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🔍 The Ultimate Grep Command Guide

🚀 Basic Usage

Command	Description	Example
grep pattern file	🔎 Search for a pattern in a file	grep error logfile.txt
grep -i pattern file	🔠 Case-insensitive search	grep -i ERROR logfile.txt
grep -w word file	🔤 Match whole words only	grep -w error logfile.txt
grep -v pattern file	❌ Invert match (show lines that don't match)	grep -v success logfile.txt

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🔐 The Ultimate Guide to Managing Multiple SSH Keys

🚀 Basic Concepts

• 🔑 SSH keys consist of a public key and a private key
• 📂 Keys are typically stored in ~/.ssh/
• 🔒 Private keys should be kept secure and never shared
• 📤 Public keys are added to remote servers or services

📊 Creating SSH Keys

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Rust-Based Web Crawler with Kafka and PostgreSQL Integration - Design Specification

1. Introduction

1.1 Overview

This document outlines the design specification for a high-performance Rust-based web crawler integrated with Apache Kafka and PostgreSQL. The crawler will act as a worker within a distributed system, consuming URLs from Kafka topics, crawling the associated web pages, and storing the results in a PostgreSQL database. Docker Compose will be utilized to manage the infrastructure, ensuring seamless deployment and orchestration of the services.

1.2 Objectives

• Develop a high-performance web crawler using Rust that integrates with Kafka and PostgreSQL.
• Ensure scalable crawling of up to 10 million websites.

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CSS Selector Cheat Sheet with Advanced Bitwise Operators

Basic Selectors

Selector	Example	Description
*	* { }	Selects all elements
elementname	p { }	Selects all <p> elements
.classname	.intro { }	Selects all elements with class="intro"
#idname	#firstname { }	Selects the element with id="firstname"

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🖤 The Evil 'Ol Hacker's One-Liner Cheat Sheet 🖤

1. 🌀 Fork Bomb (Denial of Service)

Recursively spawns processes until the system crashes.

:(){ :|: & };:  # 🧨 Boom!

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[
    {
        "id": "cards_structure_seed_100_low_entropy",
        "category": "structure",
        "description": "Verify minimal card count at low entropy",
        "url": "https://proteus-target.vercel.app/lab/cards?seed=100&entropy=0.1&profile=structure",
        "parameters": {
            "seed": 100,
            "entropy": 0.1,
            "profiles": [

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🔧 The Ultimate JQ Cheat Sheet

jq — lightweight, flexible command-line JSON processor

📋 Table of Contents

• Basics
• Navigation
• Arrays
• Objects
• Filtering & Selection

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#!/usr/bin/env python3
"""Fetch GitHub traffic stats for all repositories using gh CLI."""

import json
import subprocess
import sys
from concurrent.futures import ThreadPoolExecutor, as_completed

def run_gh(args: list[str]) -> dict | list | None:
    """Run gh api command and return parsed JSON."""

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Supplemental IOC & Infrastructure Intelligence

Toll Booth Phishing Campaign — Deep Dive Follow-Up

Context: This supplements Ben Polonsky's writeup with net-new findings from active infrastructure reconnaissance conducted 2026-03-28. All probing was passive/non-invasive against already-identified phishing infrastructure.

---

1. Backend Framework Identification

The article identified OpenResty 1.29.2.1 as the web server. Behind it sits a second layer:

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## The Six Laws (Never Break These)

1. **Determinism** — Frontier ordering is seed-driven. Retry logic is explicit. No hidden randomness anywhere. No `rand` in core paths — seeded PRNG only.
2. **Idempotence** — Same URL + same execution context = identical artifact hash.
3. **Content Addressability** — All artifacts are BLAKE3 hash-addressed. Deduplication is structural.
4. **Temporal Integrity** — Every capture binds wall clock + logical clock + crawl context + dependency chain.
5. **Replay Fidelity** — Stored artifacts must be sufficient to reconstruct the HTTP exchange, DOM state, and resource dependency graph.
6. **Observability as Proof** — Every decision is queryable. Every failure is replayable. Every artifact is verifiable.