ConnectionOptions.Impersonation 属性
定义
重要
一些信息与预发行产品相关,相应产品在发行之前可能会进行重大修改。 对于此处提供的信息,Microsoft 不作任何明示或暗示的担保。
获取或设置用于此连接中的操作的 COM 模拟级别。
public:
property System::Management::ImpersonationLevel Impersonation { System::Management::ImpersonationLevel get(); void set(System::Management::ImpersonationLevel value); };
public System.Management.ImpersonationLevel Impersonation { get; set; }
member this.Impersonation : System.Management.ImpersonationLevel with get, set
Public Property Impersonation As ImpersonationLevel
属性值
返回 ImpersonationLevel 枚举值,该值指示用于连接到 WMI 的模拟级别。
示例
以下示例连接到远程计算机,并显示有关远程计算机上的操作系统的信息。 ConnectionOptions创建 以使用所需连接选项连接到远程计算机。
using System;
using System.Management;
public class RemoteConnect
{
public static void Main()
{
// Build an options object for the remote connection
// if you plan to connect to the remote
// computer with a different user name
// and password than the one you are currently using.
// This example uses the default values.
ConnectionOptions options =
new ConnectionOptions();
options.Impersonation =
System.Management.ImpersonationLevel.Impersonate;
// Make a connection to a remote computer.
// Replace the "FullComputerName" section of the
// string "\\\\FullComputerName\\root\\cimv2" with
// the full computer name or IP address of the
// remote computer.
ManagementScope scope =
new ManagementScope(
"\\\\FullComputerName\\root\\cimv2", options);
scope.Connect();
//Query system for Operating System information
ObjectQuery query = new ObjectQuery(
"SELECT * FROM Win32_OperatingSystem");
ManagementObjectSearcher searcher =
new ManagementObjectSearcher(scope,query);
ManagementObjectCollection queryCollection = searcher.Get();
foreach ( ManagementObject m in queryCollection)
{
// Display the remote computer information
Console.WriteLine("Computer Name : {0}",
m["csname"]);
Console.WriteLine("Windows Directory : {0}",
m["WindowsDirectory"]);
Console.WriteLine("Operating System: {0}",
m["Caption"]);
Console.WriteLine("Version: {0}", m["Version"]);
Console.WriteLine("Manufacturer : {0}",
m["Manufacturer"]);
}
}
}
Imports System.Management
Public Class RemoteConnect
Public Overloads Shared Function Main( _
ByVal args() As String) As Integer
' Build an options object for the remote connection
' if you plan to connect to the remote
' computer with a different user name
' and password than the one you are currently using
Dim options As ConnectionOptions
options = New ConnectionOptions
options.Impersonation = 3
' System.Management.ImpersonationLevel.Impersonate = 3
' Make a connection to a remote computer.
' Replace the "FullComputerName" section of the
' string "\\FullComputerName\root\cimv2" with
' the full computer name or IP address of the
' remote computer.
Dim scope As ManagementScope
scope = New ManagementScope( _
"\\FullComputerName\root\cimv2", options)
scope.Connect()
' Query system for Operating System information
Dim query As ObjectQuery
query = New ObjectQuery( _
"SELECT * FROM Win32_OperatingSystem")
Dim searcher As ManagementObjectSearcher
searcher = _
New ManagementObjectSearcher(scope, query)
Dim queryCollection As ManagementObjectCollection
queryCollection = searcher.Get()
Dim m As ManagementObject
For Each m In queryCollection
' Display the remote computer information
Console.WriteLine("Computer Name : {0}", _
m("csname"))
Console.WriteLine("Windows Directory : {0}", _
m("WindowsDirectory"))
Console.WriteLine("Operating System: {0}", _
m("Caption"))
Console.WriteLine("Version: {0}", m("Version"))
Console.WriteLine("Manufacturer : {0}", _
m("Manufacturer"))
Next
Return 0
End Function
End Class
注解
当提供程序是受信任的应用程序或服务时,设置 ImpersonationLevel.Impersonate 是有利的。 它使提供程序无需对请求的操作执行客户端标识和访问检查。 但是,如果出于某种原因无法信任提供程序,则允许它模拟客户端可能会构成安全威胁。 在这种情况下,建议客户端将此属性设置为较小的值,例如 ImpersonationLevel.Identify。 请注意,这可能会导致提供程序无法执行请求的操作,因为缺少足够的权限或无法执行访问检查。
属性值
要用于此连接中的操作的 COM 模拟级别。 默认值 ImpersonationLevel.Impersonate为 ,指示 WMI 提供程序可以在此连接中执行请求的操作时模拟客户端。
.NET Framework 安全性
对直接调用方的完全信任。 此成员不能由部分信任的代码使用。 有关详细信息,请参阅 使用部分受信任的代码中的库。
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