Lushiane

#!/bin/bash
#--------------------------------------------------------------------------------#
#                                                                                #
# Fix WSL DNS resolution with Cisco AnyConnect                                   #
#                                                                                #
# ! Don't forget to set this configuration in /etc/wsl.conf:                     #
#        [network]                                                               #
#        generateResolvConf = false                                              #
#                                                                                #
# Based on:                                                                      #

Lushiane

More recent resolution:

1. cd ~/../../etc (go to etc folder in WSL).
2. echo "[network]" | sudo tee wsl.conf (Create wsl.conf file and add the first line).
3. echo "generateResolvConf = false" | sudo tee -a wsl.conf (Append wsl.conf the next line).
4. wsl --terminate Debian (Terminate WSL in Windows cmd, in case is Ubuntu not Debian).
5. cd ~/../../etc (go to etc folder in WSL).
6. sudo rm -Rf resolv.conf (Delete the resolv.conf file).
7. In windows cmd, ps or terminal with the vpn connected do: Get-NetIPInterface or ipconfig /all for get the dns primary and
secondary.