Centos7中提供了设置主机名的工具hostnamectl hostname有三种状态static（永久）transient（瞬态）pretty（灵活） 查看主机名状态 [oracle@hadoop]$hostnamectlstatusStatichostname:hadoopIconname:computer-vmChassis:vmMachineID:52f2b03b2afb46be8b195895d9025dd3BootID:e948f0f5e7524fb38c56f36dfbe4abb7Virtualization:vmwareOperatingSystem:CentOSLi...