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Oracle Cloud Infrastructure DNS is a highly scalable, global anycast domain name system (DNS) network that assures high site availability and low latency, resulting in a superior end user experience when connecting to Oracle Cloud Infrastructure, third-party, and private assets. By configuring Oracle DNS, enterprise and business customers can connect their DNS queries to assets such as Oracle Cloud Infrastructure Compute and Storage, as well as to third-party and private assets. Customers can also manage DNS records, which are domain names mapped to IP addresses; domain names can be cloud or non cloud resources.
Oracle Cloud Infrastructure DNS is an established, industry-leading solution. Some of the key benefits include:
Oracle Cloud Infrastructure DNS service may be used when:
A DNS domain is simply the name given to translate a corresponding IP address, such as example.com. A DNS zone is where DNS records for a specific DNS domain are kept.
Currently, Oracle Cloud Infrastructure DNS supports the following DNS records:
In addition, Oracle Cloud Infrastructure DNS supports an ALIAS record type which is specific to Oracle Cloud Infrastructure DNS. It can be used to map to various Oracle Cloud Infrastructure services (Compute, Network, Database or Storage), third-party or private assets. The ALIAS record acts is similar to a CNAME record, with the difference being they can be at the 'apex' record of a Zone and is not visible to external resolvers, ALIAS record types support only A and AAAA queries. Any DNS query is resolved to the mapped asset. If example.com is queried, the ALIAS record would resolve to the mapped asset (for example, the Oracle Cloud Infrastructure Compute asset). ALIAS records also help by not having to map a record to a specific IP address as IP addresses associated with certain assets could dynamically change due to various conditions.
Oracle Cloud Infrastructure DNS service supports up to 1000 zones per tenant. More zones can be added by contacting Oracle Support.
The Oracle Cloud Infrastructure DNS service by default supports up to 25,000 resource records per zone. Contact Oracle Support if more records are needed.
Oracle Cloud Infrastructure DNS offers a complete set of functions for zone management within the user interface. The following functions are available:
The Oracle Cloud Infrastructure DNS Network supports 18 anycast POPs distributed around North America, South America, Europe, and Asia Pacific.
An anycast network utilizes the same IP address for all of the DNS servers in the network. This means that the DNS server in South America has the same IP address as the DNS server in Asia. When a DNS query is sent, even though all the DNS servers have the same IP address, the request is sent to a specific DNS server based on routing protocol, network health, and proximity to the servers location, etc. The anycast network provides lower latency, a basic level of load-balancing, and resiliency to be able to handle outages or heavy traffic with minimal impact to the customer.
Secondary DNS operates in an “always on” manner to supplement your existing primary DNS infrastructure to increase the availability of name resolution. When an end user’s recursive server initiates a DNS request, both the existing DNS service and the secondary DNS will respond as soon as they receive the request. Whichever response reaches the recursive server first will be passed back to the end user, completing their request. This process effectively creates a race to respond to each incoming DNS request, ensuring performance can only improve. All domain information will continue to be managed within the primary DNS service in the same manner in which this information is configured today. This information will then be synchronized with the secondary service using standard protocols (Notify, IXFR, AXFR) to ensure both solutions are returning the same information to end users.
Oracle Cloud Infrastructure DNS zones may be configured as Secondary zones today. External name servers are not currently supported for secondary DNS.
Yes. We deliver a minimum of 99.95 percent availability, consistent with other Oracle Cloud Infrastructure services.
Oracle Cloud Infrastructure DNS will soon support traffic management capabilities to steer DNS traffic with capabilities such as active failover, ratio load balancing and geolocation, ASN, and IP Prefix steering.
Oracle Cloud Infrastructure DNS is available to Universal Cloud Credit subscribers. Universal Cloud Credit subscribers can access Oracle Cloud Infrastructure DNS via the Oracle Cloud Infrastructure Console under the networking tab. From the DNS Zones page, customers can begin to add the needed zones and records.
Oracle Cloud Infrastructure DNS offers an easy to use graphical user interface, CLI, comprehensive REST APIs, and SDKs.
Oracle Cloud Infrastructure DNS supports SDKs for Java, Python and Ruby, as well as an API. The SDKs and API support full zone and record management capabilities.
Yes, Zone export is supported by many DNS vendors and systems. A downloaded/exported file can be imported using the Oracle Cloud Infrastructure user interface or the REST API.
Domains can be delegated to Oracle Cloud Infrastructure DNS from the Domain Registrar’s self-service portal.
Yes, in most cases. Restrictions are related to which third-party DNS vendor is acting as primary. Some of the larger cloud providers offering DNS service do not support this capability. Please contact Oracle Cloud Infrastructure DNS support for details.
Yes. Other vendor DNS solutions may be used as secondary DNS with the Oracle Cloud Infrastructure DNS as primary for higher service availability if required.
No, currently Domain Name System Security Extension (DNSSEC) is not supported at this time.
Yes. Oracle Cloud Infrastructure DNS supports zones with AAAA records, and name servers listen on both IPv4 and IPv6 addresses.
Yes. At this time counts for total queries and queries per zone are supported.
Yes. Customers may purchase Oracle Cloud Infrastructure private pool and vanity name servers to have their domain names and zones under a private IP pool with dedicated name servers to segregate from those of other customers in order to reduce the risk of external issues affecting their websites.
Yes. Customers may purchase private pool and vanity name servers to rebrand the Oracle Cloud Infrastructure name servers with their own naming in order to gain flexibility and consistency across their online assets.
Customers can contact MOS (My Oracle Support) through the Oracle Cloud Infrastructure Portal.
Yes. Oracle Cloud Infrastructure DNS is available to Universal Cloud Credit subscribers. Customers may choose to only leverage only Oracle Cloud Infrastructure DNS.