Courant continues to develop more virtualization strategies to help manage the greater flexibility needed in modern days.
These machines are restricted to logins from within the Courant network, so if you are coming from outside of CIMS, you will have to first login to access.cims.nyu.edu, then use ssh to get to them.
Magma software is availabe for use on the first two virtual machines vm-node-01.cims.nyu.edu and vm-node-02.cims.nyu.edu. You should be able to run magma by running 'magma' from the terminal. More documentation is available from it's location in /local/magma/doc.