DNS与Socket编程实践-优快云博客

本文通过实例演示了如何使用C#进行DNS解析获取主机IP地址，并介绍了如何利用Socket进行网络连接建立的过程。从获取域名对应的IP地址到创建并连接Socket，详细地展示了网络编程中的关键技术点。

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IPAddress[] ips=Dns.GetHostAddress("www.baidu.com");        //ips为主机ip地址
foreach(IPAddress ip in ips)                                                      ip为ip地址
{
string i=ip.ToString();                                                             Dns.GetHostName();//本机名
}

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IPAddress[] ips =Dns.GetHostAddress("192.168.1.97");
foreach (IPAddress ip in ips)
{

}

-------------------------------------------

IPEndPoint ipendpoint =new IPEndPoint("192.168.1.97“,80);
----------------------------------------------

Socket socket=null;
IPHostEntry iphostentry=null;
iphosstentry=Dns.GetHostEntry(server);
foreach(IPAddress address in iphostentry.AddressList)
{
IPEndPoint ipendpoint=new IPEndPoint(address ,port);
Socket newSocket=new Socket(ipendpoint.AddressFamily,SocketType.Stream,ProtocolType.Tcp);
newSocket.Connect(ipendpoint);
if(newSocket.Connect)
{
socket=newSocket;
break;
    }
else{
continue;
    }
return socket;
}

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TcpListener tpclistener=new TcpListener("192.168.1.98",80);
tcplistener.Start();