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A comment on Cloudflare 1.1.1.1 iOS app. Parent comment

Re:Cloudflare 1.1.1.1 iOS app by Gaelan on Tuesday November 13, 2018 @03:02AM (#18439421)
It’s not a “real” VPN. I’m not sure exactly how much it does, but everything but the actual DNS queries happen on-device, with other network connections not touching CloudFlare servers.
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Re:Cloudflare 1.1.1.1 iOS app by dzek69 on Tuesday November 13, 2018 @03:08AM (#18439455)
It just acts as both server and client. The issues described still apply
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Re:Cloudflare 1.1.1.1 iOS app by elithrar on Tuesday November 13, 2018 @09:32AM (#18441178)
Not quite. There’s no VPN tunnel - no IPSec tunnel is being set up, even on loopback.

The reason the “VPN” icon appears is because VPN profiles are how you override iOS network settings on unmanaged devices: which can include just DNS. Any time a profile is ‘active’, the icon appears.

You could generate your own unsigned profile to do the same, if you were so inclined.

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