CentOS7 修改主机名

最新推荐文章于 2023-07-22 16:36:45 发布

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最新推荐文章于 2023-07-22 16:36:45 发布

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分类专栏： linux 文章标签： linux

本文链接：https://blog.youkuaiyun.com/qq_21896123/article/details/113896945

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1、查看主机名: hostnamectl

[root@jisen ~]# hostnamectl
   Static hostname: jisen.com
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 718f45d62a4741118369091503759694
           Boot ID: f3a28e9de73a4a56a4990069bbf23641
    Virtualization: vmware
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-1062.18.1.el7.x86_64
      Architecture: x86-64
[root@jisen ~]#

2、修改主机名，会立即生效重启也生效

[root@jisen ~]# hostnamectl set-hostname centos103 --static
[root@jisen ~]# hostnamectl
hostnamectl
   Static hostname: centos103
         Icon name: computer-vm
           Chassis: vm
        Machine ID: 718f45d62a4741118369091503759694
           Boot ID: f3a28e9de73a4a56a4990069bbf23641
    Virtualization: vmware
  Operating System: CentOS Linux 7 (Core)
       CPE OS Name: cpe:/o:centos:centos:7
            Kernel: Linux 3.10.0-1062.18.1.el7.x86_64
      Architecture: x86-64
[root@jisen ~]#

3、修改host文件，将主机名添加到文件中

[root@jisen ~]# vim /etc/hosts
[root@jisen ~]# cat /etc/hosts
127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4 centos103
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6
[root@jisen ~]#

4、测试

[root@jisen ~]# ping centos103
PING localhost (127.0.0.1) 56(84) bytes of data.
64 bytes from localhost (127.0.0.1): icmp_seq=1 ttl=64 time=0.127 ms
64 bytes from localhost (127.0.0.1): icmp_seq=2 ttl=64 time=0.063 ms
64 bytes from localhost (127.0.0.1): icmp_seq=3 ttl=64 time=0.069 ms