When we talk about applications on the internet, DNS (Domain Name System) is like the phonebook. Instead of remembering an IP address like 13.224.249.31, you just type latchudevops.com and DNS figures it out for you.
Google Cloud offers a fully managed service called Cloud DNS that is fast, reliable, and global. Let’s break it down in simple terms 👇
🗂️ Cloud DNS Terminology
🔹 DNS Zones
Think of a Zone as a container for DNS records.
- Public Zone → Visible to the internet, used for external apps/websites.
- Private Zone → Visible only inside your Google Cloud VPCs, great for internal apps and VM communication.
🔹 Record Sets
These are the actual DNS entries inside a Zone.
Example:
- A Record → Maps app.example.com → 35.201.123.45
⚡ Key Features of Cloud DNS
✅ Integration with Cloud IAM → Manage access securely.
✅ Integration with Cloud Logging → Get logs for every DNS query.
✅ Fast Anycast Nameservers → DNS queries resolve from the nearest location = low latency.
✅ DNS Registration & Management → Works hand-in-hand with Cloud Domains.
✅ Container-native DNS → Integrated with GKE for service-to-service DNS resolution.
✅ DNS Peering → Share DNS info between networks.
✅ DNS Forwarding → Forward queries to on-prem DNS servers (hybrid-cloud use case).
🧩 Why Use Google Cloud DNS?
- Global scale + high availability 🌍
- Secure with DNSSEC 🔐
- Works seamlessly with other GCP services 🧑💻
- Perfect for both public apps and internal enterprise apps
🏁 Quick Recap
- Zone = Container of DNS records
- Public Zone = Internet-facing
- Private Zone = Internal-only
- Records = Actual DNS mappings
- Features = Security, Speed, Flexibility, Hybrid-cloud support
💡 Next time you spin up an app in GCP, think about where your DNS will live and whether you need it public or private.
🌟 Thanks for reading! If this post added value, a like ❤️, follow, or share would encourage me to keep creating more content.
— Latchu | Senior DevOps & Cloud Engineer
☁️ AWS | GCP | ☸️ Kubernetes | 🔐 Security | ⚡ Automation
📌 Sharing hands-on guides, best practices & real-world cloud solutions
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