How To Use Proxy on WSL2 Ubuntu for APT, etc.

wsl2.txt

How To Set Proxy on WSL2 Ubuntu for APT, etc.

1. Add the ip address of your host machine and the port that the proxy runs on to .bashrc:

// .bashrc

export http_proxy="http://proxy:port"
export https_proxy="http://proxy:port"

2. Add the proxy and port to /etc/apt/apt.conf.d/proxy.conf as well:
   sudo touch /etc/apt/apt.conf.d/proxy.conf
sudo nano /etc/apt/apt.conf.d/proxy.conf

// proxy.conf

Acquire::http::Proxy "http://987.654.32.1:1234/";
Acquire::https::Proxy "http://987.654.32.1:1234/";

3. And finally, add an appropriate rule to the Windows Firewall on port 1234 (else, WSL2 is unable to communicate with the proxy). Be careful here!

Windows Defender:
Allow Port to Inbound and Outbound rules.

DONE.

Example

CURL

curl --proxy http://proxy:port --url www.google.com