9110 Privacy of user data

General privacy

There is a couple of things you as a user, can do to minimize the risk of your data and account on stallo being read/accessed from the outside world.

1. Your account on stallo is personal, do not give away your password to anyone, not even the HPC staff.
2. If you have configured ssh-keys on your local computer. do not use password less keys for accessing stallo.

What you can do to to prevent other users on stallo to access your files

By default a new account on stallo is readable for everyone on the system. that is both /home/ and /global/work/

This can easily be change by the user using the command chmod The chmod have a lot "cryptic" combinations of options (click here for a more in depth explanation ). the most commonly used is:

• only user can read her home directory:

  chmod 700 /home/$USER
  

• User and its group can read and execute files on the home directory:

  chmod 750 /home/$USER
  

• User and all others including the group can read and exeute the files:

  chmod 755 /home/$USER
  

• everybody can read execute and WRITE to directory:

  chmod 777 /home/$USER