linux命令-修改主机名hostnamectl

修改主机名命令hostnamectl set-hostname <新名称>

命令帮助如下:

[root@localhost ~]# hostnamectl --help
hostnamectl [OPTIONS...] COMMAND ...

Query or change system hostname.

  -h --help              Show this help
     --version           Show package version
     --no-ask-password   Do not prompt for password
  -H --host=[USER@]HOST  Operate on remote host
  -M --machine=CONTAINER Operate on local container
     --transient         Only set transient hostname
     --static            Only set static hostname
     --pretty            Only set pretty hostname

Commands:
  status                 Show current hostname settings
  set-hostname NAME      Set system hostname
  set-icon-name NAME     Set icon name for host
  set-chassis NAME       Set chassis type for host
  set-deployment NAME    Set deployment environment for host
  set-location NAME      Set location for host

命令查询和修改

[root@localhost ~]# hostnamectl 
   Static hostname: localhost.localdomain
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 867aaa1c353c4aad8510c0ee973bc083
           Boot ID: 6f9f8d5dd4f7426daff92ee2e0b736cf
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-693.11.1.el7.x86_64
      Architecture: x86-64
[root@localhost ~]# hostnamectl set-hostname openstack
[root@localhost ~]# hostnamectl 
   Static hostname: openstack
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 867aaa1c353c4aad8510c0ee973bc083
           Boot ID: 6f9f8d5dd4f7426daff92ee2e0b736cf
    Virtualization: kvm
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-693.11.1.el7.x86_64
      Architecture: x86-64