The Python Network Toolkit is an educational collection of networking utilities — packet capture, raw TCP/UDP, a TCP proxy, SSH client/server/reverse-shell, and related tools. It exists to demonstrate how the wire works and to serve as a portfolio reference. Several tools are inherently dual-use: the same packet sniffer that teaches you TCP also captures traffic, and the SSH tools open real sessions.

Use these tools only on systems and networks that you own or have explicit, written permission to test. Packet capture, scanning, and remote-session tools can be illegal to run against infrastructure you don't control — in many jurisdictions, regardless of intent.

• ✅ Your own machines, home lab, or a network you administer.
• ✅ An engagement where you have documented authorization (pentest, CTF, coursework).
• ❌ Any third-party system, network, or service without permission.

You are responsible for how you use this software. The authors provide it for learning and authorized testing, and accept no liability for misuse (see the LICENSE).

Everything here is a diagnostic or learning utility. The project deliberately does not ship capabilities whose only purpose is attack, evasion, or covert persistence with no legitimate diagnostic value. New tools added to the suite are held to the same line.

If you find a security issue in this toolkit itself (not a general networking question), please report it privately rather than opening a public issue:

• Use GitHub's private vulnerability reporting, or
• email brett@brett-buskirk.dev.

Please include steps to reproduce and the affected tool. We'll acknowledge and respond as promptly as we reasonably can.