我们有一个 SharePoint(Win2003 R2 上的 MOSS 2007),其中嵌入了 SSRS 报告(来自 SQL 2005)。
当我们通过 VPN(防火墙是 Juniper SA4000)并使用 Internet Explorer(6、7 和 8)连接到 SharePoint 门户并尝试在 Excel 下导出任何 SSRS 报告时,我们会收到一条错误消息:
Internet Explorer cannot download .
Internet Explorer was not able to open the internet site. The requested site is either unavailable or cannot be found. Please try again later.
不使用 VPN(办公室的 LAN)时,一切正常(在 Excel 下导出)。通过 VPN 使用 Firefox 时,它运行良好。导出为任何其他格式(pdf 或文本或其他格式)时,在 IE 和 FF 下一切正常。
我们的防火墙人员怀疑 SSRS/MOSS/Office 中的某些内容。我们的 MOSS 顾问怀疑防火墙 Juniper SA4000 中存在某些问题。
使用 Fiddler 且未通过 VPN 连接时,单击“导出按钮”后,我会看到以下流量:(响应是对客户端凭据的请求)
GET /ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=j1pqbvbqkb34qf45fhlgnx55&ControlID=733607a7d607476abb1e6b8794202158&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL HTTP/1.1
Accept: */*
Accept-Language: en-US,fr-be;q=0.5
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB5; .NET CLR 2.0.50727; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; MS-RTC LM 8; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Accept-Encoding: gzip, deflate
Connection: Keep-Alive
Host: r1frchcurdb01.r1.group.corp
HTTP/1.1 401 Unauthorized
Content-Length: 1656
Content-Type: text/html
Server: Microsoft-IIS/6.0
WWW-Authenticate: Negotiate
WWW-Authenticate: NTLM
X-Powered-By: ASP.NET
Date: Mon, 08 Jun 2009 09:25:21 GMT
Proxy-Support: Session-Based-Authentication
然后(通用响应成功):
GET /ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=j1pqbvbqkb34qf45fhlgnx55&ControlID=733607a7d607476abb1e6b8794202158&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL HTTP/1.1
Accept: */*
Accept-Language: en-US,fr-be;q=0.5
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; GTB5; .NET CLR 2.0.50727; .NET CLR 1.1.4322; InfoPath.2; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; MS-RTC LM 8; OfficeLiveConnector.1.3; OfficeLivePatch.0.0; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)
Accept-Encoding: gzip, deflate
Connection: Keep-Alive
Host: r1frchcurdb01.r1.group.corp
Authorization: Negotiate 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
HTTP/1.1 200 OK
Date: Mon, 08 Jun 2009 09:25:21 GMT
Server: Microsoft-IIS/6.0
X-Powered-By: ASP.NET
WWW-Authenticate: Negotiate oYGgMIGdoAMKAQChCwYJKoZIgvcSAQICooGIBIGFYIGCBgkqhkiG9xIBAgICAG9zMHGgAwIBBaEDAgEPomUwY6ADAgEXolwEWm70xlMp4oj/PyvriNMeNDigow6/MX2DpaYQdBfGkiF0Dcc323tHLRBxBL03QpvwdGBxZGAJI6V1G8sc/lVBzhlCNsZkbJcNfnMNgOgc7UPrz+ZVav/EVm3sDQ==
X-AspNet-Version: 2.0.50727
Content-Disposition: attachment; filename="Product Application Report.xls"
Cache-Control: private
Expires: Mon, 08 Jun 2009 09:24:21 GMT
Content-Type: application/vnd.ms-excel
Content-Length: 23012
使用 VPN 时,我在 Fiddler 中看不到任何流量,并且错误消息显示在其他任何内容之前。
2009 年 6 月 17 日更新:我可以从我们的 SA4000 获取一些日志。也许这可以帮助更多。
Info PTR23232 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Start Policy [WEBURL/PROTOCOL] evaluation for resource http://<DB server>:80/ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=rua1g355tic24245f2e13lim&ControlID=44168efcd36e461493f7a69962580b91&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL
Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Enable HTTP 1.1]...
Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://nsrvnts2:80/*] does not match
Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://nsrvnts3:80/*] does not match
Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Disable HTTP 1.1]...
Info PTR23239 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Action [HTTP 1.0] is returned
Info PTR23234 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Policy [Disable HTTP 1.1] applies to resource
Info PTR23308 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Skip Policy [WEBURL/COMPRESSION] evaluation because Compression option is not enabled
Info PTR23232 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Start Policy [WEBURL/WEBPDSID] evaluation for resource http://<DB server>:80/ReportServer/Reserved.ReportViewerWebControl.axd?ExecutionID=rua1g355tic24245f2e13lim&ControlID=44168efcd36e461493f7a69962580b91&Culture=127&UICulture=9&ReportStack=1&OpType=Export&FileName=Product+Application+Report&ContentDisposition=OnlyHtmlInline&Format=EXCEL
Info PTR23233 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Applying Policy [Corporate BI Portal]...
Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://<SharePoint>:80/*] does not match
Info PTR23240 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - Resource filter [http://<SharePoint>/*] does not match
Info PTR23235 2009/06/15 17:22:38 - <SA4000> - [<SA4000 IP>] - <user>[SA4000 group names] - No Policy applies to resource
欢迎任何提示。:)
当您在公司 LAN 上时,尝试使用Fiddler检查流量,并比较通过 VPN / Juniper 防火墙的流量。您可以尝试Fiddler 与 Firefox和 IE 作为另一个比较。希望你会看到一个不同之处,它将为你指明正确的方向......
我猜这与 Firefox 和 IE 之间的身份验证差异有关,并且有一个代理破坏了 IE 的身份验证方法。
您也可以尝试更改您的 SharePoint 网站上的安全性,是否可以在短时间内打开一个空白报告(即允许匿名访问,没有集成安全性/NTFS 问题可能)?
我们终于找到了解决方案。
我们不得不:
现在它可以工作了......
IIRC,一些瞻博网络 VPN 无法将地址分配委托给您组织的 DHCP 服务器,因此根据您的 DNS 保护方式,客户端可能无法正确注册其主机名,这可能会破坏 Kerberos。此外,如果您使用反向代理访问 Sharepoint 场,则有多种方法可以破坏 Kerberos。
我要尝试的第一件事是确保您允许协商身份验证,以便浏览器降级到 NTLM 或基本/摘要身份验证。如果可行,您可以开始对 VPN 人员大喊大叫,他们可能会或可能无法对此做些什么。