> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/handbook/di-7-zhang-wang-luo/7.5.-zhu-ji-ming.md).

# 7.5.主机名

主机名表示网络中主机的完全限定域名（FQDN）。

> **技巧**
>
> 如果主机未设置主机名，FreeBSD 会将自己称为“Amnesiac”。

## 7.5.1. 检查当前主机名

可以使用 [hostname(1)](https://man.freebsd.org/cgi/man.cgi?query=hostname\&sektion=1\&format=html) 来检查当前主机名：

```sh
$ hostname
```

输出应类似于以下内容：

```sh
freebsdhostname.example.com
```

## 7.5.2. 更改主机名

要更改主机名并使其在重启后保持，执行以下命令：

```sh
# sysrc hostname="freebsdhostname.example.com"
```


---

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