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The Domain Name System translates human-readable domain names (like example.com) into IP addresses that computers use to route traffic. DNS operates as a distributed hierarchical database with root servers, TLD servers, and authoritative nameservers resolving queries in milliseconds.
DNS is one of the most abused protocols in cybersecurity. Attackers use DNS tunneling to exfiltrate data, DNS poisoning to redirect users, and domain generation algorithms to maintain botnet command channels. Security analysts monitor DNS logs as a primary detection source for malicious activity.
Looking for the acronym? Read about DNS in the cybersecurity acronym decoder
Citation index · auto-derived from course content
11 public surfaces on the platform reference this term in a meaningful way. Sorted by relevance.
Related glossary entries · 11
Other glossary terms whose definition cites this one.
"…on themselves between client and server using ARP spoofing, DNS hijacking, or rogue Wi-Fi access points to capture credenti…"
"…cker-controlled location. Attackers use encrypted channels, DNS tunneling, steganography, or cloud storage uploads to move…"
"A tripwire mechanism embedded in files, URLs, DNS records, or credentials that alerts defenders when accessed…"
"…aigns. Security engineers block known C2 domains and deploy DNS sinkholes to disrupt botnet communication."
"…data. Attackers disguise C2 traffic as normal web browsing, DNS queries, or cloud service API calls to evade detection."
"…y violations. NTA tools analyze flow data (NetFlow, sFlow), DNS queries, and packet metadata to identify suspicious pattern…"
"…perations, security, and troubleshooting. It covers TCP/IP, DNS, DHCP, routing, switching, wireless, and cloud connectivity…"
"…matically assigns IP addresses, subnet masks, gateways, and DNS servers to devices joining a network. A DHCP server leases…"
"…ublic-facing services like web servers, email gateways, and DNS servers, isolating them so a compromise of a public service…"
"…omains, exposed cloud storage, leaked credentials, dangling DNS records, and shadow IT services that the organization may n…"
"…cadence, email security configuration, TLS implementation, DNS security, and leaked credentials. They are widely used in v…"
The Domain Name System translates human-readable domain names (like example.com) into IP addresses that computers use to route traffic. DNS operates as a distributed hierarchical database with root servers, TLD servers, and authoritative nameservers resolving queries in milliseconds.
DNS is one of the most abused protocols in cybersecurity. Attackers use DNS tunneling to exfiltrate data, DNS poisoning to redirect users, and domain generation algorithms to maintain botnet command channels. Security analysts monitor DNS logs as a primary detection source for malicious activity.
Cybersecurity professionals who work with DNS include SOC Analyst, Threat Intelligence Analyst, Security Engineer, Incident Responder. These roles apply DNS knowledge within the Networking & Infrastructure domain.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.
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