Liangxu Linux

Nov 22, 2022 · Fundamentals

Why Do DNS Names End With a Dot? Unraveling FQDNs, Zone Files, and Search Domains

This article explains why a trailing dot appears in DNS names, how fully‑qualified domain names (FQDNs) are encoded, the role of zone files and search domains, and when tools like dig, curl, or system resolvers add or omit the dot.