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  • "Strictly speaking, there is no such thing as network-unrelated "computer name" in Linux" - Doesn't it depend on the service? For example, I think the Windows equivalent is the NetBIOS name. Its the friendly name without the domain parts, and it may be different from the host part of a domain name (fully qualified or not). Commented Jun 17, 2016 at 4:19
  • NetBIOS name is still a network name, even if it's different from a domain name. Commented Jun 17, 2016 at 8:24
  • tools.ietf.org/html/rfc1178 advises NOT to use a domain name for the name of your computer. One computer can provide a server for multiple domain names. In this case hostname can only supply one of the servers. Commented Oct 1, 2020 at 5:33