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This is an optional step, which details how to specify the node hostname

DescriptionCommand

这是一个可选步骤，详细说明了如何指定节点主机名

描述

指令

1

Update the 更新/ etc / hosts file

Replace the default hostname with your desired hostnameThe default hostname typically follows "127

hosts文件

- 用您想要的主机名替换默认主机名
  - 默认主机名通常遵循“127.0.1.1", DO NOT REPLACE "localhost"
  - See example in bold
  - You may need to disable "manage_etc_hosts" like in the example
- Save and exit with CTRL+x, then type y and hit enter.

NOTE: In the example I use "node01" as my hostname. I'm using the same hostname as my example FQDN:

- - 1”，不要替换“localhost”
  - 请参见粗体示例
  - 您可能需要像示例中那样禁用“manage_etc_hosts”
- 使用CTRL + x保存并退出，然后键入y并按Enter键。

注意：在示例中，我使用“node01”作为主机名。我使用与我的示例FQDN相同的主机名：

node01.zentest.win

Code Block
sudo nano /etc/hosts

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# Your system has configured 'manage_etc_hosts' as True.
# As a result, if you wish for changes to this file to persist
# then you will need to either
# a.) make changes to the master file in /etc/cloud/templates/hosts.tmpl
# b.) change or remove the value of 'manage_etc_hosts' in
#......./etc/cloud/cloud.cfg or cloud-config from user-data

127.0.1.1 node01
127.0.0.1 localhost

# The following lines are desirable for IPv6 capable hosts
::1 ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
ff02::3 ip6-allhosts

2

Update the 升级/etc/hostname file

Replace the existing hostname with your desired hostname

文件

用您想要的主机名替换现有的主机名

Code Block
sudo nano /etc/hostname

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node01

3

Use systemd services to set the hostname, replacing <HOSTNAME> with your desired hostname使用systemd服务设置主机名，将<HOSTNAME>替换为所需的主机名

Code Block
sudo hostnamectl set-hostname <HOSTNAME>

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zenops@vps421337:~$ sudo hostnamectl set-hostname node01

4

Reboot the node and log back in as your non-root user to test that the host name has changed

You will see the new hostname at your terminal prompt

重新引导节点并以非root用户身份重新登录，以测试主机名是否已更改

您将在终端提示符下看到新的主机名

Code Block
sudo reboot

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zenops@node01:~$

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