Frontend and Compute Node Maintenance

Due to the deployment of kernel security update, Debian 12 frontend servers will be rebooted in a rolling manner. Direct logins to some worker nodes will also be temporarily restricted.

What does this mean for users?

• Temporary restriction of direct login to compute nodes – Direct user logins to compute nodes will be temporarily disabled (nologin ) to minimize the risk of exploitation until all affected systems have been updated. Running jobs will be allowed to complete normally.
• Frontend servers will be restarted in a controlled, rolling manner after the security updates have been deployed. 
• As part of the maintenance, the skirit and perian frontend servers will also be upgraded to Debian 13.

We apologize for any temporary inconvenience and appreciate your understanding. Maintaining the security and reliability of our infrastructure remains our highest priority.