond quickly to e-mails to

In the non-lecture period, the WLAN consultation will take place with Finn Müller and Phillip Vogel in E2.047/E2.048. You can find the dates here, as well as in the corridors in the E building.

  • tuesdays: 10:00 - 13:00
  • thursdays: 10:00 - 13:00