Access

Please apply for HSUper access using the following form (available on campus/VPN only, login with RZ credentials), if needed.

• CBRZ: HSUper Access Registration
• CBRZ: HSUper Project Access Request

Access HSUper using Linux / Windows 10+ / MacOS 10+

Login using your RZ credentials. Open a terminal / command prompt and enter, replacing with your RZ name:

ssh <rz-name>@hsuper-login01.hsu-hh.de

Access HSUper using PuTTY

You may also download and use “PuTTY” to manage different SSH connections (and more) using a GUI for settings. After opening PuTTY, put hsuper-login01.hsu-hh.de as the “Host Name” and click on “Open”. Enter your credentials afterwards.

Access HSUper using your public SSH key

Instead of entering every time your password, you may set up logging in using SSH keys.

• If you already have created SSH keys, you may add your public key to the ~/.ssh/authorized_keys file on HSUper using your favourite text editor.
• Connect to HSUper with your private key:

ssh -i ~/path/to/private/key <rz-name>@hsuper-login01.hsu-hh.de

• PuTTY: Configuration category “Connection -> SSH -> Auth”. Browse for your private key file.
• Note: You may skip the key parameter if you have only one SSH key stored in your ~/.ssh/ folder as it then gets transmitted automatically.

If you need to create new SSH keys, use the type “Ed25519” as it is currently seen as the fastest and most secure type. If you work from a terminal / command prompt, you may create a key using: ssh-keygen -t ed25519 Follow the instructions and remember where the public and private key are saved. Default values are fine.

• Manual for Windows: Creating a SSH key and connecting using it.

X11 Forwarding

If you are on a console using ssh, you may add the “-X” parameter to use X11 forwarding, allowing you to open graphical applications on the HSUper frontend and having them forward their windows to your local computer(which can, however, be very slow). If you use PuTTY, you’ll find the option in the PuTTY configuration category “Connection -> SSH -> X11”. Have a look at PuTTY’s documentation for more information.

Using the HSU VPN

• Install the OpenVPN client.
• (First time only: Download the the HSU OpenVPN configuration file “HSU Open VPN Konfiguration 2022″ while on campus from the webbox (Rechenzentrum).)
• Start the VPN connection:
  • Linux:
    • sudo openvpn –config /path/to/HSU_VPN_2022.ovpn,
    • Enter your RZ credentials.
  • Windows:
    • Start OpenVPN,
    • First time only: Right click on the tray icon, import the VPN configuration file,
    • Right click on the tray icon, click on HSU_VPN_2022 and enter your RZ credentials.