networking - Golang DNS 解析不起作用

Question

我已经阅读了很多书，但我就是找不到解决方案。

我在谷歌云中打开了一个 VPS，用 Ubuntu 启动了一个实例，并运行了一个我用 Go 编写的网络服务器，在端口 80 监听。我还在我的国家注册了一个域名 www.crosslogic.com.ar ，委托(delegate)如下这个:

n1.crosslogic.com.ar    130.211.196.55
n2.crosslogic.com.ar    130.211.196.55

(需要两个，但我只有一个IP)

当我在浏览器中输入 IP 时，一切正常，但当我尝试使用 www.crosslogic.com.ar、crosslogic.com.ar 或 n1.crosslogic.com.ar 访问服务器时，我得到ERR_NAME_RESOLUTION_FAILED。

我在 dns.com/crosslogic.com.ar 中做了这个测试来检查以下错误:

-Missing nameservers reported by your nameservers. You should already know that your NS records at your nameservers are missing, so here it is again:
ns2.crosslogic.com.ar.
ns1.crosslogic.com.ar.

-No valid SOA record came back!

-ERROR: I could not get any A records for www.crosslogic.com.ar!
(I only do a cache request, if you recently added a WWW A record, it might not show up here.) 

这是代码:

package main

import (
    "net/http"
)

func main() {
    // Genero un html con los detalles del calculo.


    http.HandleFunc("/", indexHandler)
    err := http.ListenAndServe(":80", nil)
    if err != nil {
        fmt.Println(err.Error())
    }

}

func indexHandler(w http.ResponseWriter, r *http.Request) {

    temp, err := template.ParseFiles("index.html")
    if err != nil {
        panic(err)
    }

    err = temp.Execute(w, nil)
    if err != nil {
        panic(err)
    }
}

我是否缺少 Linux 中的任何配置？那些 NS 记录、A 记录和 SOA 是我需要在我的服务器中配置的东西吗？ http/net 不应该处理这些东西吗？为什么请求没有到达我的 80 端口？

Answer 1

问题与您的代码无关。您的 DNS 未正确注册。运行 nslookup 时，我得到以下信息:

$ nslookup n1.crosslogic.com.ar

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.

$ nslookup n2.crosslogic.com.ar

DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.
DNS request timed out.
    timeout was 2 seconds.