WSL2 DNS Fix/Config

One-liner shell script that will setup your WSL2 image to use custom nameserver 8.8.8.8 from Google.

Usage

Clone and run the shell:

sudo sh ./run.sh

Restart WSL:

wsl --shutdown

All done. Make sure you read what it does.

⁉️ GitHub DNS not resolving?

You can try curl --resolve with one of GitHub's IP addresses to force DNS resolution:

curl --resolve 'codeload.github.com:443:20.201.28.149' 'https://codeload.github.com/epomatti/wsl2-dns-fix-config/tar.gz/refs/tags/v1.0.1' -o wsl2-dnsfix.tar.gz

tar -xf wsl2-dnsfix.tar.gz

cd wsl2-dns-fix-config-1.0.1

sudo sh ./run.sh

This will work in distros like Ubuntu 22.04 which are not recognizing github.com out of the box.

Yet another way is to get the archive from the releases:

curl -L 'https://github.com/epomatti/wsl2-dns-fix-config/archive/refs/tags/v1.0.1.tar.gz' -o wsl2-dnsfix.tar.gz

What it does

The run.sh script will perform these tasks:

1. Delete the following files: /etc/wsl.conf and /etc/resolv.conf

2. Create the new ".conf" files (pre-created in the dist folder) setting Google DNS for name resolution and preventing WSL from overriding it:

   # /etc/wsl.conf
   [network]
   generateResolvConf = false
   

   # /etc/resolv.conf
   nameserver 8.8.8.8
   

3. Make /etc/resolv.conf immutable

Contributing

Feel free to open an issue/discussion or send a pull request.

Tested on:

• Ubuntu 22.04
• Ubuntu 20.04

Source / Credits

https://gist.github.com/coltenkrauter/608cfe02319ce60facd76373249b8ca6