Production-grade Linux MAC spoofing & restoration CLI
MAC Address Changer (V1-MAX)
MacChanger-V1-MAX is a production-focused Linux networking utility and privacy tool engineered in Python. It provides reliable command-line workflows to discover network interfaces via /sys/class/net, inspect active MAC addresses, generate standards-compliant locally administered unicast addresses, and apply custom or randomized hardware addresses. Built for security engineers and lab practitioners, it features one-time automatic hardware MAC backups before mutation, deterministic safe restoration routines, primary iproute2 execution with ifconfig fallbacks, and explicit exit codes for automation pipelines.
Problem
Network privacy testing and hardware address spoofing scripts often lack safe recovery mechanisms, resulting in lost original MAC addresses, network downtime, and unhandled system permission errors.
Solution
A robust CLI with automated original MAC persistence, strict hex formatting checks, interactive confirmation prompts, non-interactive script flags, and complete rollback safety.
Outcome
A dependable network security utility demonstrating Linux network stack control, subprocess safety, persistent hardware state management, and full Pytest test coverage.
Standout Features
- Dynamic interface discovery using Linux /sys/class/net with fallback introspection
- Strict MAC address validation with locally administered unicast bit generation
- Automatic original MAC backup prior to modification and one-command restoration
- Dual execution backend: modern iproute2 with ifconfig compatibility fallback
Stack & Signals
- Python 3.10+
- Linux / sysfs
- iproute2 / ifconfig
- Pytest
- GitHub Actions
Canonical destination