我们的DNS qianalysis.com
托管在Digitalocean中。我需要将子域aws.qianalysis.com
移动到Amazon路由53并将此子域指向Amzaon弹性负载均衡器实例http://a1626874f2f1011e7937712000d3b863-200559730.us-east-1.elb.amazonaws.com
。我根据亚马逊路线53的这个文档完成了以下步骤:
http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/CreatingNewSubdomain.html
在亚马逊路线53中为子域aws.qianalysis.com
创建了一个托管区域。
然后,创建了一个A
记录集,其中包含上述ELB实例的别名。
aws.qianalysis.com
的4个名称服务器作为NS记录。名称服务器是:ns-842.awsdns-41.net., ns-244.awsdns-30.com., ns-1514.awsdns-61.org., ns-2015.awsdns-59.co.uk.
但如果我现在尝试通过浏览器访问aws.qianalysis.com
,结果是:
site can’t be reached
aws.qianalysis.com took too long to respond.
之后,我尝试进行一些故障排除,以确定DNS是否配置正确并运行以下查询:
$ nslookup aws.qianalysis.com
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: aws.qianalysis.com
Address: 52.207.24.56
Name: aws.qianalysis.com
Address: 34.202.99.171
$ nslookup a1626874f2f1011e7937712000d3b863-200559730.us-east-1.elb.amazonaws.com
Server: 127.0.1.1
Address: 127.0.1.1#53
Non-authoritative answer:
Name: a1626874f2f1011e7937712000d3b863-200559730.us-east-1.elb.amazonaws.com
Address: 52.207.24.56
Name: a1626874f2f1011e7937712000d3b863-200559730.us-east-1.elb.amazonaws.com
Address: 34.202.99.171
$ host -t ns aws.qianalysis.com
aws.qianalysis.com name server ns-1514.awsdns-61.org.
aws.qianalysis.com name server ns-2015.awsdns-59.co.uk.
aws.qianalysis.com name server ns-244.awsdns-30.com.
aws.qianalysis.com name server ns-842.awsdns-41.net.
$ dig +trace aws.qianalysis.com
; <<>> DiG 9.9.5-3ubuntu0.14-Ubuntu <<>> +trace aws.qianalysis.com
;; global options: +cmd
. 27722 IN NS m.root-servers.net.
. 27722 IN NS l.root-servers.net.
. 27722 IN NS f.root-servers.net.
. 27722 IN NS b.root-servers.net.
. 27722 IN NS e.root-servers.net.
. 27722 IN NS h.root-servers.net.
. 27722 IN NS i.root-servers.net.
. 27722 IN NS j.root-servers.net.
. 27722 IN NS g.root-servers.net.
. 27722 IN NS c.root-servers.net.
. 27722 IN NS a.root-servers.net.
. 27722 IN NS d.root-servers.net.
. 27722 IN NS k.root-servers.net.
. 27722 IN RRSIG NS 8 0 518400 20170516050000 20170503040000 14796 . gCBRAPt6Mu2qkxfuwDohzVqCpvUeVKZmnNSYWtl/8w9oF5YKsFpyBrvE OvbTO7hcdlz6Vpz0VqEkUUTvRlzD+HTj/s4CD8lg+I2p+9+mbK/CRjx1 uPhgNhWg+/ZaLTa5CPLbZGYfoyJhYcNKItmYpzbDQK6BJuZUhTetbjtF 8JgakLBcO7ptWzaLA0XwF7mVbbYK4IeFa7Ue2QfdQbaTsqiNm/ijGOTE pFhKQfeKI/4XlwAN+87QkKoPNDAjIYVQFbX9BeQd3i4PXa6Q3gJ4HHAr Weg6fjp363c6V4VJzA7LCSARq/ry4fuG1CoaX8jtkmeM49BYpp8GzpcC 0VvcHA==
;; Received 525 bytes from 127.0.1.1#53(127.0.1.1) in 4566 ms
com. 172800 IN NS a.gtld-servers.net.
com. 172800 IN NS b.gtld-servers.net.
com. 172800 IN NS c.gtld-servers.net.
com. 172800 IN NS d.gtld-servers.net.
com. 172800 IN NS e.gtld-servers.net.
com. 172800 IN NS f.gtld-servers.net.
com. 172800 IN NS g.gtld-servers.net.
com. 172800 IN NS h.gtld-servers.net.
com. 172800 IN NS i.gtld-servers.net.
com. 172800 IN NS j.gtld-servers.net.
com. 172800 IN NS k.gtld-servers.net.
com. 172800 IN NS l.gtld-servers.net.
com. 172800 IN NS m.gtld-servers.net.
com. 86400 IN DS 30909 8 2 E2D3C916F6DEEAC73294E8268FB5885044A833FC5459588F4A9184CF C41A5766
com. 86400 IN RRSIG DS 8 1 86400 20170516050000 20170503040000 14796 . Ge+3ma50QY0R9ekOoiDuzGxpx5eT7euTgFWbA3qmwf0RdY3bTGDWHSt4 pcOCnO7es7Fr8mTkBSsVQXwfzk9L7dOb4nQ8TUTykRsP7UdYxLn9gIb6 Z//gtpb/BIKhieYXQgCKLDueGinJPFT+0tBN+k+hdgG7rY5xoU0yn/lm 9Wc6v0ElTe563IDUMnoa1OMCIj+wIEWO9YuFOXaPUEz8Uk/S5pNcTvcb MoKXcQFOwlbZU5208+fteMGQ2S2J4DTyDtxK/Ir4qA3w6HwABxCJpmn2 DIFQK2VOppKBaaxiUXvZvNu76SgTYYNgvDXGITLNVaLGUDv6TuTm303y +FLDCA==
;; Received 870 bytes from 192.203.230.10#53(e.root-servers.net) in 4418 ms
qianalysis.com. 172800 IN NS ns1.digitalocean.com.
qianalysis.com. 172800 IN NS ns2.digitalocean.com.
qianalysis.com. 172800 IN NS ns3.digitalocean.com.
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN NSEC3 1 1 0 - CK0Q1GIN43N1ARRC9OSM6QPQR81H5M9A NS SOA RRSIG DNSKEY NSEC3PARAM
CK0POJMG874LJREF7EFN8430QVIT8BSM.com. 86400 IN RRSIG NSEC3 8 2 86400 20170509044753 20170502033753 27302 com. nv2pLmsvfV0zhb2xG3WCHTVrVnGMA+6Eb6BeHy/+omyHt+d/6jTq9BzF e+xLLHGj7ddu8ugKRcEP0KawgsMYvgaxLFQfTJIis1SvdQdybpOMqCfT e1MQM/OCauaRhqM8XQZIWolPPgYEpfMELfvW8b+xqVs8YfWJnyCWXdJQ 94s=
LER81PJG42CMP2MD94DCJVIJMNNFLDL4.com. 86400 IN NSEC3 1 1 0 - LERCERUAETGQB9VTEU76H1KTP6J0607R NS DS RRSIG
LER81PJG42CMP2MD94DCJVIJMNNFLDL4.com. 86400 IN RRSIG NSEC3 8 2 86400 20170509041957 20170502030957 27302 com. Wvwv68vG1/oBfNUrnp+KvP8LYMAOgTIYnqbvOrWn48MrfDpokXNzbIvu PJ9N8w0RUTZh/H6VsdpSLNVnO+xcii4lX6b9HyJC4H8KFy3//N57STjn BJZEEqs977mYLzNWQnBth0CJndLZ2PilQqBkPnknAVoJPlDpzyBjF3nm IfE=
;; Received 731 bytes from 192.5.6.30#53(a.gtld-servers.net) in 6894 ms
aws.qianalysis.com. 1800 IN NS ns-842.awsdns-41.net.
aws.qianalysis.com. 1800 IN NS ns-244.awsdns-30.com.
aws.qianalysis.com. 1800 IN NS ns-1514.awsdns-61.org.
aws.qianalysis.com. 1800 IN NS ns-2015.awsdns-59.co.uk.
;; Received 184 bytes from 173.245.58.51#53(ns1.digitalocean.com) in 4818 ms
aws.qianalysis.com. 60 IN A 52.207.24.56
aws.qianalysis.com. 60 IN A 34.202.99.171
aws.qianalysis.com. 172800 IN NS ns-1514.awsdns-61.org.
aws.qianalysis.com. 172800 IN NS ns-2015.awsdns-59.co.uk.
aws.qianalysis.com. 172800 IN NS ns-244.awsdns-30.com.
aws.qianalysis.com. 172800 IN NS ns-842.awsdns-41.net.
;; Received 216 bytes from 205.251.192.244#53(ns-244.awsdns-30.com) in 104 ms
似乎一切都配置正确。但是可以找出无法访问子域aws.qianalysis.com背后的主要原因以及如何解决这个问题。