Packet To Sniff

Network and web security basics

Ground truth for security work: what normal traffic looks like, and the response headers that protect users. Includes a hands-on Wireshark lab on your own traffic.

Beginner3 stepsFree, no account needed

Steps

  1. Step 1 · 3 min read

    TCP vs UDP: differences, handshakes and when each is used

    The two protocols behind almost every packet.

  2. Step 2 · Lab, 30 to 40 minutes

    Watch a TCP handshake in Wireshark

    See the handshake in your own traffic.

  3. Step 3 · 3 min read

    HTTP security headers explained: CSP, HSTS and more

    Cheap, strong browser protections.