Network engineers and site reliability teams
DNS: How to Create DNS Zones and A/CNAME/MX Records
Create authoritative DNS zones in the managed DNS service and publish records for web, API, and mail workloads.
9 min read · Updated 2026-04-01
Prerequisites
- • Domain delegated to platform authoritative name servers
- • Access to DNS zone management in the project
- • Destination IPs or hostnames for intended records
Implementation workflow
This runbook focuses on a reliable sequence for provisioning and validating the service through the cloud console.
- Open Networking > DNS and create a public or private zone.
- Add required records such as A, AAAA, CNAME, MX, and TXT.
- Set TTL values based on operational change frequency.
- Validate zone syntax and publish changes.
- Test record resolution from multiple networks and recursive resolvers.
Validation and operator checks
After deployment, verify connectivity, security boundaries, and backup posture before promoting workloads to production.
Operator tips
- • Use lower TTL values before migrations, then raise after stabilization.
- • Keep mail-related TXT records aligned with security policy updates.
- • Track all zone changes with ticket references for auditability.