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RFC 2181:Clarifications to the DNS Specification

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Clarifications to the DNS Specification

2. Introduction

4. Server Reply Source Address Selection

4.1. UDP Source Address Selection

4.2. Port Number Selection

5. Resource Record Sets

5.1. Sending RRs from an RRSet

5.2. TTLs of RRs in an RRSet

5.3. DNSSEC Special Cases

5.3.1. SIG records and RRSets

5.4. Receiving RRSets

5.4.1. Ranking data

5.5. Sending RRSets (reprise)

6.1. Zone authority

6.2. DNSSEC issues

7.1. Placement of SOA RRs in authoritative answers

7.2. TTLs on SOA RRs

7.3. The SOA.MNAME field

8. Time to Live (TTL)

9. The TC (truncated) header bit

10. Naming issues

10.1. CNAME resource records

10.1.1. CNAME terminology

10.2. PTR records

10.3. MX and NS records

11. Name syntax

12. Security Considerations

14. Acknowledgements

15. Authors' Addresses

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