AWS – DNS无法解析到弹性IP地址

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英文:

AWS - DNS fails to Elastic IP

问题

我一直在网上搜索并严格按照指南操作,但在成功进行DNS解析方面遇到了问题,希望你能帮忙。

我有一个托管基本Web应用程序的EC2实例,并附加了弹性IP地址。导航到弹性IP成功,我可以访问该应用程序(浏览到 http://xx.xxx.xx.xxx)。

我已经通过Route 53注册了一个域名,它正在显示。我已经创建了一个托管区域 - 最初,域名服务器与域名注册不匹配,并且测试记录失败了。我已经更改了NS详细信息以与注册的域名匹配,现在测试记录成功了。

我已经在托管区域中添加了一条记录(记录类型A,我已经验证该值是弹性IP,TTL 300在简单路由上)。这导致在尝试导航到该地址时出现 ERR_NAME_NOT_RESOLVED 错误。

我想不出还要提供什么其他信息。令人恼火的是,我之前按照相同的步骤操作,第一次就成功了,但我为了进行深入调试而将实例拆除了!

安全组(入站):

sgr-08c70629989159bef	IPv4	HTTP	TCP	80	0.0.0.0/0	–
sgr-07bfd9815f5b49e27	IPv4	HTTPS	TCP	443	0.0.0.0/0	–
sgr-076d93d22a441005c	IPv4	SSH	TCP	22	109.150.228.140/32	

安全组(出站):

sgr-049ed17ff4caa8935	IPv4	HTTP	TCP	80	0.0.0.0/0	–
sgr-0fa4371f7df144f16	IPv4	HTTPS	TCP	443	0.0.0.0/0	–
sgr-028599127e1b9375d	IPv4	All traffic	All	All	0.0.0.0/0	–

我有一个公共子网,NACL如下:

入站:

100	All traffic	All	All	0.0.0.0/0	Allow
*	All traffic	All	All	0.0.0.0/0	Deny

出站:

100	All traffic	All	All	0.0.0.0/0	Allow
*	All traffic	All	All	0.0.0.0/0	Deny

谢谢!

英文:

I've been scouring online and following guidance to the letter but hitting an issue getting a successful DNS resolution, I hope you can help.

I have an EC2 instance hosting a basic web app, with an Elastic IP attached to that instance. Navigating to the Elastic IP is successful and I can access the app (browsing to http://xx.xxx.xx.xxx).

I've registered a domain through Route 53 and that is displaying. I've created a hosted zone - initially the Name Servers didn't match the domain registration and a Test Record failed. I've changed the NS details to match that of the Registered Domain and the Test Record now succeeds.

I've added a record to the Hosted Zone (Record type A, I've verified the value is the Elastic IP, TTL 300 on Simple Routing). This results in a ERR_NAME_NOT_RESOLVED error when trying to navigate to the address.

I can't think of what other information to provide. Annoyingly I followed the same steps previously and it worked first time but I tore the instance down for intense debugging!

Security Group (Inbound):

sgr-08c70629989159bef	IPv4	HTTP	TCP	80	0.0.0.0/0	–
sgr-07bfd9815f5b49e27	IPv4	HTTPS	TCP	443	0.0.0.0/0	–
sgr-076d93d22a441005c	IPv4	SSH	TCP	22	109.150.228.140/32	

Security Group (Outbound):

sgr-049ed17ff4caa8935	IPv4	HTTP	TCP	80	0.0.0.0/0	–
sgr-0fa4371f7df144f16	IPv4	HTTPS	TCP	443	0.0.0.0/0	–
sgr-028599127e1b9375d	IPv4	All traffic	All	All	0.0.0.0/0	–

I have one public subnet for which the NACLs are:

Inbound:
100	All traffic	All	All	0.0.0.0/0	Allow
*	All traffic	All	All	0.0.0.0/0	Deny

Outbound: 
100	All traffic	All	All	0.0.0.0/0	Allow
*	All traffic	All	All	0.0.0.0/0	Deny

Thanks!

答案1

得分: 1

我已解决此问题。对于其他遇到相同问题的人 - 请在您注册的域中更正域名服务器,而不是在托管区域中。

英文:

I've resolved this. For anyone else having the same issue - correct the Name Servers in your Registered Domain, rather than in your Hosted Zone.

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  • 本文由 发表于 2023年7月20日 14:19:43
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