实现具有动态主机IP的域名解析

p;   PrintWriter sout=new PrintWriter(new FileWriter(DNSFILEPATH + DNSFILE) , true);
      String s;
      while ((s=sin.readLine()) != null)
         {
           if (s.startsWith("host"))
           { s="host IN A " + HOSTIP;
             sout.println(s);
             s="@ IN A " + HOSTIP;
            }
             sout.println(s);
         }
         //System.out.println("User:" + User );
         //System.out.println("DNSFILE:" + DNSFILE );
         //System.out.println("HOSTIP:" + HOSTIP );

         //ndc reload
         String command="ndc reload " + DNSFILE ;
         java.lang.Runtime.getRuntime().exec(command);

}
catch ( Exception e)
{ System.out.println(e);
}
}

private Socket incoming;
private int counter;

}

2.客户机(windows / linux)
==============================================================
# 客户端每次启动时加入到开机启动(或进程中): SockTest.java
import java.io.*;
import java.net.*;

public class SocketTest
{  public static void main(String args)
  { try
      { Socket s=new Socket("A.A.A.A",8189);
        BufferedReader in=new BufferedReader(new InputStreamReader(s.getInputStream()));
        PrintWriter out=new PrintWriter(s.getOutputStream(),true);


       InetAddress localHostAddress =InetAddress.getLocalHost() ;  //get LocalHost Ip
       out.println("LAguest");
       out.println("LByourdomain.com");
       out.println("LC" + localHostAddress.getHostAddress()  );

       out.close();
       s.close();

  }
       catch (IOException e)
   { System.out.println(e);
   }
   }
}

=========================================================
dns 样本文件: ( yourdomain.com.static)
@ ns.dnsserver.com  xxxxx
      &nb