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Complete Guide to Network Protocols: Internet, Security, Hacking & Emerging Protocols

Content Introduction

This complete guide explains all major network protocols from internet fundamentals like HTTP, HTTPS, TCP/IP to security protocols like SSH, SMB, and emerging technologies like QUIC and MQTT, showing how they enable communication and can be exploited in cyber attacks.

Key Information

  • 1HTTP transmits data in plain text while HTTPS uses TLS encryption for security
  • 2TCP/IP ensures reliable data transmission with error checking and routing
  • 3DNS translates domain names to IP addresses but vulnerable to spoofing attacks
  • 4SSH provides encrypted remote access while hackers target misconfigured services
  • 5SMB protocol exploited in WannaCry ransomware attack
  • 6QUIC and MQTT represent next-generation protocols for speed and IoT

Content Keywords

#HTTP/HTTPS Security

HTTP sends plain text data vulnerable to interception; HTTPS adds TLS encryption for secure web communication

#TCP/IP Model

Transmission Control Protocol ensures reliable data delivery; Internet Protocol handles routing across networks

#DNS Spoofing

Cyber attack where hackers manipulate domain records to redirect users to fraudulent websites

#SSH Remote Access

Secure Shell protocol for encrypted remote system management, often targeted by hackers for unauthorized access

#SMB Exploitation

Server Message Block protocol vulnerabilities exploited in ransomware attacks like WannaCry

#QUIC Protocol

Quick UDP Internet Connections reduces latency by minimizing handshake processes for faster web services

#MQTT IoT

Message Queuing Telemetry Transport enables efficient communication for low-power IoT devices and smart systems

Related Questions and Answers

Q1.What is the main security difference between HTTP and HTTPS?

A: HTTP transmits data in plain text vulnerable to interception, while HTTPS uses TLS encryption to protect data and prevent man-in-the-middle attacks

Q2.How can DNS be exploited by hackers?

A: Through DNS spoofing attacks where hackers manipulate domain records to redirect users to fraudulent websites for phishing schemes

Q3.Why is SSH important for both security professionals and hackers?

A: SSH provides encrypted remote access for secure system management, but misconfigured SSH services give hackers unauthorized access to compromised systems

Q4.What makes QUIC faster than traditional TCP?

A: QUIC minimizes connection handshake delays and uses UDP instead of TCP, reducing latency for web browsing and streaming

Q5.How do WPA2 and WPA3 protect wireless networks?

A: They encrypt Wi-Fi communications to prevent eavesdropping, with WPA3 providing stronger protection against brute force attacks

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