In most organizations, users sign in to the network and are authenticated by an editor's domain controller.
A user who provides the right credentials to the domain controller is granted a security token.
Applications that are running on the servers in the same areas environment trust, the security tokens
the editors domain controllers provide.
This is because the servers can communicate with the same domain controllers on which the user resolves
authenticate.
That type of authentication does not extend outside the eight.
It is forest boundaries easily.
You can implement trusts based on the Kerberos V5 Authentication Protocol or an integrated Windows authentication,
which is RWA between two added Earth forests.
However, client computers and domain controllers on both sides of the trust must communicate with domain
controllers in the other forest to make decisions about authentication and authorisation.
This communication requires network traffic that is sent on multiple boards, so this path must be open
or no firewall for walls between the domain controller and the other computers.
The problem becomes even more complicated when a user must access resources that are hosted in cloud
based systems such as Microsoft Azure or Microsoft Office.
365.
Claims based authentication provides a mechanism for separating user authentication and authorization
from individual applications with claims based authentication.
A user can authenticate a directory service that is located within their organisation and be granted
a claim based on that authentication.
The claim is then presented to an application that is running in a different organisation.
The application allows users the user access to information or features based on the claims presented.
All communications or cures.
Over age, it appears the claim that is used in claims based authentication is a statement about a user
that is defined in one organisation or technology and trusted in another.
The claim can include a variety of information.
For example, the claim can define the user's email, address the user, principal name or a European
account information about specific groups to which the user belongs.
This information is collected from the identity store when the user successfully authenticates.
The organization that manages the application defines the types of claims that the application will
accept.
For example, the application might require the user's email address to verify identity and then use
the group membership that is presented inside the claim to determine what level of access the user will
have within the application.
Next up, we'll be talking about overview of Web services.