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Networking Intermediate

What is DNS Record Types?

Different types of DNS entries that map domain names to various information like IP addresses, mail servers, and verification strings.

DNS record types serve different purposes. A records map domains to IPv4 addresses. AAAA records map to IPv6. CNAME creates domain aliases. MX directs email to mail servers. TXT stores text data for verification and SPF/DKIM email authentication.

NS records specify authoritative nameservers. SOA defines zone authority and timing parameters. SRV records specify service locations. CAA records control which CAs can issue certificates. PTR records enable reverse DNS lookups.

Related Terms

QoS (Quality of Service)
A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.
Firewall
A network security system that monitors and controls incoming and outgoing traffic based on predetermined rules.
NAT (Network Address Translation)
A method of mapping private IP addresses to public IP addresses, allowing multiple devices to share a single public IP.
Network ACL
A set of rules that control inbound and outbound traffic at the subnet level, acting as a stateless firewall in cloud and enterprise networks.
Network Monitoring
The practice of continuously observing network infrastructure to detect failures, performance degradation, and security threats.
VPN (Virtual Private Network)
A technology that creates an encrypted tunnel between your device and a remote server, securing internet traffic.
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