MSExchange OWA 42

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上一次修改主题： 2011-03-19

本文对特定 Exchange 事件进行了说明并提供了可能的解决方案。如果您在此处未找到所需内容，请尝试在 Exchange 2010 帮助中进行搜索。

Details

Product Name

Exchange

Product Version

14.0

Event ID

42

Category

Proxy

Symbolic Name

ProxyErrorSslConnection

Message Text

Client Access server "%1" tried to proxy Outlook Web App traffic to Client Access server "%2". This failed because one of these configuration problems was encountered:%n%n1. "%2" has been set to use "http://" (not using SSL) instead of "https://" (using SSL). You can modify this by setting the InternalUrl parameter of the Outlook Web App virtual directory this proxy traffic is going to. You can set that parameter using the Set-OwaVirtualDirectory cmdlet in the Exchange Management Shell.%n%n2. The destination virtual directory returned an HTTP 403 error code. This usually means it's not configured to accept SSL access. You can change this configuration by using IIS Manager on the Client Access server "%2".%n%nIf you don't want this proxy connection to use SSL, you need to set the registry key "AllowProxyingWithoutSSL" on this Client Access server and to set the InternalUrl and SSL settings for the Outlook Web App virtual directory this proxy traffic is going to accordingly.

Explanation

This Error event indicates the computer that is running the Client Access server role could not proxy a Microsoft Office Outlook Web App request from one Client Access server to a Client Access server that is located in a different Active Directory site. A symptom of this error is that the user referenced in the event description could not use Outlook Web App to log on to their mailbox through the Client Access server in a different site. This event may be caused by one or more of the following:

  • The Outlook Web App virtual directory InternalURL of the target Client Access server does not use HTTPS as the prefix for the address.

  • HTTP 403 status code was returned by the Internet Information Services (IIS) of the target Client Access server.

For more information about this and other IIS status codes, see Microsoft Knowledge Base article 318380, IIS Status Codes.

For more information about Outlook Web App proxying and redirection, see 了解代理和重定向.

User Action

To resolve this error, take one or more of these steps:

  • Make sure that the InternalUrl address matches the fully qualified domain name (FQDN) of the Client Access server. For example, if you are using HTTPS, the InternalUrl should be in the format https://<InternalFQDN>/owa.

  • Make sure that you have correctly configured the prefix of the InternalUrl. For example, if the Client Access server is configured to proxy the traffic using HTTPS, make sure that the InternalUrl of the Outlook Web App virtual directory starts with the prefix HTTPS. If the Client Access server is configured to proxy the traffic using HTTP, configure the InternalUrl to use HTTP as the address prefix.

  • Make sure that the Outlook Web App virtual directory of the target Client Access server is configured to allow the incoming request to InternalUrl. You configure this setting using Internet Information Services (IIS).

Note It is highly recommended that you proxy the traffic between Client Access servers by using secure HTTPS. HTTPS is the default setting.

To proxy traffic using unsecured HTTP, do the following:

警告

不正确地编辑注册表时，可能导致出现严重问题，从而需要重新安装操作系统。因不正确地编辑注册表而导致出现的问题是能够解决的问题。编辑注册表之前，请备份所有重要数据。

  1. In Registry editor, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchange OWA.

  2. On the Edit menu, point to New, and then click Dword Value.

  3. Type AllowProxyingWithoutSsl, and then press Enter.

  4. Double-click AllowProxyingWithoutSsl.

  5. Under Value data, type 1.

  6. Under Base, click Decimal.

  7. Close Registry Editor.

  8. Restart Internet Information Services (IIS) by using the command iisreset/noforce.

For information about how to modify the properties of Outlook Web App virtual directories using the Set-OwaVirtual Directory cmdlet, see Set-OwaVirtualDirectory.

  • 与 Microsoft 支持专业人员联系，解决此问题。若要与 Microsoft 支持专业人员联系，请访问 Exchange Server 解决方案中心。在导航窗格中，单击“辅助支持选项”，并使用下列辅助支持选项之一来与 Microsoft 支持专业人员联系。由于您的组织可能已有直接与 Microsoft 产品支持服务联系的特定流程，因此，请您务必先查看您组织的准则。

For More Information

如果您尚未执行此操作，请考虑运行 Exchange 工具，已创建这些工具以帮助您分析 Exchange 环境并对其进行疑难解答。这些工具可帮助确保您的配置与 Microsoft 最佳实践保持一致。它们还可以帮助您识别和解决性能问题，并改进邮件流。若要运行这些工具，请转到 Exchange 管理控制台的“工具箱”节点。若要了解有关这些工具的详细信息，请参阅管理工具箱中的工具。