DNS

• Domain Name System (DNS)

• domain name

• name server

• top-level domain (TLD)

• DNS root zone

• DNS zone

• reverse DNS lookup (or reverse DNS resolution) (rDNS)

• DNS PTR

• root name server

• TLD name server

• authoritative name server

• resource records (RRs)

  • (Name, Value, Type, Class, TTL)

(source: commons.wikimedia.org)