Web 应用程序在本地主机上运行，但在远程连接上失败
我们正在部署一个新的 ASP.NET Web 应用程序，该应用程序使用我们还构建的单独的 DLL，该 DLL 反过来询问 Active Directory 以获取简单的用户和组成员身份信息。服务器是 Windows Server 2003。
如果我通过 RDP 连接到服务器并在 localhost 下浏览它，则应用程序可以正常工作。
当我从单独的 PC 浏览该应用程序时，该应用程序抛出以下错误。如果我从服务器上的 RDP 会话浏览到它，但在服务器名称下浏览它，它也会引发相同的错误。
这是代码访问安全问题吗？还有其他想法吗？
异常详细信息： System.Runtime.InteropServices.COMException：发生操作错误。
来源错误： 执行当前 Web 请求期间生成未处理的异常。有关异常来源和位置的信息可以使用下面的异常堆栈跟踪来识别。
堆栈跟踪： [COMException (0x80072020): 发生操作错误。 ]
System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail) +420085
System.DirectoryServices.DirectoryEntry.Bind() +36
System.DirectoryServices.DirectoryEntry.get_Name() +32
USM.UsmAD.get_DomainName() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\Active Directory Search\USMAD\USMAD\UsmAD.cs:60
USM.UsmAD.Get_UserGroupNames(String username) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\Active Directory Search\USMAD\USMAD\UsmAD.cs:190
AdminWeb.CheckAccessDAL.GetGroupNames() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\USMDAL\CheckAccessDAL.cs:28
AdminWeb.CheckAccessDAL.SetMenuAccess(Menu mnuUSMAdmin) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\USMDAL\CheckAccessDAL.cs:89
AdminWeb.SiteMaster.TrimMainMenus() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\AdminWeb\Site.Master.cs:50
AdminWeb.SiteMaster.Page_Load(Object sender, EventArgs e) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\AdminWeb\Site.Master.cs:17
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Control.LoadRecursive() +146
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
We have a new ASP.NET web application we are deploying that uses a separate DLL which we also built which in turn interrogates the Active Directory for simple user and group membership information. The server is Windows Server 2003.
The application works fine if I RDP to the server and browse it under localhost.
The application throws the following error when I browse to it from a separate PC. It also throws the same error if I browse to it from the RDP session on the server, but browse it under the server name.
Is this a code-access security issue? Other ideas?
Exception Details: System.Runtime.InteropServices.COMException: An operations error occurred.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[COMException (0x80072020): An operations error occurred.
]
System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail) +420085
System.DirectoryServices.DirectoryEntry.Bind() +36
System.DirectoryServices.DirectoryEntry.get_Name() +32
USM.UsmAD.get_DomainName() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\Active Directory Search\USMAD\USMAD\UsmAD.cs:60
USM.UsmAD.Get_UserGroupNames(String username) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\Active Directory Search\USMAD\USMAD\UsmAD.cs:190
AdminWeb.CheckAccessDAL.GetGroupNames() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\USMDAL\CheckAccessDAL.cs:28
AdminWeb.CheckAccessDAL.SetMenuAccess(Menu mnuUSMAdmin) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\USMDAL\CheckAccessDAL.cs:89
AdminWeb.SiteMaster.TrimMainMenus() in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\AdminWeb\Site.Master.cs:50
AdminWeb.SiteMaster.Page_Load(Object sender, EventArgs e) in C:\DevWork\Repo_CP\UnifiedSecurity\BRANCHES\LoginVsGUID\Applications\AdminWeb\AdminWeb\Site.Master.cs:17
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +91
System.Web.UI.Control.LoadRecursive() +74
System.Web.UI.Control.LoadRecursive() +146
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2207
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评论（2）
您可能需要在域级别身份下运行应用程序池，该身份有权访问与
Active Directory通信所需的资源。指定应用程序池的标识 (IIS 7)
<一个href="http://www.microsoft.com/technet/prodtechnol/WindowsServer2003/Library/IIS/f05a7c2b-36b0-4b6e-ac7c-662700081f25.mspx?mfr=true" rel="nofollow">配置应用程序池标识IIS 6.0 (IIS 6.0)
如果您需要这样做，这里有一篇文章运行时：
如何：在 ASP.NET 2.0 中使用模拟和委派
I还鼓励您实现 UnhandledException 处理程序来记录这些运行时错误。
You will probably need to run your app pool under an domain level identity that has permission to access the resources it needs to talk to
Active Directory.Specify an Identity for an Application Pool (IIS 7)
Configuring Application Pool Identity with IIS 6.0 (IIS 6.0)
Here is an article if you need to do this at runtime:
How To: Use Impersonation and Delegation in ASP.NET 2.0
I also encourage you to implement an
UnhandledExceptionhandler to log these run-time errors.听起来像是 dll 上的权限问题
尝试允许 IUSR 访问此文件....
sounds like a perms issue on the dll
try allowing IUSR access to this file....