IIS程序访问NAS，一般有两种情况，加域和没加域
1、加域后，什么都好办，可以通过两种方式认证
A、采用域帐户认证
B、NAS资源可以直接授权给指定计算机访问
2、不加域，那一般有三种方式设置访问权限
A、通过指定程序的用户名和密码访问（这里指定的不是本地的用户名和密码，而是NAS的用户名和密码）
B、不指定用户名和密码，直接通过pass-through authentication方式访问，其规则为：
首先通过用户的真实id进行验证
如果用户没有授权，会尝试使用应用池的账户进行验证
如果应用池账号为NetworkService或LocalSystem，将使用计算机账号进行验证
采取这样的方式IIS会提出警告，因为IIS只有在运行之后，才知道能否访问NAS
C、通过代码实现
//NAS访问封装类
public class NetworkDrive
{
public enum ResourceScope
{
RESOURCE_CONNECTED = 1,
RESOURCE_GLOBALNET,
RESOURCE_REMEMBERED,
RESOURCE_RECENT,
RESOURCE_CONTEXT
}
public enum ResourceType
{
RESOURCETYPE_ANY,
RESOURCETYPE_DISK,
RESOURCETYPE_PRINT,
RESOURCETYPE_RESERVED
}
public enum ResourceUsage
{
RESOURCEUSAGE_CONNECTABLE = 0x00000001,
RESOURCEUSAGE_CONTAINER = 0x00000002,
RESOURCEUSAGE_NOLOCALDEVICE = 0x00000004,
RESOURCEUSAGE_SIBLING = 0x00000008,
RESOURCEUSAGE_ATTACHED = 0x00000010,
RESOURCEUSAGE_ALL = (RESOURCEUSAGE_CONNECTABLE | RESOURCEUSAGE_CONTAINER | RESOURCEUSAGE_ATTACHED),
}
public enum ResourceDisplayType
{
RESOURCEDISPLAYTYPE_GENERIC,
RESOURCEDISPLAYTYPE_DOMAIN,
RESOURCEDISPLAYTYPE_SERVER,
RESOURCEDISPLAYTYPE_SHARE,
RESOURCEDISPLAYTYPE_FILE,
RESOURCEDISPLAYTYPE_GROUP,
RESOURCEDISPLAYTYPE_NETWORK,
RESOURCEDISPLAYTYPE_ROOT,
RESOURCEDISPLAYTYPE_SHAREADMIN,
RESOURCEDISPLAYTYPE_DIRECTORY,
RESOURCEDISPLAYTYPE_TREE,
RESOURCEDISPLAYTYPE_NDSCONTAINER
}
[StructLayout(LayoutKind.Sequential)]
private class NETRESOURCE
{
public ResourceScope dwScope = 0;
public ResourceType dwType = 0;
public ResourceDisplayType dwDisplayType = 0;
public ResourceUsage dwUsage = 0;
public string lpLocalName = null;
public string lpRemoteName = null;
public string lpComment = null;
public string lpProvider = null;
}
[DllImport("mpr.dll")]
private static extern int WNetAddConnection2(NETRESOURCE lpNetResource, string lpPassword, string lpUsername, int dwFlags);
public static int MapNetworkDrive(string remotePath, string localDrive, string userName, string passWord)
{
NETRESOURCE myNetResource = new NETRESOURCE();
myNetResource.lpLocalName = localDrive;
myNetResource.lpRemoteName = remotePath;
myNetResource.lpProvider = null;
int result = WNetAddConnection2(myNetResource, passWord, userName, 0);
return result;
}
}
//调用示例
NetworkDrive.MapNetworkDrive("NAS paht with ip", "Local Driver Letter", "user", "password");