Domain Name System (DNS)

  1. DNS Resource Records
    1. Resource Record Structure
      1. Owner Name Field
        1. Time to Live Field
          1. Class Field
            1. Type Field
              1. Resource Data Field
              2. Address Records
                1. A Records
                  1. IPv4 Address Mapping
                    1. Multiple A Records
                    2. AAAA Records
                      1. IPv6 Address Mapping
                        1. Dual-Stack Configuration
                      2. Name Records
                        1. CNAME Records
                          1. Canonical Name Aliases
                            1. CNAME Restrictions
                              1. Chain Resolution
                              2. NS Records
                                1. Name Server Delegation
                                  1. Authority Specification
                                  2. PTR Records
                                    1. Reverse Mapping
                                      1. Hostname Resolution
                                    2. Mail Records
                                      1. MX Records
                                        1. Mail Server Specification
                                          1. Priority Values
                                            1. Mail Routing Logic
                                          2. Service Records
                                            1. SRV Records
                                              1. Service Discovery
                                                1. Priority and Weight
                                                  1. Port Specification
                                                  2. TXT Records
                                                    1. Arbitrary Text Storage
                                                      1. Protocol Extensions
                                                        1. Verification Data
                                                      2. Authority Records
                                                        1. SOA Records
                                                          1. Zone Authority Declaration
                                                            1. Administrative Information
                                                              1. Timing Parameters
                                                            2. Security Records
                                                              1. CAA Records
                                                                1. Certificate Authority Authorization
                                                                  1. Issuance Control
                                                                2. Specialized Records
                                                                  1. NAPTR Records
                                                                    1. URI Resolution
                                                                      1. Service Selection
                                                                      2. LOC Records
                                                                        1. Geographic Location
                                                                        2. HINFO Records
                                                                          1. Host Information

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                                                                      4. DNS Resolution Process

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                                                                      6. Zone Management