An address record (A
record) is a DNS record which is used to point a domain name or subdomains to a
static IP address. An A record specifies which IP is designated to a certain
domain. This entry does not always have to be made; for example, a domain can
be used exclusively for mail services, so an address record for this domain is
not required.
Conversely, several records can be added for
every domain. In such cases, a new record is returned for every query. This is
particularly necessary for large scalable systems.
All servers that are
connected to the Internet are designated a particular IP address. The address
record associates a name to the server's IP address. This lets people to make
use of easy-to-remember domain names instead of hard-to-remember IP addresses while
connecting to a website. For example, users could type the IP address
216.168.224.69 in the address bar to access Google's home page, or they could
effortlessly type www.google.com to access the page.
Users can set up A records using specific DNS
management tools, which can differ among users.
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