Understand the most important DNS records used by websites.
DNS translates a domain name such as example.com into the IP address used by servers and browsers.
A record: Points a domain to an IPv4 address.
AAAA record: Points a domain to an IPv6 address.
MX record: Defines the mail servers used by the domain.
NS record: Defines the authoritative name servers.
Incorrect DNS settings can cause website downtime, email problems or failed connections.
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