Solve the problem of win10 wsl2 IP change

At present Win10 User add modify hosts File permissions

1. open C:\Windows\System32\drivers\etc Folder found hosts file , Right click to select Properties , Locate the security tab ;

2. Click Edit to find the current user group , Add full control permission to it ;
   
   

3. Click ok , Select Yes in the pop-up prompt box ;

4. At this point, the current user should be able to modify hosts The file .

Write a script

#!/usr/bin/bash
#  start-up ssh service 
/etc/init.d/ssh start
#  start-up mysql service 
/etc/init.d/mysql start
#  start-up docker service 
/etc/init.d/docker start
# set wsl host for Windows
# win hosts file path
win_hosts_path="/mnt/c/Windows/System32/drivers/etc/hosts"
#  by  wsl2  Set the domain name 
wsl_domain="ubuntu"
#  obtain  wsl2  Of  ip
wsl_ip=$(ifconfig eth0 | grep -w inet | awk '{print $2}')
#  Judge whether there is  wsl2  Domain name of , Modify... If it exists , Otherwise, add 
if grep -wq "$wsl_domain" $win_hosts_path
then
    #  There is no direct use here because of permission problems  sed  modify  hosts  file 
    win_hosts=$(sed -s "s/.* $wsl_domain/$wsl_ip $wsl_domain/g" $win_hosts_path)
    echo "Windows In the system  wsl Domain name exists , Reset mapping "
    echo "$win_hosts" > $win_hosts_path
else
    echo "Windows In the system  wsl The domain name doesn't exist , Add... Directly ${wsl_ip} ${wsl_domain}"
    echo "$wsl_ip $wsl_domain" >> $win_hosts_path
fi

#  by  wsl  Set up  win host
wsl_hosts_path="/etc/hosts"
win_domain="win"
win_ip=$(cat /etc/resolv.conf | grep "nameserver" | awk '{print $2}')
if grep -wq "$win_domain" $wsl_hosts_path
then
    wsl_hosts=$(sed -s "s/.* $win_domain/$win_ip $win_domain/g" $wsl_hosts_path)
    echo "Linux In the system  windows Domain name exists , Reset mapping "
    echo $wsl_hosts > $wsl_hosts_path
else
    echo "Linux In the system  windows The domain name doesn't exist , Add... Directly ${win_ip} ${win_domain}"
    echo "$win_ip $win_domain" >> $wsl_hosts_path
fi

Boot up configuration

routine
Usually in Linux You can start the machine by
1. edit /etc/rc.loacl
2. stay /etc/init.d/ Add startup script under
3. To configure systemd
But these methods are in the subsystem Can't use , We can go through Windows Indirectly start the services in the subsystem .

Set executable

sudo chmod +x /etc/init.sh

stay Windows Create scripts in
stay Windows Next Enter the shortcut key WIN+R Open the run window
Input shell:startup
open Windows Startup script directory
Create a new linux-start.vbs
The contents are as follows

Set ws = WScript.CreateObject("WScript.Shell")        
ws.run "wsl -d Ubuntu-18.04 -u root /etc/init.wsl"

In the script above wsl -d The following parameters are the version of the subsystem you installed Can pass wsl -l see