What DNS record types does OCI DNS support?

OCI DNS supports all standard record types including A, AAAA, CNAME, MX, NS, PTR, SOA, SRV, TXT, and CAA records. It also supports ALIAS records (similar to AWS Route 53 alias records) that resolve to OCI resources like load balancers at the zone apex where CNAME records are not allowed. The maximum number of records per zone is 25,000, and each record can have multiple values for round-robin distribution.

How does OCI DNS traffic management differ from basic DNS?

OCI DNS Traffic Management (steering policies) goes beyond basic record resolution by routing traffic based on geographic location, weighted ratios, IP prefix lists, or health check results. You define rules in a steering policy and attach it to a domain. For example, you can route European users to your Frankfurt region and US users to your Ashburn region, with automatic failover to a healthy region if health checks detect an outage.

OCI DNS Zone Builder

NetworkingOCI

Build OCI DNS zone record configurations for public and private zones.

OCI DNS Zone Configuration

Domain

Record 1

Subdomain

Type

Data

TTL

Output Format

Domain name is required
Record 1: Record data is required

Generated DNS Zone JSON

Output will appear here...

About This Tool

OCI DNS is a globally distributed, highly available DNS service that supports public and private zones with advanced traffic management capabilities. Building DNS zones involves configuring zone records (A, AAAA, CNAME, MX, TXT, SRV, etc.), setting TTL values, and optionally defining steering policies for geographic or weighted traffic distribution. This tool helps you assemble zone configurations with correct record syntax, validation of record values, and proper TTL settings. It generates configurations for the OCI CLI, Terraform, and bulk zone file imports.

When to Use This Tool

•Building a public DNS zone with A records for web servers, MX records for email, and TXT records for SPF/DKIM verification
•Creating private DNS zones for internal service discovery within a VCN so instances can resolve each other by hostname
•Configuring zone records with appropriate TTL values — short TTLs for frequently changing services and long TTLs for stable infrastructure
•Generating zone file exports for migration from on-premises DNS servers or other cloud DNS services to OCI DNS

Frequently Asked Questions

What DNS record types does OCI DNS support?: OCI DNS supports all standard record types including A, AAAA, CNAME, MX, NS, PTR, SOA, SRV, TXT, and CAA records. It also supports ALIAS records (similar to AWS Route 53 alias records) that resolve to OCI resources like load balancers at the zone apex where CNAME records are not allowed. The maximum number of records per zone is 25,000, and each record can have multiple values for round-robin distribution.
How does OCI DNS traffic management differ from basic DNS?: OCI DNS Traffic Management (steering policies) goes beyond basic record resolution by routing traffic based on geographic location, weighted ratios, IP prefix lists, or health check results. You define rules in a steering policy and attach it to a domain. For example, you can route European users to your Frankfurt region and US users to your Ashburn region, with automatic failover to a healthy region if health checks detect an outage.

Related Learning Guides

OCI VCN Networking Deep Dive25 min read

Disclaimer: This tool runs entirely in your browser. No data is sent to our servers. Always verify outputs before using them in production. AWS, Azure, and GCP are trademarks of their respective owners.