Is this possible on any modern day phone or tablet? Selfhosting as made me very privacy-consciouss and am concerned about my iphone.

  • NeoNachtwaechter@lemmy.worldEnglish
    511·
    11 个月前

    Yes. Firewalls.

    With an iPhone, however, you are screwed. Apple won’t let you do what you are looking for.

    • 1024_Kibibytes@lemm.eeEnglish
      18·
      11 个月前

      This is a good question. On your home network, that’s pretty easy. On other networks, setting up a VPN that tunnels to your network seems like it should work.

      • ComradeMiao@lemmy.worldOPEnglish
        7·
        11 个月前

        Oh true! What an obvious answer. I could run it to my home adguard via tailscale. What about gps though…

        • bobs_monkey@lemm.eeEnglish
          10·
          11 个月前

          GPS is kind of a tossup since your cellular provider can just as easily triangulate your position with their towers, and there is no escaping that outside of putting your phone in a faraday cage.

          • ComradeMiao@lemmy.worldOPEnglish
            31·
            11 个月前

            Good point. Wish there was a way to have a device that could only access my selfhosted applications then totally block all other tracking. I did the vpn route just now. Thanks for that tip!

            • Petter1@lemm.eeEnglish
              3·
              11 个月前

              If route all data through VPN and drop the unwanted packages in the firewall at home, you achieve this. But apple is a bitch and ignore VPN (and even DNS) for own domains.

            • BearOfaTime@lemm.eeEnglish
              2·
              11 个月前

              Cell tracking is external to the phone. It’s done by the towers - they know signal strength, and by using known tables of that data, cell providers know pretty accurately where your phone is.

              To block this you’d need a device that lacks any cellular technology whatsoever. Wifi only.

              And that has the same issues, especially with companies like Comcast/Xfiniti using their cable modems to track all the devices around them, even if you don’t connect to them.

      • iii@mander.xyzEnglish
        8·
        11 个月前

        Take a look at “Rethink: DNS + firewall + VPN”. It is available through FDroid

        • morriscox@lemmy.worldEnglish
          1·
          11 个月前

          I want something that does all that and blocks trackers as well, which is what I use DDG for.

  • catloaf@lemm.eeEnglish
    11·
    11 个月前

    Guarantee? You’d have to open it up and disable the cellular radio. The OS can override any settings you make.

  • henfredemars@infosec.pubEnglish
    10·
    11 个月前

    Maybe I’m being stupid but a trivial way to ensure this is just don’t connect it to the Internet in any way. No SIM card. Cut it off from the Internet after setup, and only connect to a LAN with your chosen services all physically isolated from any internet machines.

  • thelittleblackbird@lemmy.worldEnglish
    61·
    11 个月前

    The answer is mTLS.

    But you will run into the key distribution problem. But if your number of devices is manageable, it could be the solution

  • mspencer712@programming.devEnglish
    3·
    11 个月前

    I have an iPhone and a gl.inet gl-e750 portable cell router, and my SIM card stays in the router. I don’t actually restrict my phone the way you’re talking about, but this gives me vpn to my home network without needing the vpn running on each client device. And if I wanted to block connections to big tech company services, I could do that.

  • TaviRider@reddthat.comEnglish
    3·
    11 个月前

    On iPhones and iPads there are several technologies available for monitoring and filtering network traffic. Filter network traffic from the Apple Deployment Guide has an overview of the technologies and their trade-offs.