A record
Maps a domain name to an IPv4 address
Example: If example.com has an A record of 192.0.2.1, when someone types example.com in their browser, the DNS translates it to the IP address 192.0.2.1 and connects them to that server.
AAAA record
Maps a domain name to an IPv6 address.
Example: If example.com has an AAAA record of 2001:0db8:85a3:0000:0000:8a2e:0370:7334, this record is used to connect users to an IPv6-enabled server.
CNAME Record
Canonical Name Record
Maps a domain name to another domain name (aliasing)
Example: If www.example.com has a CNAME record pointing to example.com, when someone accesses www.example.com, the DNS will redirect them to example.com.
MX Record
Mail Exchange Record
Specifies the mail servers responsible for receiving email for a domain
Example: If example.com has an MX record pointing to mail.example.com, all emails sent to @example.com addresses will be routed to mail.example.com
NS Record
Name Server Record
Indicates the authoritative DNS servers for the domain
Example: If example.com has NS records pointing to ns1.example.com and ns2.example.com, these servers are responsible for handling DNS queries for example.com.
PTR Record
Pointer Record
Maps an IP address to a domain name (reverse DNS lookup)
Example: If 192.0.2.1 has a PTR record pointing to example.com, a reverse DNS lookup for the IP address 192.0.2.1 would return example.com.
SRV Record
Service Record
Specifies the location (hostname and port) of servers for specific services.
Example: An SRV record might be used to specify the location of a service like a SIP server (_sip._tcp.example.com).
SOA Record
Start of Authority Record
Provides important information about the domain, such as the primary name server, the email of the domain administrator, and various timing settings
Example: The SOA record includes data like the refresh rate for the DNS zone and the contact email for the administrator
