A PyQt6 desktop app to view, edit, apply, and save Ethernet adapter network configurations.

The UI lets you:

• Pick an Ethernet adapter
• See current IPv4 settings (IP, subnet mask, gateway)
• See current DNS settings (primary and secondary)
• Apply IPv4 + DNS changes
• Save per-adapter configurations to a JSON file and re-apply them later

• Windows: uses netsh / PowerShell networking cmdlets
• macOS: uses networksetup
• Linux: uses nmcli (NetworkManager)

NOTE: It's only tested on Windows while it's development phase, so if you find any issues, feel feel to report them and/or create a PR.

• Saved configs are stored as JSON and scoped by adapter name.
• Default config file location is ~/.config/lan_config.json.
• You can change the config location from the Settings dialog.

• Applying network configuration changes requires administrator/root privileges.
• On Linux, if nmcli is not available (or NetworkManager is not used), DNS/IP apply operations will not work.

• Python 3.10+ (recommended)
• PyQt6
• Windows: run the app normally, but applying changes will require elevation
• Linux: NetworkManager + nmcli (and elevation via pkexec or sudo)
• macOS: elevation is required to apply changes

Install Python dependencies:

pip install -r requirements.txt

From the project root:

python __main__.py

• Krish