Jul 01, 2019
2 days ago · [*]A hostname is a domain name that has at least one associated IP address. For example, the domain names www.example.com and example.com are also hostnames, whereas the com domain is not. However, other top-level domains, particularly country code top-level domains, may indeed have an IP address, and if so, they are also hostnames. Network & Hostname :: CentOS Docs Site Below the list of connections, enter a host name for this computer in the Hostname input field. The host name can be either a fully-qualified domain name (FQDN) in the format hostname.domainname or a short host name in the format hostname.Many networks have a Dynamic Host Configuration Protocol (DHCP) service that automatically supplies connected systems with a domain name. Hostname or subdomain? - Server Fault The full domain name of a computer, whether the computer does or does not have that full name set on the computer as its host name. To complicate this, there is absolutely no reason that either of the things you mentioned in your question is a "hostname" in the first sense of the word.
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