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Raspberry PI Secure SSH Setup with ZSH

In this guide, I'll walk you through setting up a secure SSH environment on a Raspberry Pi using ZSH. The goal is to enhance the security of your Raspberry Pi by configuring SSH, implementing two-factor authentication with Google Authenticator, changing the default SSH port, and setting up a firewall with UFW and Fail2Ban for added protection against brute-force attacks. Additionally, we'll customize your shell experience by installing and configuring ZSH along with Oh-My-ZSH.

Prerequisites

Raspberry PI Configuration Tool

sudo raspi-config

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#include <iostream>
#include <list>
#include <utility>
#include <random>
#include <algorithm>
#include <iterator>
#include <vector>
#include <SFML/System.hpp>
#include <SFML/Graphics.hpp>

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Param(
  [Parameter(Mandatory = $true, Position = 0)]
  [string] $RegistryPath,
  [Parameter(Mandatory = $true, Position = 1)]
  [string] $SearchQuery,
  [Parameter(Mandatory = $true, Position = 2)]
  [string] $NewValue
)

$Registry = Get-ChildItem $RegistryPath -Recurse

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function attachMapRenderer(canvas: HTMLCanvasElement, mapUrl: string) {
  const img = new Image(); img.src = mapUrl;
  img.onload = () => {
    const wCanvas = canvas.width, hCanvas = canvas.height;
    const wImg = img.width, hImg = img.height;
    const dragMarginX = wImg - wCanvas, dragMarginY = hImg - hCanvas;

    const ctx = canvas.getContext('2d');
    if (!ctx) throw new Error('Canvas API error');