英文:
Golang DNS resolution not working
问题
我一直在阅读，但就是找不到解决办法。
我在Google Cloud上打开了一个VPS，在Ubuntu上启动了一个实例，并运行了一个我用Go编写的Web服务器，监听在80端口。我还在我的国家注册了一个域名www.crosslogic.com.ar，委派如下：
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，我收到ERR_NAME_RESOLUTION_FAILED错误。
我在intodns.com/crosslogic.com.ar上进行了测试，检查了以下错误：
- 由您的域名服务器报告的缺少名称服务器。您应该已经知道您的域名服务器上的NS记录缺失，所以这里再次提醒您：
ns2.crosslogic.com.ar.
ns1.crosslogic.com.ar.
- 没有有效的SOA记录返回！
- 错误：我无法获取www.crosslogic.com.ar的任何A记录！
（我只进行缓存请求，如果您最近添加了WWW A记录，可能不会显示在这里。）
这是代码：
package main
import (
"net/http"
)
func main() {
// 生成一个包含计算详情的HTML。
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)
}
}
我在Linux中是否缺少任何配置？这些NS记录、A记录和SOA记录是我需要在服务器上配置的吗？难道http/net不会处理这些事情吗？为什么请求无法到达我的80端口？
英文:
I'be been reading a lot but I just can't find a solution.
I opened a VPS in Google Cloud, started an instance with Ubuntu and runned a web server i've written in Go listening in port 80. I also registered a domain in my country www.crosslogic.com.ar which delegated like this:
n1.crosslogic.com.ar 130.211.196.55
n2.crosslogic.com.ar 130.211.196.55
(Two were required but I only had one IP)
When I type the IP in the browser everything everything works fine, but when I try to reach the server using www.crosslogic.com.ar, or crosslogic.com.ar, or n1.crosslogic.com.ar I get ERR_NAME_RESOLUTION_FAILED.
I did this test intodns.com/crosslogic.com.ar to check the folowing errors:
-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.)
This is the code:
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)
}
}
Am I missing any configuration in Linux? Those NS Records, A records and SOA is something I need to configure in my server? Shoudln't http/net be handling this stuff? Why request don't reach my port 80?
答案1
得分: 1
问题与您的代码无关。您的DNS未正确注册。运行nslookup时，我得到以下结果：
$ nslookup n1.crosslogic.com.ar
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
$ nslookup n2.crosslogic.com.ar
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
DNS请求超时。
超时时间为2秒。
英文:
The problem has nothing to do with your code. Your DNS is not registered properly. When running nslookup I get the following:
$ 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.
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