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"""An example demonstrating the limitations of the GIL (CPython). This example
increments a counter for a given challenge so that the first N bits of the SHA1
hash of the challenge are all zeros (0). The computational effort increases
exponentially with the number of bits required to be zero.

This demo illustrates that this task cannot be sped up by parallelizing the
computation."""
import base64
import hashlib
import threading

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import itertools


def row2int(row: str) -> list[int]:
    return list(map(int, row.strip().split(' ')))


def rows2list(fd):
    l = []
    for row in fd:

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import torch
from llama_index.llms import HuggingFaceLLM
from llama_index.prompts import PromptTemplate

selected_model = 'mistralai/Mixtral-8x7B-Instruct-v0.1'

SYSTEM_PROMPT = """You are an AI assistant that answers questions in a friendly manner, based on the given source documents. Here are some rules you always follow:
- Generate human readable output, avoid creating output with gibberish text.
- Generate only the requested output, don't include any other language before or after the requested output.
- Never say thank you, that you are happy to help, that you are an AI agent, etc. Just answer directly.

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FROM python:3.11-slim

WORKDIR /multi

COPY . .

CMD ["python", "./sender.py"]

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WAS_SPACE = 0
NEW_LINE = 1
NEW_WORD = 2
WAS_WORD = 3

SPACES = [9,10,11,12,13,32]
NEWLINE = 10

def init_table():
    # 0 => was space

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import pathlib

import pyais
from pyais.tracker import AISTrackEvent


def do_something(track):
    # called every time an AISTrack is created or updated
    print(track.mmsi, track)

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UDP Hole Punching

The following example demonstrates how to punch a hole through a stateful firewall using UDP. It opens a reverse shell on the server.

⚠️ Using reverse or bind shells can be highly insecure and potentially illegal if executed without authorization. Always ensure you have explicit permission before performing such actions in a network.

Assumptions

• Server: The target machine on which the shell will be opened.
• Client: The machine used to remotely connect to the shell.

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NAT Traversal Setup with Netcat

This guide demonstrates a simple NAT traversal setup using tcpdump and nc (Netcat) for UDP communication.

Step 1: Monitor UDP Request on the Server

On the server, use tcpdump to monitor the incoming UDP packets on port 12345:

sudo tcpdump -i any udp and port 12345

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#!/bin/env python3
"""This is a simple self-contained script to reload an arbitrary application
when its source changes (like using Flask in debug mode). It comes without
any 3rd party dependencies and can run standalone - a copy of this script is
all you need.

Examples:
    ./autostart.py -p '*.py' -i 'venv/*' flake8 autostart.py --max-line-length 120
    ./autostart.py -p '*.py' -i 'venv/*' mypy ./autostart.py
    ./autostart.py -p '*.py' -i 'venv/*' "$(which python3)" ./server.py

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import ctypes
import select
import pathlib

from ctypes import c_char_p, c_int, c_uint32
import os


class EventStruct(ctypes.Structure):