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Do you need to have a firewall on a linux desktop?
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this post was submitted on 06 Oct 2023
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Yes, and hopefully you will have one preinstalled, blocking all incoming connections.
An outbound firewall like Opensnitch or Portmaster is also nice. But here I would say often you dont need one. Balena Etcher was the only App loading Ads, at all. Firefox and Thunderbird can be hardened. The rest is okay and doesnt phone home, Flatpak permissions ard also great.
Balena Etcher shouldn't be loading ads. Where did you install it from?
Official website. They just advertise their own products which I consider Adware