The purpose of DNS is to resolve user-friendly domain names (such as www.google.com) to numerical IP addresses. These records contain the IP address that belongs to the domain. ‘A’ records are IPv4…

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DNS records serve different purposes in domain name resolution and security. A and AAAA records map domains to IPv4 and IPv6 addresses respectively. CNAME records create domain aliases, while MX records direct email routing. TXT records store security information like SPF, DKIM, and DMARC for email authentication. NS records identify authoritative name servers, SOA records contain zone management data, SRV records specify service locations and ports, and PTR records enable reverse DNS lookups for security validation.

DNS Records