Debian

I want something simple just to block app connection, manage dns and block malicious site and tracker

I was able to literally 1 hour ago.

I changed my DNS from Next DNS to CIRA Canadian Shield (Protected) to test it out.

Then I was only able to connect to the internet through Mulvad VPN.

Then I changed back to Next DNS and I observe the same behaviour.

How do I determine what is causing the problem?

How do I solve it?

Some apps like signal or steam close to the systemtray in Windows or KDE. When I'm in gnome, how do I view these programs or manage them?

I would prefer not to install any extensions.

AI models released under open source license without original training data or program are not seen as DFSG-compliant.

The GR is in his discussion step, and may be other vote options are presented.

The discussion can be read in the Debian-vote mailing list, and the resolution could impact other software (scanners, text2speach...) ^[See https://lists.debian.org/debian-vote/2025/04/msg00114.html].