RootAdmin.co.uk

The Domain Name System (DNS) is a hierarchical naming system for computers, it is used to translate names to ip addresses and like wise ip addresses to names. there are different types of DNS records to allow DNS to work, some of these are below

A record. Used for storing an IP address (actually only an IPv4 32-bit address) associated with a domain name. Refer to RFC 1035.

CNAME. Canonical name for a DNS alias

MX. Mail Exchanger record. Every MX record specifies a domain name (which must have an A record associated with it) and a priority; a list of mail exchangers is then ordered by priority when delivering mail.

NS. Authoritative name server. Specifies a host name (which must have an A record associated with it), where DNS information can be found about the domain name to which the NS record is attached.

PTR. Domain name pointer, Provides a general direction facility for DNS records.