Network & Security
This page describes how Anunna is connected and how access to it is secured.
Network
Internally, the compute nodes and the Lustre filesystem are linked by a high-speed, low-latency interconnect, which is what lets the parallel filesystem and multi-node jobs perform well.
From outside, the cluster is reached over SSH at login.anunna.wur.nl (TCP port 22). Access may be restricted to certain IP ranges, and some services are only reachable over the WUR VPN. See Log in to Anunna for how to connect.
Authentication
You log in with your WUR account. For stronger protection you can add multi-factor authentication to your SSH access using a hardware security key — see Using a hardware key for better security. You can also configure key-based login so you are not prompted for a password each time; see Ssh without password.
Data security
For how file and folder permissions work on the cluster, see Shared folders. For storing confidential data, contact the HPC team via Support.