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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

Bandwidth
The maximum rate of data transfer across a network connection, measured in bits per second.
ICMP (Internet Control Message Protocol)
A network protocol used for diagnostic and error reporting, including ping and traceroute functionality.
ARP (Address Resolution Protocol)
A protocol that maps IP addresses to physical MAC addresses on a local network segment.
Subnet
A logical division of an IP network into smaller segments to improve performance, security, and management.
TCP/IP
The fundamental communication protocol suite of the internet that defines how data is packaged, addressed, transmitted, and received.
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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