update quickstart, authenticator doc with 5.0 allow changes

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Min RK
2025-09-12 08:57:14 -07:00
parent af7ccfc117
commit 42ee0f9797
2 changed files with 38 additions and 3 deletions

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# Authentication and User Basics
The default Authenticator uses [PAM][] (Pluggable Authentication Module) to authenticate system users with
their usernames and passwords. With the default Authenticator, any user
with an account and password on the system will be allowed to login.
The default Authenticator uses [PAM][] (Pluggable Authentication Module) to authenticate users already defined on the system with their usernames and passwords.
With the default Authenticator,
any user with an account and password on the system will be able to login.
But that does not mean they will be **allowed** to access JupyterHub.
:::{important}
Only _explicitly allowed_ users can login to JupyterHub
(a user who can login but is not allowed will see a permission error after successful login).
:::
## Deciding who is allowed