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firewalld vs Bouncer: catalog facts
firewalld	Bouncer
Free Free and open source.	Free Free and open source under the MPL-2.0 licence.
Linux, Command line	Linux
Zones set trust levels per connection or interface Changes apply without restarting the service	Assigns a firewall zone per wireless connection Focused single-purpose tool
Linux only Zone concepts take some learning compared with plain rule lists	Linux only Small project with a limited user base
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: MPL-2.0
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.