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Logging into the Lengau cluster
As of 20 June 2026, the Lengau login procedure has been made much more secure. There are three layers of security:
- Multi-factor authentication on the user portal
Process
This is the process for logging into Lengau for the first time once services have been restored:
- Login to the CHPC User Portal using your username and password.
- Complete MFA verification using the 6-digit code sent to your email (valid for 2 hours).
- Configure and download your unique VPN profile, then connect to the CHPC VPN.
- Create your SSH keys (if none exist) and copy the contents of public key to a text file.
- Load the contents of the public key file onto the cluster through the ssh-keys management page on the user portal.
- SSH to Lengau using your CHPC username. If you have not loaded the keys at the previous step, you will be prompted to do so now at the login prompt.
The process is demonstrated in this video.
Frequently Asked Questions
Before asking for help, please take a look at our Login FAQ
Multi-factor authentication on the user portal
Users manage their profile data on the CHPC user portal. To protect the integrity of the cluster login credentials as well as private information, logging into this web-based user portal will require the user to enter a 6-digit code which will be sent automatically to their registered email address. Contact the CHPC helpdesk immediately if you notice such any such email not triggered by yourself.
Virtual Private Network into the CHPC network
A VPN is used to restrict access to the CHPC network to registered CHPC users. In addition, each registered user may have only one open VPN connection at any given time. Get your WireGuard configuration file on the CHPC user portal. Additional client software install instructions are available on the WireGuard web page.
Cluster login by means of ssh-keys only
To increase security without incurring too much unnecessary effort, cluster login is by means of ssh-keys only. Passwords are inherently insecure and easy to get wrong. Ssh-keys are easy to set up and make subsequent logins much easier. The process is explained on this page.
