DNS acts as the internet's phonebook, resolving names like example.com to IP addresses like 93.184.216.34.
DNS record types
- A/AAAA: IPv4/IPv6 address mappings.
- CNAME: Canonical name (alias) for another domain.
- MX: Mail server routing.
- TXT: Arbitrary text data (SPF, DKIM, verification).
- NS: Nameserver delegation.
Security concerns
- DNS hijacking: Attackers redirect queries to malicious IPs.
- DNS cache poisoning: Corrupt resolver caches with fake records.
- DNSSEC: Cryptographic authentication of DNS responses.
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View all termsBGP (Border Gateway Protocol)
The routing protocol that exchanges network reachability information between autonomous systems, forming the backbone of Internet routing.
Read more →DNS
The Domain Name System translates human-readable domain names into IP addresses that computers use to connect to websites and services.
Read more →DNSSEC (DNS Security Extensions)
A suite of specifications that add cryptographic authentication to DNS responses, preventing DNS spoofing and cache poisoning attacks.
Read more →IP Address Geolocation
The process of determining the geographic location of an internet-connected device using its IP address.
Read more →MAC Address
A unique hardware identifier assigned to network interfaces for local network communication.
Read more →MX Record
A DNS record type that specifies which mail servers are responsible for receiving email for a domain.
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