Wireshark Tutorial — Network Packet Analysis for Beginners

Wireshark — Packet Analysis Made Easy

Wireshark is the world's most popular network protocol analyzer. It captures packets in real-time and displays them in a human-readable format.

Getting Started

1. Download from wireshark.org (free)
2. Select network interface
3. Click Capture → Start

Essential Display Filters

• http.request.method == "POST" — Find login attempts
• tcp.port == 21 — FTP traffic (passwords in plaintext!)
• dns — See what websites users visit
• ip.addr == 192.168.1.100 — Traffic from specific IP

What to Look For

• Unencrypted credentials (HTTP, FTP, Telnet)
• DNS queries revealing browsing activity
• Suspicious connections to unknown IPs

Master packet analysis in our ethical hacking course!