Emergency lockdown of VUB-HPC clusters#
Updated on 21/10/2026
17:00 CEST: Access to HPC clusters of VUB (Hydra, Anansi) and VSC Tier-1 sofia is fully restored.
Updated on 20/10/2026
17:00 CEST: We are in the process of deploying the required system updates to fix the security issues that caused this emergency lockdown.
Hydra and Anansi are expected to be partially online on Wednesday October 21st at 10:00 CEST. Login nodes and the OnDemand portal will be accessible to all users. Compute nodes on Hydra will be fully online by the end of the day at 17:00 CEST.
Sofia is expected to be fully online by Wednesday October 21st at 12:00 CEST
Access to the HPC clusters of VUB (Hydra, Anansi) and the VSC Tier-1 cluster sofia is closed until further notice.
This measure includes the following services:
SSH connections through the terminal interface
OnDemand sessions through portal.hpc.vub.be and portal.sofia.vub.be
Remote sessions with tunneling such as VS Code applications
All active sessions in our clusters have been terminated as well. Compute nodes and the job scheduler will continue to process jobs in the queue. The only jobs canceled are those that involve remote sessions through OnDemand portals.
Users that urgently need to access their data, can do so through the Globus platform. Please check our documentation on VSCdocGlobus if you are not familiar with it.
We cannot yet provide a timeline for the complete resolution of this issue as we still need to complete our investigation on it. We will keep this post up to date with any progress on this issue.
For any comments or questions, please contact us at VUB-HPC Support.