Domain Name Service User Guide Date 2021-04-20 Domain Name Service User Guide Contents Contents 1 Overview....................................................................................................................................1 1.1 What Is DNS?............................................................................................................................................................................1 1.2 Public Zone................................................................................................................................................................................ 2 1.3 Private Zone.............................................................................................................................................................................. 5 1.4 Reverse Resolution.................................................................................................................................................................. 8 1.5 Related Services....................................................................................................................................................................... 8 1.6 Product Concepts.....................................................................................................................................................................9 1.6.1 Domain Name Format and Structure........................................................................................................................... 9 1.6.2 Record Set...............................................................................................................................................................................9 1.6.3 Region and AZ.................................................................................................................................................................... 11 1.6.4 Project....................................................................................................................................................................................12 1.6.5 User Permissions................................................................................................................................................................ 13 2 Getting Started...................................................................................................................... 14 2.1 Quick Start.............................................................................................................................................................................. 14 2.2 Routing Internet Traffic to a Website............................................................................................................................ 14 2.3 Configuring a Private Zone................................................................................................................................................19 2.4 Configuring a PTR Record.................................................................................................................................................. 23 3 Public Zone............................................................................................................................. 26 3.1 Overview.................................................................................................................................................................................. 26 3.2 Creating a Public Zone........................................................................................................................................................ 27 3.3 Managing Public Zones...................................................................................................................................................... 29 4 Private Zone............................................................................................................................31 4.1 Overview.................................................................................................................................................................................. 31 4.2 Creating a Private Zone...................................................................................................................................................... 32 4.3 Managing Private Zones.....................................................................................................................................................35 4.4 Associating a VPC with a Private Zone..........................................................................................................................36 4.5 Disassociating a VPC from a Private Zone................................................................................................................... 37 5 Record Set............................................................................................................................... 39 5.1 Overview.................................................................................................................................................................................. 39 5.2 Record Set Types and Configuration Rules.................................................................................................................. 40 5.3 Adding Record Sets.............................................................................................................................................................. 44 5.3.1 Adding an A Record Set.................................................................................................................................................. 44 2021-04-20 ii Domain Name Service User Guide Contents 5.3.2 Adding an AAAA Record Set.......................................................................................................................................... 47 5.3.3 Adding an NS Record Set................................................................................................................................................49 5.3.4 Adding a CNAME Record Set........................................................................................................................................ 52 5.3.5 Adding an MX Record Set...............................................................................................................................................54 5.3.6 Adding a TXT Record Set................................................................................................................................................ 57 5.3.7 Adding an SRV Record Set............................................................................................................................................. 60 5.3.8 Adding a CAA Record Set............................................................................................................................................... 62 5.3.9 Adding a PTR Record........................................................................................................................................................65 5.4 Managing Record Sets........................................................................................................................................................ 67 5.5 Creating a Wildcard DNS Record Set............................................................................................................................. 69 6 PTR Record.............................................................................................................................. 72 6.1 Overview.................................................................................................................................................................................. 72 6.2 Creating a PTR Record........................................................................................................................................................ 73 6.3 Managing PTR Records....................................................................................................................................................... 75 7 Key Operations Recorded by CTS...................................................................................... 77 7.1 DNS Operations Recorded by CTS.................................................................................................................................. 77 7.2 Viewing Traces....................................................................................................................................................................... 79 8 Quota Adjustment.................................................................................................................81 9 FAQs..........................................................................................................................................83 9.1 DNS Overview........................................................................................................................................................................ 83 9.1.1 Will I Be Billed for the DNS Service?.......................................................................................................................... 83 9.1.2 How Many Zones, PTR Records, and Record Sets Can I Create?...................................................................... 83 9.1.3 Does DNS Support Wildcard Entries?.........................................................................................................................83