go dns解析

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package main

import (
	"net"
	"fmt"
	"os"
)


func main() {


	ns, err := net.LookupHost("www.baidu.com")
	if err != nil {
		fmt.Fprintf(os.Stderr, "Err: %s", err.Error())
		return
	}

	for _, n := range ns {
		fmt.Fprintf(os.Stdout, "--%s\n", n) 
	}

}

根据ip地址查找主机

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