Windows11 WSL subsystem ubuntu22.04 modify hostname

Everyone knows that in the past, we only need to modify
/etc/hostnamethe name in this file to modify the hostname of the Linux system, but modifying the file in WSL will not take effect.

To modify the Hostname and make it effective, we must modify /etc/wsl.confthe file .

edit configuration file

sudo vi /etc/wsl.conf

Change parameters

Change hostname =the following LAPTOP-40AMMKE8to the name you want

[network]
hostname = LAPTOP-40AMMKE8
generateHosts = false

For example, if we change to ubuntu22, save and exit

[network]
hostname = ubuntu22
generateHosts = false

Restart WSL

• exit WSL

exit

• close WSL

wsl --shutdown

• Start WSL

wsl

So far the renaming operation has been completed.

Handle follow-up questions

But when you use sudocommand escalation to execute the command, the following error message appears

sudo: 无法解析主机：ubuntu22: 未知的名称或服务

We need to edit /etc/hoststhe file to add the previously modified hostname

sudo vi /etc/hosts

add a record127.0.0.1 名称

It is normal to use sudothe command .