wsl2-dns-fix-config's Introduction

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:

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

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wsl2-dns-fix-config's Issues

When "/etc/resolv.conf" is already immutable it will give out "Operation not permitted" error

In a situation where /etc/resolv.conf has already been marked as immutable, and the bash script is run again, it will give the error below:

$ sudo sh ./run.sh
rm: cannot remove '/etc/resolv.conf': Operation not permitted
cp: cannot create regular file '/etc/resolv.conf': Operation not permitted
WSL name resolution configured
Restart WSL on Windows: "wsl --shudown"

Remove "fix" from the repository name

A more applicable name for the repository would be "wsl2-dns-config" as opposed to the current one "wsl2-dns-fix-config".

There are no penalties for broken links as GH will route it to the new repository as long as it is not re-used, but the readme documentation should be updated as it has links to the release artifacts.