Welcome to the Centrify Express community,
Although the platform is not in the supported list, it sounds (from what I briefly read) that it uses PAM (Pluggable Authentication Modules).
Reference: https://jupyterhub.readthedocs.io/en/latest/
Different authenticators control access to JupyterHub. The default one (pam)
uses the user accounts on the server where JupyterHub is running. If you use
this, you will need to create a user account on the system for each user on
your team. Using other authenticators, you can allow users to sign in with
e.g. a Github account, or with any single-sign-on system your organisation
has.
This means that if the Linux server you're using to front-end is supported by Centrify and it's loaded, it should just work because we provide a PAM module and it's configured automatically.
As per the link below, there may be other options.
http://jupyterhub.readthedocs.io/en/latest/api/auth.html
R.P