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What is DNSSEC?

What it does:

  • Signs DNS records with cryptographic keys
  • Resolvers can verify signatures
  • Detects tampering or forged responses

How it works:

  • Domain owner signs records with private key
  • Public key published in DNS
  • Resolvers verify signature chain from root

Protection provided:

  • Prevents DNS cache poisoning
  • Prevents man-in-the-middle DNS attacks
  • Ensures authenticity of DNS data

Limitations:

  • Does not encrypt DNS queries
  • Does not hide what you are looking up
  • Adds complexity to DNS management

Official seal on registry documents. Verifies the documents have not been altered.

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