尝试RefreshCache for DirectoryEntry时抛出DirectoryEntry (0x80072020)

Question

我编写了一个非常样例的测试程序，并将其作为域计算机中的本地系统帐户运行。代码如下所示：

static void Main(string[] args)
{
    try
    {
        System.Console.Out.WriteLine("Test Start");
        List<string> temp = new List<string>();
        temp.Add(Environment.UserDomainName);
        temp.Add("test");
        temp.Add("test.com");
        temp.Add("dc.test.com");
        temp.Add("gc.test.com");

        foreach (var i in temp)
        {

            using (HostingEnvironment.Impersonate())
            {
                System.Console.WriteLine("LDAP://{0}", i);
                DirectoryEntry entry = new DirectoryEntry("LDAP://" + i);
                try
                {
                    entry.RefreshCache();
                    string nativeGuid = entry.NativeGuid;
                    string path = entry.Path;
                    string server = entry.Options.GetCurrentServerName();
                    System.Console.WriteLine("{0} success!", i);
                }
                catch (Exception e)
                {
                    System.Console.WriteLine("{0}\n {1}", i, e);
                }
            }
        }

        System.Console.Out.WriteLine("Test End");
    }
    catch (Exception e)
    {
        System.Console.Out.WriteLine("e:Main{0}", e.Message);
    }
    System.Console.In.ReadLine();
}

域的NetBIOS名称是"test"，完整的域名是"test.com“。"dc.test.com“是DC，"gc.test.com”是GC。

它适用于"test.com“、”dc.test.com“和"gc.test.com"，但它将DirectoryServicesCOMException (0x80072020)用于”测试“和"Environment.UserDomainName”。

详细的运行结果是：

Test Start
LDAP://TEST
TEST
 System.DirectoryServices.DirectoryServicesCOMException (0x80072020): An operati
ons error occurred.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache()
   at ConsoleApplication1.Program.Main(String[] args)
LDAP://test
test
 System.DirectoryServices.DirectoryServicesCOMException (0x80072020): An operati
ons error occurred.

   at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
   at System.DirectoryServices.DirectoryEntry.Bind()
   at System.DirectoryServices.DirectoryEntry.RefreshCache()
   at ConsoleApplication1.Program.Main(String[] args)
LDAP://test.com
test.com success!
LDAP://dc.test.com
dc.test.com success!
LDAP://gc.test.com
gc.test.com success!
Test End

如果我把它作为domian管理帐户运行，一切都很好。知道是什么原因造成的吗？非常感谢！

Answer 1

你到底想做什么？如果您在一台连接到域的机器上，则只需执行new DirectoryEntry()。

至于您的错误，当您使用本地帐户登录到Windows时，UserDomainName环境变量将设置为本地计算机名。如果该机器的名称与域的NetBIOS名称相同，那么如果被混淆了，我就不会感到惊讶了。