“A” record(address record) - returns a 32-bit IPv4 address, most commonly used to map hostnames to an IP address of the host.
“MX” record(mail exchange record) - maps a domain name to a list of mail exchange servers for that domain.
“CNAME” record(canonical name record) - is an alias of one name to another, the DNS lookup will continue by retrying the lookup with the new name. This is useful when running multiple services (like an FTP and a webserver) from a single IP address. Each service can then have its own …