Good point is: it’s hard to make the dns server down
Yes, diversity of DNS service provider enhances the security and stability.
Bad point is: you have to keep the data be consistent by hand without some
automated tools (do we need one for this?) . Oh, you have to do it four
times!!!. The resolver may has to ask again to the authoritative server for
the glue record which was not put in the additional section since the udp
buffer is full.
Whether DNS message has space for the glue records depends on the length of
the domain, and note that DNS message can accommodate 13 root nameservers and
13 glue records.
From:[email protected]
[mailto:[email protected]] On Behalf Of Feng He
Sent: Tuesday, November 06, 2012 10:13 AM
To: DNS Operations List
Subject: [dns-operations] using different DNS providers together
Hello,
One of our customers has been using 4 different providers for his domain DNS:
Domain servers in listed order:
NS1.CLOUDWEBDNS.COM
NS2.CLOUDWEBDNS.COM
F1G1NS1.DNSPOD.NET
F1G1NS2.DNSPOD.NET
ELLE.NS.CLOUDFLARE.COM
NORM.NS.CLOUDFLARE.COM
NS3.CLOUDWEBDNS.COM
NS4.CLOUDWEBDNS.COM
NS43.DOMAINCONTROL.COM
NS44.DOMAINCONTROL.COM
It inclouds godaddy, cloudflare, dnsbed and dnspod.
Does this have any hidden problem for resolving?
Thanks.
--
王正
________________________________________
政务和公益机构域名注册管理中心
电 话:(010)-52035185
邮 箱:[email protected]
地 址:北京市朝阳区西坝河光熙门北里甲31号
邮 编:100028
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