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+# dnsdomainname
+
+> Show the system's DNS domain name.
+> Note: The tool uses `gethostname` to get the hostname of the system and then `getaddrinfo` to resolve it into a canonical name.
+> More information: <https://www.gnu.org/software/inetutils/manual/html_node/dnsdomainname-invocation.html>.
+
+- Show the system's DNS domain name:
+
+`dnsdomainname`