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Local dns rewrite problems on android (lemmy.world)

submitted 1 week ago by marci@lemmy.world to c/selfhosted@lemmy.world

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I have some services set up which i make available with tailscale and a domain name outside my lan. Inside my home network i set up adguard dns rewrites to use the same domain for devices which are not on my tailnet. I disabled dns rebind protection in my fritzbox for these domains.

Now my problem: I don't leave my phone connected to tailscale all of the time because of high battery drain. Inside of my wifi the phone should still be able to access my services using the domain, but it is only able some of the time. My work laptop (not on my tailnet) is able to access the services.

Is the dns cached somehow in android? Is the private dns setting of android overwriting the dns i configured in my router? Where else could the problem lie? Any hints are appreciated :)

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[–] marci@lemmy.world 1 points 2 days ago

I configured Adguard now as the ipv6 dns server in the fritzbox as well. For now it seems to work, under settings > network & internet > network details for my home network it shows the right dns addresses now. Thanks!