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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

Overlay Network
A virtual network built on top of an existing physical network, enabling features like container networking and VPNs.
SSL/TLS Certificate
A digital certificate that authenticates a website identity and enables encrypted HTTPS connections.
NAT (Network Address Translation)
A method of mapping private IP addresses to public IP addresses, allowing multiple devices to share a single public IP.
QoS (Quality of Service)
A set of techniques for managing network traffic to prioritize certain types of data and ensure performance for critical applications.
OSI Model
The seven-layer Open Systems Interconnection model that standardizes network communication functions from physical transmission to application protocols.
Network Bridge
A device or software that connects two or more network segments at the data link layer, forwarding traffic based on MAC addresses.
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