通过 dnspod 获取本机出口ip

dnspod_ip.go

package main

import (
	"fmt"
	"net"
	"time"
)

func main() {
	conn, err := net.DialTimeout("tcp", "ns1.dnspod.net:6666", time.Second*2)
	if err != nil {
		fmt.Printf("fail dial:%v", err)
		return
	}
	defer conn.Close()

	buf := make([]byte, 16)
	conn.Read(buf)
	fmt.Println("ip:", string(buf))
}