package main

import (
	"net"
	"fmt"
)

func lookupLoop() {
	for {
		_, err := net.LookupHost("localhost")
		if err != nil {
			fmt.Println(err)
		}
	}
}


func main() {
	for i := 0; i < 500; i += 1 {
		go lookupLoop()
	}
	lookupLoop()
}