Identifying and Verifying a Domain in Oracle Cloud Infrastructure (OCI): Requirements and Implementation Steps

 

Identifying and Verifying a Domain in Oracle Cloud Infrastructure (OCI): Requirements and Implementation Steps

In Oracle Cloud Infrastructure (OCI), identifying and verifying a domain is essential for using various services such as DNS management, custom domain setup for applications, email services, and security features like SSL certificates. Verifying domain ownership ensures that you have legitimate control over the domain and helps with secure communication between your domain and OCI services. Below is a comprehensive guide covering the requirements and detailed implementation steps.

Why You Need to Identify and Verify a Domain in OCI

  1. Custom Application Setup: You may need to map a custom domain (e.g., yourdomain.com) to an OCI service like an Oracle Load Balancer, Web Application Firewall (WAF), or Object Storage static website hosting.

  2. Email Services: If you plan to use Oracle Cloud Email Delivery, domain ownership verification is required to send emails using a custom domain.

  3. Security and Compliance: Verification helps prevent domain spoofing and ensures that your custom SSL/TLS certificates are correctly issued.

  4. DNS Management: You can manage your domain's DNS records directly within OCI by setting up and verifying the domain in OCI’s DNS zone service.

Key Requirements Before Identifying a Domain in OCI

  • Domain Registration: Ensure your domain is registered with a domain name registrar (e.g., GoDaddy, Namecheap, Google Domains). OCI doesn’t provide domain registration, but it manages DNS for registered domains.

  • Access to DNS Settings: You must have control over your domain’s DNS settings to add the verification records (e.g., TXT records).

  • OCI DNS Permissions: Ensure you have the necessary IAM permissions in OCI to manage DNS zones and records.

Implementation Steps for Identifying and Verifying a Domain in OCI

Step 1: Log in to the OCI Console

  • Sign in to the OCI Console using your credentials (ensure you have the necessary permissions to manage DNS and domains).
  • Navigate to the home dashboard.

Step 2: Navigate to DNS Zone Management

  • From the dashboard, go to Networking → DNS Management → Zones.
  • Here, you will manage DNS records for the domain you want to identify and verify.

Step 3: Create a New DNS Zone for Your Domain

If your domain isn’t already managed in OCI, you’ll need to create a DNS zone.

  • Click on Create Zone.
  • Enter your domain name (e.g., yourdomain.com).
  • Choose Primary Zone if you want OCI to be the authoritative DNS server. If you already have DNS managed externally and want OCI as a secondary DNS, choose Secondary Zone.
  • Select the Compartment where you want to manage the zone (compartments in OCI are used for organizing resources).
  • Click Create to initialize the DNS zone.

Step 4: Point the Domain to OCI DNS Servers (External Step)

  • If you chose Primary Zone, you must configure your domain’s DNS settings with your registrar (e.g., GoDaddy, Namecheap) to point to OCI’s name servers.
  • OCI will provide the NS (Name Server) records. You’ll need to update your domain registrar’s control panel to reflect these name servers, allowing OCI to manage your domain.

Step 5: Add Verification Records (TXT Record)

For certain services, like verifying domain ownership for email delivery or custom SSL certificates, you'll need to add a TXT record to the DNS zone.

  • In the DNS zone management screen, click on Add Record.
  • Select TXT as the record type.
  • In the Name field, leave it blank or use the value provided by the service requesting verification (e.g., for email delivery, it might be something like _amazonses.yourdomain.com).
  • In the TXT Value field, enter the verification token provided by the service (for email verification, SSL, or other domain ownership checks).
  • Set the TTL (Time to Live) as recommended or leave the default value.
  • Click Add to apply the record.

Step 6: Wait for DNS Propagation

  • DNS changes can take time to propagate across the internet, typically between 30 minutes to 48 hours. You can use tools like nslookup or dig to check if the DNS records are visible and correctly configured.

Step 7: Verify Domain Ownership

  • After adding the TXT record, return to the service (e.g., Email Delivery or SSL provider) and complete the verification process.
  • The service will check the DNS record to verify your ownership of the domain.
  • Once verified, you will receive confirmation that your domain is successfully verified.

Step 8: Configure Additional DNS Records as Needed

  • Once your domain is verified and DNS is set up, you can manage additional DNS records as required for your use case.
  • Examples include A records for pointing the domain to an IP address (e.g., a Load Balancer in OCI), CNAME records for aliasing, MX records for email routing, or SRV records for specifying services.

Step 9: Use the Domain with OCI Services

  • Now that your domain is verified and configured in OCI, you can use it with various OCI services:
    • Oracle Email Delivery: Start sending emails from your custom domain.
    • Load Balancer or Web Applications: Route traffic from the domain to OCI services.
    • SSL Certificates: Install SSL certificates for secure communication using the domain.
    • OCI Object Storage: Host a static website using a custom domain.

Best Practices for Managing Domains in OCI

  1. Regularly Review DNS Records: Ensure your DNS records are always up-to-date, especially if you change infrastructure or integrate new services.

  2. Monitor DNS Changes: Use DNS monitoring tools to track changes and propagation, ensuring high availability and performance.

  3. Security and Compliance: Enable DNSSEC (Domain Name System Security Extensions) in OCI for enhanced domain security, preventing DNS spoofing or hijacking.

  4. Backup DNS Configurations: Regularly back up your DNS zone configurations in case of accidental changes or deletions.

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