netstack

wsl windows subsytem for linux

Enable Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

Enable wsl

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux -All

Enable wsl2

Enable-WindowsOptionalFeature -Online -FeatureName VirtualMachinePlatform -All

Verify install

dism.exe /online /enable-feature /featurename:VirtualMachinePlatform /all /norestart
dism.exe /online /enable-feature /featurename:Microsoft-Windows-Subsystem-Linux /all /norestart

check version should be 2
```
wsl --version
```

switche to 2 if no

wsl --install
wsl --set-default-version 2

Install Distro (will list) or download a distribution
```
wsl --install
```
Place the distribution other than C: Reference
Changing the extension from .AppxBundle or .Appx to .zip and extract it.
copy the extracted folder to your any drive where you like to have WSL Linux and run .exe
put crap in gui ``` Open terminal and go to settings Step 1: add a new profile > new empty profile Step 2: change name as you want Step 3: change the command line to C:\WINDOWS\system32\wsl.exe -d Ubuntu Step 4: Change starting directory to ~ Step 5: Change Icon if you want to, you can find icons folder (.\Assets) in your distro folder. Step 6: Save the changes and that’s all. After installation, there will be an ext4.vhdx file which is the main virtual disk. If you ever wish to reset Linux simply run

wsl –list –verbose #to check all the installed distro wsl –unregister Ubuntu #to remove the distro

The ext4.vhdx file will be deleted, and you can again run Ubuntu.exe setup file to start over.

- ext4.vhdx filenames by referencing the registry, ex: powershell:
```powershell
(Get-ChildItem HKCU:\Software\Microsoft\Windows\CurrentVersion\Lxss | ForEach-Object {Get-ItemProperty $_.PSPath}) | select DistributionName,BasePath,VhdFileName

wsl portproxy

wsl portproxy from windows os

show portproxy on winos
```
netsh interface portproxy show all
```
find the_wsl_ip (usually eth0) on wsl
```
ip a
```
add port to unix firewall ufw on wsl
```
sudo ufw allow 8000
```

add port to windows firewall in powershell on winos

New-NetFirewallRule -DisplayName "Allow Inbound Port 8000" -Direction Inbound -LocalPort 8000 -Protocol TCP -Action Allow

forward port to wsl in powershell on winos.

netsh interface portproxy add v4tov4 listenport=8000 listenaddress=0.0.0.0 connectport=8000 connectaddress=<the_wsl_ip> 

show portproxy on winos
```
netsh interface portproxy show all
```

Backup / Move

To move a WSL (Windows Subsystem for Linux) distribution to a new computer, you can export it as a .tar file and then import it on the new machine. This process involves using the wsl –export command to create the backup, transferring the file, and then using wsl –import to restore it.

Steps to Backup and Move WSL:

Backup on the old machine:
- Open PowerShell or Command Prompt as an administrator.
- Stop the WSL instance: If the distribution is running, stop it using
```
  wsl --shutdown or wsl --terminate <DistributionName>
```
- Export the distribution command to create a .tar backup. Replace with the name of your WSL distribution (e.g., "Ubuntu-20.04") and with the desired path and filename for the backup (e.g., "C:\backups\ubuntu_backup.tar").
```
  wsl --export <DistributionName> <FileName>
```
Transfer the generated .tar file to the new computer using your preferred method (e.g., USB drive, network share).
Import on the new machine:
- Open PowerShell or Command Prompt as an administrator on the new computer.
- Unregister any existing distribution with the same name: if needed:
```
  wsl --unregister <DistributionName>
```
- Import the distribution: Use the import command. Replace with a new name for the distribution, with the desired directory for the installation (e.g., "D:\WSL\Ubuntu"), and with the path to the .tar file.
```
  wsl --import <NewDistributionName> <InstallLocation> <BackupFilePath>
```
Set the default user: If needed, configure the default user for the imported distribution using ubuntu.exe config –default-user .
Launch the distribution: Run to start the imported distribution.
```
  wsl --distribution <NewDistributionName>
```

Important Notes:

WSL Version: These instructions generally apply to WSL2. If you have a WSL1 distribution, you’ll need to back up the %localappdata%\lxss directory instead of using wsl –export, says Ask Ubuntu.
File System: WSL uses a virtual hard disk (VHD) file for its file system. For WSL2, you can also use the –vhd flag with wsl –import to import the VHD directly, which can be faster.
Permissions: When restoring a WSL1 backup, you might need to manually reset file permissions.
Disk Space: The .tar backup file can be quite large, so ensure you have enough disk space on both the source and destination machines.
New Name: When importing, it’s recommended to use a new name for the distribution to avoid potential conflicts, according to a Reddit user.