DNS Records

  • A Record – Stores the IPv4 address for a domain.
  • AAAA Record – Stores the IPv6 address for a domain.
  • CNAME Record – Stores an alias name. If a CNAME is present, an IP address is not directly returned.
  • MX Record – Redirects email for a domain to the appropriate mail server.
  • TXT Record – Stores textual information used by administrators or services.
  • NS Record – Stores the authoritative name server for a domain.
  • SOA Record – Stores administrative information about the zone.
  • SRV Record – Identifies the port and host for a specific service.
  • PTR Record – Used for reverse lookups. It maps an IP address back to a hostname.

DNSSEC-specific records:

  • RRSIG Record – Stores digital signatures for a set of DNS records.
  • DNSKEY Record – Stores the public key used in DNSSEC.
  • DS Record – Stores the hash of the DNSKEY record for delegation.
  • NSEC and NSEC3 Records – Explicitly show that a record does not exist.
  • CDNSKEY and CDS Records – Used to update DS records in a child zone from the parent zone.