DNS & Infrastructure
DNS resolution, record types, nameservers, and the protocols that power domain name lookups.
DNS (डोमेन नाम प्रणाली)
Hierarchical naming system that translates domain names into IP addresses.
नेमसर्वर
Server that stores DNS records and responds to DNS queries for a domain zone.
A रिकॉर्ड
DNS record mapping a domain name to an IPv4 address.
AAAA रिकॉर्ड
DNS record mapping a domain name to an IPv6 address.
CNAME रिकॉर्ड
DNS record that creates an alias from one domain name to another canonical name.
MX रिकॉर्ड
DNS record specifying the mail server responsible for receiving email for a domain.
TXT रिकॉर्ड
DNS record holding arbitrary text data, commonly used for email authentication and domain verification.
NS रिकॉर्ड
DNS record that delegates a DNS zone to an authoritative nameserver.
DNS रिज़ॉल्वर
Software or service that performs recursive DNS lookups on behalf of clients.
DNS कैश (TTL)
Temporary storage of DNS query results with a Time-To-Live expiration.
प्राधिकृत DNS सर्वर
Server that holds the original DNS records for a zone and provides definitive answers.
DNS ज़ोन फ़ाइल
Text file describing a DNS zone with records for all domains in that zone.
SOA रिकॉर्ड
Start of Authority record containing administrative information about a DNS zone.
सबडोमेन
Domain that is part of a larger domain, created by prepending a label (e.g., blog.example.com).
IP पता
Numerical label (IPv4 or IPv6) assigned to each device connected to a computer network.
रिकर्सिव DNS रिज़ॉल्वर
Server that performs the full DNS resolution chain on behalf of clients and caches results.
DNS रूट सर्वर
Top-level nameservers that direct resolvers to the correct TLD nameservers.
DNS ज़ोन
Administrative partition of the DNS namespace managed by a single authoritative authority.
PTR रिकॉर्ड (रिवर्स DNS)
DNS record that maps an IP address back to a hostname for reverse DNS lookups.
DNS प्रतिनिधिमंडल
Transfer of DNS authority for a child zone to designated nameservers via NS records.
DNS राउंड रोबिन
Load-balancing technique using multiple IP addresses on a single hostname to distribute traffic.
DNS सिंकहोल
DNS configuration that redirects malicious domains to a controlled IP to block or analyze threats.
EDNS (DNS के लिए एक्सटेंशन मैकेनिज्म)
RFC 6891 extension to the DNS protocol enabling larger messages, DNSSEC, and new option codes.
DNS प्रवर्धन हमला
DDoS technique exploiting open DNS resolvers to flood a victim with amplified response traffic.
नेगेटिव कैशिंग (NXDOMAIN)
Caching of NXDOMAIN and NODATA DNS responses to prevent repeated queries for non-existent names.