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def singleton(cls):
    _instance = {}

    def inner():
        if cls not in _instance:
            _instance[cls] = cls()
        return _instance[cls]

    return inner()

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#! /usr/bin/env python3
# -*- coding: utf-8 -*-
import sys
import dns.resolver


def check_dns(domain_name: str, dns_server: str):
    # Create a DNS resolver instance and set the nameserver to the DNS server you want to query
    resolver = dns.resolver.Resolver(configure=False)
    resolver.nameservers = [dns_server]

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#!/usr/bin/env python3
import subprocess
import requests

def get_domain_locations(domain_name: str) -> dict:
    # Use dig command to retrieve IP addresses of domain
    result = subprocess.run(['dig', '+short', domain_name], stdout=subprocess.PIPE)
    ip_addresses = result.stdout.decode('utf-8').strip().split('\n')
    ip_addresses = [i for i in ip_addresses if i.count('.') == 3]

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Setup SSH Authentication for Git Bash on Windows

Prepararation

1. Create a folder at the root of your user home folder (Example: C:/Users/username/) called .ssh.
   You can run something like: mkdir -p ~/.ssh
2. Create the following files if they do not already exist (paths begin from the root of your user home folder):

albertofwb

#include <string.h>
#include <assert.h>

struct MatchOffset {
	int start;
	int end;
	int GetMatchedCount() {
		return end - start;
	}
};

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#include <Windows.h>
#include <deque>
#include <string>


void ListFilesBFS(const std::string& root_dir)
{
	std::deque<std::string> output;
	WIN32_FIND_DATA findfiledata;
	HANDLE hFind = INVALID_HANDLE_VALUE;

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from os import path
from os import mkdir
from os import getenv
from os import name as os_name
from time import time

total_files_count = 12345
MAX_FILES_SINGLE_DIR = 500
DEBUG_DIR_NAME = "TestCreateFiles"
DIR_PREFIX = "dir_"

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#!/usr/bin/env python

"""Simple HTTP Server With Upload.

This module builds on BaseHTTPServer by implementing the standard GET
and HEAD requests in a fairly straightforward manner.

"""

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#! /usr/bin/env python
# encoding: utf-8
# Edit time: 2018-06-05 20:32
# This scripts print some hack attack affect
# Just makes ordinary people think about we are hacking an account
import sys
from time import sleep
import random
import string

albertofwb

// copy from: https://stackoverflow.com/questions/13479833/java-swt-animated-gif
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.widgets.Canvas;