Visio Graphics Service 的快取保留時間下限設定可能會引發安全性問題 ((SharePoint Server)The Visio Graphics Service has a minimum cache age setting that may cause a security issue ((SharePoint Server)

摘要:了解如何為 SharePoint Server 2016 和 SharePoint Server 2013 解決 SharePoint Health Analyzer 規則「Visio Graphics Service 含有可能會造成安全性問題的快取保留時間下限設定」。Summary: Learn how to resolve the SharePoint Health Analyzer rule "The Visio Graphics Service has a minimum cache age setting that may cause a security issue" for SharePoint Server 2016 and SharePoint Server 2013.

規則名稱:Visio Graphics Service 含有可能會造成安全性問題的快取保留時間下限設定Rule Name: The Visio Graphics Service has a minimum cache age setting that may cause a security issue

摘要:快取保留時間下限設定為 0 分鐘可能 Visio Graphics Service 保持在開啟狀態以拒絕服務 (DoS) 攻擊。此設定為 0 的值可能會導致大型的處理器和網路負載的 Visio Graphics Service 與 SharePoint Server、 愈低兩者的預期的效能。不過,增加此值表示該使用者將不會看到其重新整理的資料連線圖表為常見問題。Summary: Setting Minimum Cache Age to 0 minutes may leave the Visio Graphics Service open to a denial of service (DoS) attack. A value of 0 for this setting might lead to large processor and network load of the Visio Graphics Service and SharePoint Server, decreasing the expected performance of both. However, increasing this value means that users will not see their data-connected diagrams refreshing as frequently.

原因:快取保留時間下限] 設定設為 0 分鐘。Cause: The Minimum Cache Age setting was set to 0 minutes.

解決方案:增加 [快取保留時間下限] 設定的值Resolution: Increase the value of the Minimum Cache Age setting

  1. 確認執行此程序的使用者帳戶是否為 Visio Graphics Service 服務應用程式的管理員。Verify that the user account that is performing this procedure is an administrator of the Visio Graphics Service service application.

  2. 在管理中心內,在 [首頁] 頁面上的 [應用程式管理] 區段中按一下 [管理服務應用程式In Central Administration, on the Home page, in the Application Management section, click Manage service applications.

  3. 在 [服務應用程式] 頁面上,按一下 Visio Graphics Service 應用程式。On the Service Applications page, click the Visio Graphics service application.

  4. 在 「 管理 Visio Graphics Service 」 頁面中,按一下 [通用設定]。On the Manage the Visio Graphics Service page, click Global Settings.

  5. 請確定設定具有下表所列的值。如果不要,在相對應文字] 方塊中輸入的值並按一下 [確定]Ensure that the settings have the values that are listed in the following table. If they do not, type the value in the corresponding text box and click OK.

設定Setting Value
Web 繪圖大小上限Maximum Web Drawing Size
<= 25 (MB)<= 25 (Megabytes)
快取保留時間下限Minimum Cache Age
>= 5 (分鐘)>= 5 (Minutes)
快取保留時間上限Maximum Cache Age
<= 60 (分鐘)<= 60 (Minutes)
重新計算時間上限Maximum Recalc Duration
<= 60 (秒)<= 60 (Seconds)
最大快取大小Maximum Cache Size
>= 5120 (MB)>= 5120 (Megabytes)