this post was submitted on 11 Nov 2024
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Is this possible on any modern day phone or tablet? Selfhosting as made me very privacy-consciouss and am concerned about my iphone.

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[–] [email protected] 7 points 3 days ago (2 children)

VPN would still work for iPhone I imagine. Small whitelist of DNS would do 90%+ of the job.

[–] [email protected] 36 points 3 days ago (1 children)

Apple bypasses VPNs for certain system services, or at least has in the past

[–] [email protected] 21 points 3 days ago (1 children)

Also falls back to hardcoded IPs when DNS fails

[–] [email protected] 6 points 3 days ago* (last edited 3 days ago)

I killed off ads in the News app by blocking doh.apple.com. I find it kind of funny that it looks up its DoH server IP using the existing DNS server and that simply returning NXDOMAIN cuts it off.

Not sure if they use it for much more than that though (doesn’t seem like it).

[–] [email protected] 7 points 3 days ago* (last edited 3 days ago) (1 children)

True, somewhat... but on the iPhone, many functions that seem like basic things are tied to Apple's services and cannot easily replaced by selfhosted services. This phone would not work properly anymore.

[–] [email protected] 1 points 3 days ago (2 children)

other than texting and calling idk what else I would use that isnt selfhosted :)

[–] [email protected] 6 points 3 days ago (1 children)

In the other reply, you said something about GPS.

Well, location services aren't really GPS anymore.

The phone looks at all of it's radio environment (cell and WiFi and whatnot) and from that it calculates it's location. GPS may help a little, too, but it's not important.

It needs Apple's own databases to do that: collections of all antennas in the world, and their known locations.

[–] zingo 3 points 3 days ago* (last edited 3 days ago) (1 children)

Hmmm. That could be what's slowing down the GPS locking on my old android phone I use for my fitness app.

No SIM card or WiFi access. Takes a good 20 min just to get a GPS lock.

That means it fucks up my distance monitoring and time intervals, if I don't have patience to wait, which I honesty don't!

The app is basically a fancy timer at this point.

;)

[–] [email protected] 4 points 3 days ago

In that case, your phone needs to "see" at least 4 satellites at the same time (more is even better) to get the first GPS lock, and that's probably why you need to wait for so long.

It could help to walk to a spot with no buildings, trees etc.

Once there was an app called "GPS essentials" to help with that.

[–] [email protected] 2 points 3 days ago

Texting uses http over the data channel for MMS.