| /* | |
| * This program demonstrates a simple Object-Oriented Programming (OOP) | |
| * approach in C using function pointers and structures. It renders pixel | |
| * effects onto an RGBA32 buffer using SDL2 for window management and display. | |
| * | |
| * Supported effects: | |
| * - Bitwise operations pattern | |
| * - Mandelbrot fractal visualization | |
| * | |
| * Key controls: |
| // SPDX-License-Identifier: MIT // OK | |
| // Creator: andreitoma8 // OK | |
| pragma solidity ^0.8.4; // OK | |
| import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; // OK | |
| import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; // OK | |
| import "@openzeppelin/contracts/token/ERC721/IERC721.sol"; // OK | |
| import "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol"; // OK | |
| import "@openzeppelin/contracts/access/Ownable.sol"; // OK |
| // SPDX-License-Identifier: MIT | |
| pragma solidity ^0.8.4; | |
| import "@openzeppelin/contracts/utils/Counters.sol"; | |
| import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; | |
| import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; | |
| import "hardhat/console.sol"; | |
| contract NFTMarketplace is ERC721URIStorage { |
You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228
This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders
sudo egrep -I -i -r '\$(\{|%7B)jndi:(ldap[s]?|rmi|dns|nis|iiop|corba|nds|http):/[^\n]+' /var/log
| Connect & Disconnect | |
| --- | |
| import json | |
| def lambda_handler(event, context): | |
| print(event) | |
| print("****") | |
| print(context) | |
| #!/bin/bash | |
| # video demo - https://www.youtube.com/watch?v=Y8TyE_DNds8 | |
| mkdir ~/.tmp && cd $_ | |
| # install aws-cli v2 | |
| curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" && \ | |
| unzip awscliv2.zip && \ | |
| sudo ./aws/install |
| default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam' | |
| default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes' | |
| default['sshd']['sshd_config']['PasswordAuthentication'] = 'no' |
| #-*- coding:utf-8 -*- | |
| #!/usr/bin/env python | |
| import requests | |
| from bs4 import BeautifulSoup | |
| import re | |
| import shutil | |
| import os | |
| out='/home/coericnb' |
Recommended snack and song:
220ml of dark roasted full bodied coffee brewed in french press accompanied by a banana while listening to [Liquid Tension Experiment]
tl;dr: You can go ahead and clone [this repo], it's got the end result of this in-depth tutorial bellow.
Here's what we will be doing for becoming smart-contract heroes! - Install the dev environment plus MetaMask. - Develop a very simple voting smart contract.
