If you are a KCL user with a Rosalind account then you can use your KCL username and password to access the system. If you forget your password, or would like to change it, then you should do this through KCL IT, as normal. If you haven't already signed up to their self-service password reset system, then you can do that here: http://kclpword.kcl.ac.uk/
Passwords for non-KCL users are managed by the FreeIPA server on the Rosalind system. If you would like to change your password, you can do so from the HPC login nodes as follows:
# authenticate to the server kinit <current password> # request password change ipa user-mod <username> --password
If you do not have access to the HPC login nodes, either because you have a Cloud-only account or because you have forgotten your password, please contact your Rosalind Systems Administrator to have it reset.