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C#检测远程计算机端口是否打开

OC/C/C++ 水墨上仙 2749次浏览

这段C#代码用于检测远程计算机的3389端口是否处理打开状态,可以根据实际需要设置其它端口



using System; 
using System.Collections.Generic; 
using System.Text; 
using System.Net.NetworkInformation;

namespace test 
{ 
    class Program 
    {


        static void Main(string[] args) 
        { 
            GetTcpConnections(); 
        }

 

        public static void GetTcpConnections() 
        { 
            //code from http://www.75271.com/codes

            IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties(); 
       
            TcpConnectionInformation[] connections = properties.GetActiveTcpConnections(); 
            foreach (TcpConnectionInformation t in connections) 
            { 
                Console.Write("Local endpoint: {0} ", t.LocalEndPoint.ToString()); 
                Console.Write("Remote endpoint: {0} ", t.RemoteEndPoint.ToString()); 
                Console.WriteLine("{0}", t.State); 
            } 
            Console.WriteLine(); 
            Console.ReadLine(); 
        }


    } 
}

 

{--运行结果:--

Local endpoint: 127.0.0.1:1025 Remote endpoint: 127.0.0.1:1026 Established 
Local endpoint: 127.0.0.1:1026 Remote endpoint: 127.0.0.1:1025 Established 
Local endpoint: 127.0.0.1:1028 Remote endpoint: 127.0.0.1:16992 CloseWait 
Local endpoint: 127.0.0.1:1110 Remote endpoint: 127.0.0.1:4900 Established 
Local endpoint: 127.0.0.1:2754 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:2762 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:2773 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:2913 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:3014 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:3531 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:4012 Remote endpoint: 127.0.0.1:1110 CloseWait 
Local endpoint: 127.0.0.1:4900 Remote endpoint: 127.0.0.1:1110 Established


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