A record: Address record maps a hostname to a 32-bit IPv4 address.
AAAA record: IPv6 address record maps a hostname to a 128-bit IPv6 address.
CNAME record: Canonical name record is an alias of one name to another.
MX record: Mail exchange record maps a domain name to a list of mail exchange servers for that domain.
PTR record: Pointer record maps an IPv4 address to the canonical name for that host. Setting up a PTR record for a hostname in the in-addr.arpa domain that corresponds to an IP address implements reverse DNS lookup for that address.
NS record: Name server record maps a domain name to a list of DNS servers authoritative for that domain.
SOA record Start of authority record specifies the DNS server providing authoritative information about an Internet domain.
SRV record: It is a generalized service location record.
TXT record: This record is used to implement the Sender Policy Framework.