為因應使用者對網頁服務的需求，現有的單一網頁主機的架構，早已不敷使用，因此分散式代理伺服器系統因應使用者龐大的需求而產生，但是其所運用的負載平衡機制，常常會因為切換代理伺服器的技術，而造成使用者需要重新進行認證的問題發生。 分散式代理伺服器系統所遇到最大的問題在於網頁重新連線時，伺服器之間連線的轉移；在連線轉移的同時，又要能解決客戶端的連線正常，並且不需要重新認證。所以，本篇論文主要擬解決的問題就是我們要設計出一種整合型之分散式代理伺服器系統，讓使用者在登入需要認證的網頁過程之中，不會因為代理伺服器之間的資料交換，而導致使用者需要重新登入。 In order to meet users’ needs for web services, the existing structure of single web host is no loner adequate. Therefore, in order to meet enormous user needs, the Distributed Proxy System was born. However, due to the Load Balancing Mechanism applied to it, the problem of user re-authentication often occurs, because of the technique of proxy server switching. The biggest problem encountered by a Distributed Proxy System is the connection shift among servers when a webpage is reconnected again, the connection of the Client End should be kept normal at the same time when the connection is shifted, without any re-authentication. Therefore, the main problem that this paper intends to solve is: We will propose Single Logon Distributed Proxy System; thus, when entering a web page that requires authentication, a user will not have to re-login due to the data exchanges among proxy servers.
