| 摘要 |
In an authentication method for using a plurality of Web servers to allow only a user in a certain group to access information in the Web servers, a first Web server has a restricted access domain that only the user in the certain group is allowed to access from a client terminal, and does not have authentication information regarding the user. A second Web server has the restricted access domain that only the user in the certain group is allowed to access and further has the authentication information registered thereto. The first Web server delivers an authentication request to the second Web server. Based on authentication results determined by the second Web server, the first Web server allows the user to access the information. As a result, it is possible to reduce both user's work load for using a Web server to which the authentication method is applied and administrator's work load for managing the Web server.
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