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Be more precise: one needs an IP address within SUNET
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richelbilderbeek committed Dec 22, 2023
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## Get within the university networks

Bianca has sensitive data.
To protect this data from leaking,
Bianca can only be access from within the
Swedish university networks.
These networks together are called [SUNET](https://www.sunet.se/).
To protect this data,
Bianca is accessible from all Swedish university networks.
To be precise, to connect to Bianca one needs to so from a
[SUNET](https://www.sunet.se/) Internet Protocol ('IP') address.

One cannot access Bianca outside of SUNET.
Hence, one must get inside SUNET first.
Due to this, the first step to access Bianca
is to get an IP that is inside SUNET first.
There are these ways to do this:

- Physically move inside SUNET
- Use a virtual private network
- Use a VPN (a 'virtual private network')
- Use an HPC cluster within SUNET

Each of these three ways are described below.
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2. Login
Bianca is accessible from all SUNET IP addresses, i.e. all Swedish university networks. It is generally NOT accessible from other networks. Use your university's VPN if needed.
The login procedure requires you to pass two separate authentication mechanisms (automatically connected together). The first one logs you into the general Bianca login node (which we call the jumphost). This is the step that requires two factor authentication. You will then be automatically redirected to your project's private login node, where you will get a new password prompt (unless you set up ssh-keys).
The user name you will use in the first step is your ordinary UPPMAX user name, followed by the project ID of the project you want to work on. One of the security measures on Bianca is that all projects are kept separate on their own virtual clusters, so you must tell Bianca which project's cluster you want to connect to.
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