文章目录
- 背景
- Linux如何修改主机名(hostname)方法
- 方法
- 1. 使用 `hostnamectl` 命令
- 示例
- 2. 编辑 `/etc/hostname` 文件
- 注意事项
背景
我创建虚拟机的时候没设置主机名,现在显示localhost,有点尴尬😅:
需要重新设置主机名。
Linux如何修改主机名(hostname)方法
要想在虚拟机的 Linux 系统内部改变主机名(hostname),需要通过系统的配置来修改。在大多数基于 Red Hat 的 Linux 发行版(比如 CentOS、Fedora)中,可以按照以下步骤操作:
方法
1. 使用 hostnamectl
命令
hostnamectl set-hostname your-new-hostname
将 your-new-hostname
替换为想要设置的新主机名。
完后还需要重启或执行以下命令使修改生效:
systemctl restart network
示例
我将主机名由localhost
改成k8s-node1
:
因为我是用ssh连接的,更改后没有立即刷新,我重新登录一下,就可以看到修改结果了:
2. 编辑 /etc/hostname
文件
echo your-new-hostname > /etc/hostname
或者使用文本编辑器手动编辑 /etc/hostname
文件,并将里面的内容替换为新主机名。
之后,可以重新启动系统或者使用以下命令使主机名更改立即生效:
systemctl restart network
注意事项
可能需要编辑 /etc/hosts
文件,将其中引用旧主机名的条目更新为新主机名。
但是大多数情况可能无需更改,除非在/etc/hosts
文件里做了什么硬编码骚操作🤣。
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