Bouncer chooses the correct firewall zone for wireless connections

Bouncer is an application to help you choose the correct firewall zone for wireless connections. When you connect to a new network, Bouncer will open a window prompting you for what kind of network (e.g. home, public, work) it is. When you choose the network type, it is associated with that network and automatically used in the future.

NetworkManager and firewalld are required. If you don’t use those, you can’t use Bouncer. Fedora uses both by default. Other distributions may not.

Bouncer integrates with NetworkManager and firewalld using D-Bus. At a high level, it does the following:

• Listen for D-Bus signals from NetworkManager that a Wi-Fi device has changed to a new connection.
• If the connection has already been seen and configured, nothing happens. But if it hasn’t, we continue.
• Use D-Bus to prompt firewalld for a list of zones. This generally large list is pared down to a few basics.
• A window opens to explain what is happening, allowing the user to choose a firewall zone for the network.
• If the user clicks Exit, or closes the window, no changes are made. If the user chooses a zone, we continue.
• Use D-Bus to set the connection zone in NetworkManager. NetworkManager will automatically change the firewall zone to this value on subsequent connections to this network.

This is free and open source software.

Website: github.com/justinrdonnelly/bouncer
Support:
Developer: Justin Donnelly
License: Mozilla Public License 2.0

Bouncer is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.

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