Implementing Web access control system for the multiple Web servers in the same domain using RBAC concept

As the Web server based system is being used more and more, having separate Web servers for each task to distribute the Web server´s load are gaining much more popularity over having one main Web server to process all the tasks. When the user tries to access each Web server that contains a number of Web documents that are linked to each other via hyper-links within the domain, each Web server asks the user to follow the verification process even though the user is identical, and this prohibits the user from using the system efficiently. The role based access control method, which is the most suitable access control concept available now for the distributed Web server based system within the domain, is used in this paper. Additionally the method for controlling the level of Web document contents available to the user based on the user´s access permission rights is introduced to reduce the granularity of the document content access