Set & persist Google DNS server in WSL2

Here is how you setup an alternative DNS server (like. Google DNS) on WSL2 and persist it between WSL restart:

1. Create the WSL config file (if it does not already exist): /etc/wsl.conf
2. Enter the following lines to preserve the DNS config between restarts:

   [network]
   generateResolvConf = false
   

3. Shutdown WSL and start again by running the following command in Windows terminal: wsl --shutdown
4. Edit (or, create) the file /etc/resolv.conf:
   1. Comment any other line that starts with “nameserver”.
   2. Enter the following lines:

      nameserver 8.8.4.4
      nameserver 8.8.8.8
      

5. Restart WSL again after running the following command in Windows terminal: wsl --shutdown