Linux中hostname中三种hostname的理解

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本文详细介绍了Fedora32 Workstation Edition系统的主机名配置情况，包括静态主机名、临时主机名及虚拟化环境。深入解析了hostnamectl命令的使用，展示了Linux内核版本、操作系统类型等关键信息。

[syh@localhost-live ~]$ hostnamectl
   Static hostname: localhost.localdomain
Transient hostname: localhost-live
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 861fe4dbbde84e07afe8f7e9b0c351be
           Boot ID: 574132159c3e47cebac833fd52e55614
    Virtualization: kvm
  Operating System: Fedora 32 (Workstation Edition)
       CPE OS Name: cpe:/o:fedoraproject:fedora:32
            Kernel: Linux 5.6.6-300.fc32.x86_64
      Architecture: x86-64

the high-level “pretty” hostname which might include all kinds of special characters (e.g. “Lennart’s Laptop”), the static hostname which is used to initialize the kernel hostname at boot (e.g. “lennarts-laptop”), and the transient hostname which is a fallback value received from network configuration. If a static hostname is set, and is valid (something other than localhost), then the transient hostname is not used.