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III Network Resource Security Models
As mentioned in the NOS chapter,
resources in a network can be shared based on user-level
permissions, or based on share-level permissions. With share-level
permissions, anyone who knows the password to a resource can access
it. Access control is accomplished by providing some users with passwords
to some resources, and other users with passwords to other resources
and hoping that they dont share the resources passwords
with each other without authorization. With user-level authentication,
the network administrator must have explicitly permitted the user (or
a group of users) access to the resource before they can get to it.
User-level Vs. Share-level
Review the differences between user-level security and share-level security. This is a valid test topic. |
User-level security usually assumes
the existence of a central server on which user information is stored,
and on which user authentication occurs. In the following sections,
well discuss a few important security aspects of popular network
operating systems often used as servers in the corporate environment.
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CertiGuide for Network+ (http://www.CertiGuide.com/netplus/) on CertiGuide.com
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