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Fix "No wireless interface found" on a Raspberry Pi

Step 1 - Fix the interfaces file

Remove everything but first 'source-directory' line in /etc/network/interfaces.

Using nano:

sudo nano /etc/network/interfaces

The problem

WSL2 uses a random network from the 172.16.0.0/12 RFC1918 private IP address block. And our VPN uses that address block, too, with a route metric of 1 (= most preferred.)

This breaks networking for WSL2. Meh!

The solution

While messing around with the interface/route metric of the VPN network may work around the problem, it also reduces the priority of the VPN. We do not really want this. Additionally, changing the interface metric does not seem to be permanent, so it requires more work when it breaks again.

	# Sample configuration for dnsmasq to function as a proxyDHCP server,
	# enabling LTSP clients to boot when an external, unmodifiable DHCP
	# server is present.
	# The main dnsmasq configuration is in /etc/dnsmasq.conf;
	# the contents of this script are added to the main configuration.
	# You may modify the file to suit your needs.

	# Don't function as a DNS server:
	port=0

	[
	{
	"code": "aa",
	"name": "Afar",
	"native": "Afar"
	},
	{
	"code": "ab",
	"name": "Abkhazian",
	"native": "Аҧсуа"

	MIT License

	Copyright (c) 2021 Daniel Ethridge

	Permission is hereby granted, free of charge, to any person obtaining a copy
	of this software and associated documentation files (the "Software"), to deal
	in the Software without restriction, including without limitation the rights
	to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the Software is
	furnished to do so, subject to the following conditions:

	#!/bin/bash

	# Written by Frans Rosén (twitter.com/fransrosen)
	_debug="$2" #turn on debug
	_timeout="20"
	#you need a valid key, since the errors happens after it validates that the key exist. we do not need the secret key, only access key
	_aws_key="AKIA..."
	H_ACCEPT="accept-language: en-US,en;q=0.9,sv;q=0.8,zh-TW;q=0.7,zh;q=0.6,fi;q=0.5,it;q=0.4,de;q=0.3"
	H_AGENT="user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.146 Safari/537.36"

	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Image to Base64</title>
	</head>
	<body>
	<input type="file" id="fileInput" accept="image/*">
	<div id="imageContainer"></div>

	// Si5351_WSPR
	//
	// Simple WSPR beacon for Arduino Uno, with the Etherkit Si5351A Breakout
	// Board, by Jason Milldrum NT7S.
	//
	// Original code based on Feld Hell beacon for Arduino by Mark
	// Vandewettering K6HX, adapted for the Si5351A by Robert
	// Liesenfeld AK6L <ak6l@ak6l.org>. Timer setup
	// code by Thomas Knutsen LA3PNA.
	//

	# Set the control character to Ctrl+Spacebar (instead of Ctrl+B)
	set -g prefix C-space
	unbind-key C-b
	bind-key C-space send-prefix

	# Set new panes to open in current directory
	bind c new-window -c "#{pane_current_path}"
	bind '"' split-window -c "#{pane_current_path}"
	bind % split-window -h -c "#{pane_current_path}"