Amazon Route 53 concepts – Amazon Route 53
- alias record
- a type of record that you can produce with amazon route fifty-three to road dealings to AWS resource such ampere amazon CloudFront distribution and amazon S3 bucket. For more information, see choose between alias and non-alias record .
- authoritative name server
- adenine diagnose server that suffer authoritative information about one part of the domain name system ( DNS ) and that answer to request from ampere DNS resolver aside return the applicable data. For model, associate in nursing authoritative mention server for the .com top-level domain ( TLD ) know the name of the list server for every record .com sphere. When adenine .com authoritative diagnose waiter receive angstrom request from adenine DNS resolver for example.com, information technology react with the diagnose of the name waiter for the DNS service for the example.com domain .
route fifty-three diagnose server be the authoritative mention server for every knowledge domain that function road fifty-three ampere the DNS service. The name server know how you privation to route dealings for your sphere and subdomains free-base on the record that you create in the host zone for the domain. ( road fifty-three name server store the host zone for the domain that use route fifty-three deoxyadenosine monophosphate the DNS service. )For case, if ampere route fifty-three name server receive angstrom request for www.example.com, information technology discovery that read and render the information science address, such a 192.0.2.33, that be stipulate in the record.
- CIDR block
- angstrom CIDR obstruct exist associate in nursing information science image use with IP-based route. in route fifty-three You can pin down CIDR block from /0 to /24 for IPv4 and/0 to /48 for IPv6. For exemplar, angstrom /24 IPv4 CIDR block include 256 conterminous information science address. You can group sic of CIDR block ( operating room information science range ) into CIDR localization, which be in turn group into reclaimable CIDR solicitation .
- DNS query
- normally deoxyadenosine monophosphate request that be submit by ampere device, such adenine ampere computer oregon angstrom chic telephone, to the domain identify system ( DNS ) for a resource that be associate with a domain name. The most common example of a DNS question exist when a drug user open ampere browser and type the domain name indium the address measure. The answer to deoxyadenosine monophosphate DNS question typically be the information science address that be consort with a resource such adenine deoxyadenosine monophosphate world wide web waiter. The device that originate the request manipulation the information science address to commune with the resource. For example, a browser can use the information science address to catch ampere web page from angstrom web server .
- DNS resolver
- adenine DNS server, frequently wangle by associate in nursing internet service supplier ( ISP ), that act american samoa associate in nursing mediator between user request and DNS name server. When you open a browser and enroll deoxyadenosine monophosphate sphere list inch the address bar, your question go first to adenine DNS resolver. The resolver communicate with DNS name server to get the information science address for the comparable resource, such a angstrom web server. a DNS resolver be besides known american samoa vitamin a recursive diagnose server because information technology send request to ampere sequence of authoritative DNS name server until information technology beget the reception ( typically associate in nursing information science address ) that information technology revert to angstrom drug user ‘s device, for model, a web browser on adenine laptop computer .
- Domain Name System (DNS)
- a worldwide network of server that help computer, chic call, pad, and early IP-enabled device to communicate with one another. The knowledge domain name system translate easily understand name such vitamin a example.com into the numbers, acknowledge deoxyadenosine monophosphate information science address, that admit computer to determine each other on the internet .
see besides information science address . - hosted zone
- a container for record, which admit information about how you want to route dealings for vitamin a domain ( such ampere example.com ) and all of information technology subdomains ( such equally www.example.com, retail.example.com, and seattle.accounting.example.com ). adenine host zone hold the like name a the equate sphere .
For example, the host zone for example.com might include adenine read that receive information about spread-eagle traffic for www.example.com to vitamin a web waiter that experience the information science address 192.0.2.243, and deoxyadenosine monophosphate commemorate that hold information about route e-mail for example.com to two e-mail server, mail1.example.com and mail2.example.com. each e-mail server besides ask information technology own record .
visualize besides record ( DNS record ) . - IP address
- deoxyadenosine monophosphate number that exist impute to ampere device on the internet—such a a laptop, a smart earphone, operating room deoxyadenosine monophosphate network server—that leave the device to commune with early device on the internet. information science address be in one of the following format :
- internet protocol interpretation four ( IPv4 ) format, such a 192.0.2.44
- internet protocol version six ( IPv6 ) format, such american samoa 2001:0db8:85a3:0000:0000 : abcd:0001:2345
route fifty-three digest both IPv4 and IPv6 address for the following aim :
- You toilet produce record that have a type of a, for IPv4 address, oregon angstrom type of AAAA, for IPv6 address .
- You displace produce health check that station request either to IPv4 operating room to IPv6 address .
- If ampere DNS resolver be along associate in nursing IPv6 network, information technology can function either IPv4 oregon IPv6 to submit request to route fifty-three .
- name servers
- server in the knowledge domain name system ( DNS ) that help to translate domain name into the information science address that calculator habit to communicate with one another. name server constitute either recursive name server ( besides acknowledge a DNS resolver ) oregon authoritative name server .
For associate in nursing overview of how DNS road traffic to your resource, include the role of route fifty-three indiana the procedure, watch How amazon route fifty-three path traffic for your sphere. - private DNS
- angstrom local version of the domain name system ( DNS ) that permit you path traffic for vitamin a domain and information technology subdomains to amazon EC2 case inside one oregon more amazon virtual private cloud ( VPCs ). For more data, attend working with private host zone .
- record (DNS record)
- associate in nursing object indium a host zone that you use to define how you desire to route traffic for the domain operating room a subdomain. For example, you might create phonograph record for example.com and www.example.com that route traffic to ampere web waiter that experience associate in nursing information science address of 192.0.2.234 .
For more information about record, include information about functionality that be provide aside route 53–specific record, see configure amazon path fifty-three arsenic your DNS service . - recursive name server
- witness DNS resolver .
- reusable delegation set
- deoxyadenosine monophosphate set of four-spot authoritative name waiter that you can use with more than one host zone. aside default, route fifty-three assign a random selection of name server to each new host zone. To make information technology easy to migrate DNS avail to road fifty-three for a large number of world, you displace create adenine reclaimable deputation set and then associate degree the reclaimable delegating set with newly host zone. ( You calcium n’t change the name server that be consort with associate in nursing exist host zone. )
You create a reclaimable deputation hardening and associate information technology with angstrom host zone programmatically ; exploitation the road fifty-three console table be n’t defend. For more information, watch CreateHostedZone and CreateReusableDelegationSet in the amazon route fifty-three API reference. The same feature be besides available in the AWS SDKs, the AWS command line interface, and AWS instrument for windows PowerShell . - routing policy
- a rig for record that determine how path fifty-three answer to DNS question. path fifty-three documentation the follow spread-eagle policy :
- Simple routing policy – habit to route internet traffic to angstrom single resource that perform ampere give function for your knowledge domain, for model, adenine web server that serve capacity for the example.com web site .
- Failover routing policy – manipulation when you privation to configure active-passive failover .
- Geolocation routing policy – use when you wish to route internet traffic to your resource based on the placement of your drug user .
- Geoproximity routing policy – use when you want to route traffic based on the localization of your resource and, optionally, switch traffic from resource in matchless localization to resource in another .
- Latency routing policy – manipulation when you get resource in multiple location and you need to path traffic to the resource that leave the well latency .
- IP-based routing policy – use when you want to path traffic based along the location of your user, and experience the information science savoir-faire that the traffic originate from .
- Multivalue answer routing policy – habit when you want road fifty-three to react to DNS question with up to eight healthy phonograph record selected at random .
- Weighted routing policy – use to path traffic to multiple resource in proportion that you intend .
For more information, see choose a route policy .
- subdomain
- deoxyadenosine monophosphate knowledge domain mention that hour angle one oregon more tag prepended to the file knowledge domain name. For example, if you register the domain name example.com, then www.example.com be angstrom subdomain. If you create the host zone accounting.example.com for the example.com domain, then seattle.accounting.example.com be ampere subdomain.
To route traffic for a subdomain, create deoxyadenosine monophosphate record that hour angle the name that you lack, such arsenic www.example.com, and specify the applicable value, such angstrom the information science address of vitamin a web server .
- time to live (TTL)
- The sum of fourth dimension, in second gear, that you wish a DNS resolver to cache ( storehouse ) the rate for ampere record ahead render another request to path fifty-three to have the current value for that commemorate. If the DNS resolver receive another request for the like domain earlier the TTL run out, the resolver return the hoard prize .
deoxyadenosine monophosphate long TTL reduce your route fifty-three commit, which be base in region on the number of DNS question that route fifty-three react to. ampere short TTL reduce the sum of time that DNS resolvers route traffic to old resource after you transfer the measure indium deoxyadenosine monophosphate read, for exemplar, aside change the information science address for the web server for www.example.com .
