<p>Dear Amazon Web Services Customer,</p>" [3 ?; l2 [0 V0 V0 Z5 N9 N4 \; o
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<p>We are excited to announce that Route 53 DNS Failover now supports 9 Q$ {: C( F& B% S
Elastic Load Balancing (ELB) endpoints. Starting today, you can use 3 k8 G" _9 c u5 J# t
Route 53’s existing health checking and DNS failover features for & Y* i( v' `1 e3 r
applications running behind an ELB, to increase redundancy and j- ?( n7 ~: T
availability for these apps.</p>2 q8 d: b9 @& n
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<p>With DNS Failover, Amazon Route 53 can help detect an outage of your / p4 @4 E6 t% M( c6 m* k7 S
website and redirect your end users to alternate locations where your $ B4 B: f4 G3 f2 D
application is operating properly. When you enable this feature, Route ( K. z) y1 q3 {* T- N$ W
53 uses health checks—regularly making Internet requests to your 7 S: z. G& z" O- M# N$ p3 Y
application’s endpoints from multiple locations around the world—to $ q% d9 _& y# e$ M# k: {
determine whether each endpoint of your application is up or down. </p>1 r% q1 j6 k! W+ X5 Y. K) M6 [
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<p>For ELB endpoints, Route 53 evaluates the health of the load balancer 3 T4 E' f! b& y/ Y! }) i p
itself and the health of your application running on the EC2 instances . R* y* p& ]1 p; n9 Z2 _
behind it. If any part of the stack goes down, Route 53 detects the 9 a& N. J2 |# [2 |' u) g; c
failure, routes traffic away from the load balancer, and directs traffic0 H0 D& r$ ~( ~: H: W
to other healthy ELB endpoints. Route 53 DNS Failover also supports EC2 - a! h& S5 D: X: b; E9 a
endpoints as well as endpoints located in your own datacenter.</p>) Z8 U# o& _9 N6 c9 ~6 P7 i( V3 a% I
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<p>Using Route 53 DNS Failover, you can run your primary application * X6 ~* U6 J( `
simultaneously in multiple AWS regions around the world. Route 53 ( s9 C# |" u) h: X
automatically removes from service any region where your application is " a: X+ ~) M* r+ g9 P9 ]
unavailable. You can also take advantage of a simple backup site hosted 6 M& z. P I$ e1 \4 a( z: Y/ m' x- K
on Amazon Simple Storage Service (Amazon S3), with Route 53 directing 8 i; @: ]: J8 [. i
users to this backup site in the event that your application becomes ' {. o3 t" `. @3 n% W
unavailable.</p>6 P" B8 A- `% }. ?8 l& D v- N: ~
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<p>Health checks of Amazon ELB endpoints are free, and getting started is easy. To learn more, <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=SUOGRM79MBBGDQ7LV8TUA2X4AYIA&T=C&U=http%3A%2F%2Faws.amazon.com%2Froute53%3Fref_%3Dpe_2170_30194830_8">visit the Route 53 product page</a> or review our walkthrough in the <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=XGI2ROQULL3C7OX10QVMHGAWVRMA&T=C&U=http%3A%2F%2Fdocs.aws.amazon.com%2FRoute53%2Flatest%2FDeveloperGuide%2Fdns-failover.html%3Fref_%3Dpe_2170_30194830_9">Amazon Route 53 Developer Guide</a>.</p>* V. R; u- h6 z- V* U
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<p>Also, please feel free to join our <a href="http://www.amazon.com/gp/r.html?R=2EMCE4T8E0NWD&C=3STR8RC5Q6H1Y&H=J5S7YSYDGDMA3VFQM4MDM14GRX4A&T=C&U=http%3A%2F%2Fw.on24.com%2Fr.htm%3Fe%3D622099%26s%3D1%26k%3D3563EF264F8961EAF9AD217B6CE34446%26partnerref%3DLE%26ref_%3D7">webinar at 10:00 am PDT on July 9, 2013</a> to learn more about DNS Failover and the high-availability architecture options that it makes possible.</p> ' i% b$ w7 V0 Z* V& Z7 G) b
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<p>Sincerely, ; J4 z X o- \. y4 y
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The Amazon Web Services Team</p>
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对于使用route53的同学是个好事，简单的 geo dns + failover. \2 D. e1 U( O: Z3 Q
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发表于 2013-6-4 10:50:32
发表于 2013-6-4 11:54:54
，看不懂
发表于 2013-6-4 19:50:51
发表于 2013-6-5 00:27:56
楼主
