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SiteMinder uses a policy-based access control model. A SiteMinder policy defines the type of access a user has to a particular resource and what happens when the user accesses the resource. Each standard SiteMinder policy is a linkage between a set of users and a set of resources, and is designed to protect resources by binding together users, rules and responses. Every policy must specify the users or groups of users to which the policy applies. Users can be either included or excluded from the policy.
In addition, a standard policy must contain at least one rule or rule group. Rules are the parts of a policy that determine precisely which resources are protected and what type of action should cause a rule to fire. A rule identifies a resource or resources that are included in the policy using a combination of a string-based resource filter and action. The filter in turn consists of realm filter and rule filter. For information about realms, rules, and responses in standard SiteMinder policies, see the following:
SiteMinder objects can be of two types: system level and domain level. In a standard (non-global) SiteMinder policy, all policy objects must be created in the context of a specific domain. However, global policies are system level policies that may be applied across all domains in a SiteMinder deployment. An administrator with system level privileges can define global policies, that include global rules and global responses. These global policies may be applied to any resource in any domain.
Global objects are similar to their standard, domain-specific counterparts. The roles of global objects in a global policy definition are different from domain-specific policy objects in the way they are created and linked to form policies. However, there are no global domain or global realm objects.
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