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How to log into a captive portal (public WiFi) when you have a system wide private DNS? (self.privacy)
submitted 3 months ago by to c/privacy@lemmy.ml
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Hi all

I'm using DNS over TLS with Quad9 as my DNS provider.
This works great in most circumstances, but when I want to connect to a public wifi, like at school or in the library, it's not possible to open the Captive portal page, and I can't use the network.

Is there some way to easily make this work? Maybe exclude these networks from private DNS?
Or a way to easily switch between network configurations?

I'm using systemd resolved, but configured with a private dns via my NixOs configuration.

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[–] 4 points 3 months ago (3 children)

Disable your dns over tls so you can register your MAC address and complete the portal requirements. Once registered, turn your dns back on.

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  • [–] [S] 3 points 3 months ago (2 children)

    This is the most straightforward way if I was not on NixOs.

    If I want to change the DNS settings in my nix config, I need internet connection (unless it's possible to rebuild while offline?)

    I was trying to bypass this by just changing the DNS server for that specific network connection, but I didn't get it to work. Because it has to use the DNS of the captive portal to be able to load the page

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