DNS (Domain Name System) is a system that maps human-readable domain names to numerical IP addresses.
Record Types
- Address (A) Record
- Points name to IPv4 address
- Quad Address (AAAA) Record
- Points name to IPv6 address
- CNAME Record (Canonical Name)
- Name Server (NS) Record
- Mail Exchanger (MX) Record
- Points to mail server (e.g. mx1.mail.example.com)
- Text (TXT) Record
- Contains textual information about the domain
- PTR Record (Pointer To a Canonical Name)
- Used to validate IP is legit
- SRV Record (Generalized Service Location)