Remember DNSSEC
Full name: Domain Name System Security Extensions
Memory aid: DNS gets Security signatures as Extensions.
DNSSEC validates data authenticity and integrity; it does not encrypt DNS queries.
Study area: Protocols & logical ports · Batch 6
Relevant study for: CompTIA Network+ N10-009 · Cisco CCNA 200-301 · CompTIA A+ Core 1 220-1201 · CompTIA Security+ SY0-701 · ISC2 CISSP 2024 outline
Practice with exam flashcards →Networking & Connectivity / Knowledge library
DNSSEC — Domain Name System Security Extensions
Authenticates DNS data using a chain of digital signatures.
Why learn DNSSEC — Domain Name System Security Extensions?
Authenticates DNS data using a chain of digital signatures.
Where it came from
DNSSEC validates data authenticity and integrity; it does not encrypt DNS queries.
- Memory aid (a learning cue, not the expansion): DNS gets Security signatures as Extensions.
Build your understanding
Work through these exercises in order. Try the task before opening a reference.
- Without looking, expand DNSSEC: Domain Name System Security Extensions.
- Recall this memory aid: DNS gets Security signatures as Extensions.
- Explain the practical use: Authenticates DNS data using a chain of digital signatures.
- Explain this distinction: DNSSEC validates data authenticity and integrity; it does not encrypt DNS queries.
- Identify DNSSEC in a device specification, architecture diagram, or system inventory.
Documentation and sources
- IETF RFC 4033 (www.rfc-editor.org)