# CNAME vs A record

Published articles for CNAME vs A record.

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## How DNS Works for DevOps Engineers

DevFeed: [How DNS Works for DevOps Engineers](<https://devfeed.tech/articles/how-dns-works-for-devops-engineers-17483.md>)

Original publisher: [Read original article](<https://kodekloud.com/blog/how-dns-works-for-devops-engineers/>)

Author: Pramodh Kumar M

Published: 2026-07-31T17:00:06Z

Content type: tutorial

Language: en

Sources: [Kubernetes - KodeKloud Blog | DevOps, Cloud, Kubernetes, AI Tutorials & More](<https://devfeed.tech/sources/kubernetes-kodekloud-blog-devops-cloud-kubernetes-ai-tutorials-more.md>)

Topics: [DevOps](<https://devfeed.tech/topics/devops.md>), [Internet](<https://devfeed.tech/topics/internet.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Security](<https://devfeed.tech/topics/security.md>)

Tags: [1-1-1-1](<https://devfeed.tech/tags/1-1-1-1.md>), [authoritative-name-server](<https://devfeed.tech/tags/authoritative-name-server.md>), [cloudflare](<https://devfeed.tech/tags/cloudflare.md>), [cname-vs-a-record](<https://devfeed.tech/tags/cname-vs-a-record.md>), [coredns-kubernetes](<https://devfeed.tech/tags/coredns-kubernetes.md>), [devops](<https://devfeed.tech/tags/devops.md>), [dig-command-examples](<https://devfeed.tech/tags/dig-command-examples.md>), [dns](<https://devfeed.tech/tags/dns.md>), [dns-for-devops-engineers](<https://devfeed.tech/tags/dns-for-devops-engineers.md>), [dns-record-types](<https://devfeed.tech/tags/dns-record-types.md>), [dns-resolution-process](<https://devfeed.tech/tags/dns-resolution-process.md>), [dns-troubleshooting](<https://devfeed.tech/tags/dns-troubleshooting.md>), [guide](<https://devfeed.tech/tags/guide.md>), [health-checks](<https://devfeed.tech/tags/health-checks.md>), [how-dns-works](<https://devfeed.tech/tags/how-dns-works.md>), [infrastructure](<https://devfeed.tech/tags/infrastructure.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [linux](<https://devfeed.tech/tags/linux.md>), [lookup](<https://devfeed.tech/tags/lookup.md>), [networking](<https://devfeed.tech/tags/networking.md>), [outage](<https://devfeed.tech/tags/outage.md>), [production](<https://devfeed.tech/tags/production.md>), [recursive-resolver](<https://devfeed.tech/tags/recursive-resolver.md>), [security](<https://devfeed.tech/tags/security.md>), [troubleshooting](<https://devfeed.tech/tags/troubleshooting.md>), [ttl-in-dns](<https://devfeed.tech/tags/ttl-in-dns.md>), [web](<https://devfeed.tech/tags/web.md>)

### AI overview

A practical guide to DNS for DevOps engineers, tracing a lookup from a laptop through recursive, root, TLD, and authoritative servers. It explains TTL, caching, Kubernetes DNS and ndots, troubleshooting with command-line tools, and the security risk of dangling records.

### Source excerpt

Almost every engineer uses DNS a hundred times a day and has never been taught how it works. This guide follows a single lookup from your laptop to the answer, then shows you exactly where it breaks in production.