🤖 Ai回答: Google Cloud DNS is a fully managed Domain Name System (DNS) service provided by Google Cloud Platform (GCP)、It allows you to create, edit, and manage DNS zones to route internet traffic to your applications, websites, or services hosted on GCP or elsewhere、Here's an overview of its key features and use cases:
Key Features
1、Global Anywhere Edge Network:
Leverages Google's distributed edge network for low-latency DNS resolution worldwide.
Ensures high availability and reliability.
2、Easy Integration:
Seamlessly works with other GCP services (Compute Engine, Kubernetes Engine, Load Balancing, etc.).
Supports importing/exporting DNS zones in standard formats (AXFR, BIND).
3、Traffic Management:
Load Balancing: Distribute traffic across multiple IP addresses using round-robin or geolocation-based routing.
Failover: Configure health checks to automatically reroute traffic if a server becomes unavailable.
Custom Policies: Use `SRV` records for service discovery or weighted records for traffic shifting.
4、Security:
DNSSEC: Sign your zones to prevent DNS spoofing.
Private Zones: Restrict DNS access to specific VPC networks for internal services.
5、Scalability & Performance:
Handles millions of queries per second.
Automatic scaling to meet demand.
6、Monitoring & Logging:
Track DNS query statistics via Cloud Monitoring.
Log detailed queries to Cloud Logging for analysis.
Common Use Cases
Hosting a website or application with custom domains.
Managing subdomains (e.g., `www.65.hk`, `api.65.hk`).
Redirecting traffic for disaster recovery or maintenance.
Securing domains with DNSSEC.
Integrating with GCP load balancers or CDN services.
Getting Started
1、Create a DNS Zone:
In the [Google Cloud Console](https://console.cloud.google.com/), navigate to Network Services Cloud DNS.
Click Create Zone, enter your domain (e.g., `65.hk`), and configure settings (public/private, DNSSEC).
2、Add Records:
Common record types include:
A/CNAME: Map hostnames to IP addresses.
MX: Route email traffic.
TXT: Store verification data (e.g., SPF, DKIM).
Use the console, `gcloud` CLI, or API to manage records.
3、Verify Ownership:
If transferring a domain, add TXT records for verification (e.g., for Google Search Console or third-party services).
Best Practices
Use Versioning: Keep backups of your DNS configurations.
Monitor Health Checks: Ensure failover routes work as expected.
Leverage Templates: Use Terraform or YAML templates for repeatable setups.
Update SOA TTL: Adjust Time-to-Live (TTL) values for faster propagation during changes.
Troubleshooting Tips
Propagation Delays: DNS changes can take time to propagate globally (typically 1–48 hours)、Use tools like `dig` or [DNS Checker](https://dnschecker.org/) to verify.
Check Firewall Rules: Ensure VPC firewalls allow DNS traffic if using private zones.
Review Logs: Use Cloud Logging to diagnose failed queries or configuration errors.
Documentation & Resources
[Official Google Cloud DNS Docs](https://cloud.google.com/dns)
[Quickstart Guide](https://cloud.google.com/dns/docs/quickstart)
[DNSSEC Setup Tutorial](https://cloud.google.com/dns/docs/dnssec)
Let me know if you'd like help with a specific task (e.g., migrating DNS, configuring load balancing)! 🚀