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如何排除 Route 53 托管区域的故障？

tag-icon • tag-icon domain-name-system amazon-web-services amazon-route53
如何排除 Route 53 托管区域的故障？

大约一周前，我关注了有关创建子域托管区域的 AWS Route 53 说明处理“request.i-codedesign.com”的流量。

托管区域配置了以下 NS 服务器：

ns-1009.awsdns-62.net。
ns-1198.awsdns-21.org。
ns-1.awsdns-00.com。
ns-1807.awsdns-33.co.uk。

另外一周前，我更新了我们的 DNS 服务（Dotster）以添加上述名称服务器记录： Dotster 列出与 i-codedesign.com 相关的 DNS 记录

一段时间内，这种方法运行良好，流量能够到达目标服务器。

在过去的一周内，它停止工作了。我可以采取哪些步骤来解决这个问题？nslookup request.i-codedesign.com ns-1.awsdns-00.com例如，我试过，但它只返回四组“DNS 请求超时。超时为 2 秒。”

编辑

当我从家里尝试时，地址解析了，我可以看到我的网络应用程序。

从这里开始，这是 nslookup 结果：

C:\jhfrench>nslookup
Default Server:  Wireless_Broadband_Router.home
Address:  192.168.1.1

> set debug
> request.i-codedesign.com
Server:  Wireless_Broadband_Router.home
Address:  192.168.1.1

------------
Got answer:
    HEADER:
        opcode = QUERY, id = 2, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        request.i-codedesign.com.home, type = A, class = IN
    AUTHORITY RECORDS:
    ->  home
        ttl = 3600 (1 hour)
        primary name server = home
        responsible mail addr = (root)
        serial  = 10274
        refresh = 3600 (1 hour)
        retry   = 3600 (1 hour)
        expire  = 3600 (1 hour)
        default TTL = 3600 (1 hour)

------------
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 3, rcode = NXDOMAIN
        header flags:  response, auth. answer, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        request.i-codedesign.com.home, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  home
        ttl = 3600 (1 hour)
        primary name server = home
        responsible mail addr = (root)
        serial  = 10275
        refresh = 3600 (1 hour)
        retry   = 3600 (1 hour)
        expire  = 3600 (1 hour)
        default TTL = 3600 (1 hour)

------------
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 4, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        request.i-codedesign.com, type = A, class = IN
    ANSWERS:
    ->  request.i-codedesign.com
        internet address = 54.225.172.91
        ttl = 300 (5 mins)

------------
Non-authoritative answer:
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 5, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        request.i-codedesign.com, type = AAAA, class = IN
    AUTHORITY RECORDS:
    ->  request.i-codedesign.com
        ttl = 900 (15 mins)
        primary name server = ns-1828.awsdns-36.co.uk
        responsible mail addr = awsdns-hostmaster.amazon.com
        serial  = 1
        refresh = 7200 (2 hours)
        retry   = 900 (15 mins)
        expire  = 1209600 (14 days)
        default TTL = 86400 (1 day)

------------
Name:    request.i-codedesign.com
Address:  54.225.172.91

答案1

$  ~  dig request.i-codedesign.com ns

; <<>> DiG 9.8.3-P1 <<>> request.i-codedesign.com ns
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 6399
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;request.i-codedesign.com.  IN  NS

;; AUTHORITY SECTION:
i-codedesign.com.   10798   IN  SOA ns3.webminders.com. root.i-codedesign.com. 1316218819 10800 1800 604800 300

;; Query time: 42 msec
;; SERVER: 192.168.3.1#53(192.168.3.1)
;; WHEN: Fri Jun 20 15:46:30 2014
;; MSG SIZE  rcvd: 98

该区域没有 NS 记录，这是一个问题。我发出的查询应该返回您在答案中引用的四个名称服务器。

在您的i-codedesign.com区域中，您需要为子域创建 NS 记录request。

关于您发布的名称服务器记录，这些记录适用于 i-codedesign.com。您仍需要为请求子域创建 NS 记录。

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