Hi! I'm working on a solution (iOS 18) that uses Network Extensions PacketTunnelProvider and Content Filter. Currently I'm trying to integrate it with another extension – DNSProxyProvider. My goal is to process dns queries and use resolved ips and names for additional routing inside of the packet tunnel. I'm running into a major issue: whenever both VPN and DNS proxy are active simultaneously, the device completely loses internet connectivity — no traffic goes through, and DNS resolution seems to stop working entirely. I know about the mdm supervision requirement to use DNSProxyProvider and that's covered as I work with a managed device and install a DNS proxy profile, here's how its .mobileconfig file looks like: The DNS proxy itself works fine when working by itself (without VPN being turned on), as I implemented it that it successfully processes DNS packets flows while collecting information about domains etc, and everything works perfectly. Problems begin when using VPN at the same time. I'm aware that tunnel settings include dns related options that can affect this, but I haven't had much luck with tweaking them. Here's how they look right now for reference: let settings: NEPacketTunnelNetworkSettings = NEPacketTunnelNetworkSettings(tunnelRemoteAddress: "240.0.0.1") // let dnsSettings = NEDNSSettings(servers: "8.8.8.8,8.8.4.4".components(separatedBy: ",")) // dnsSettings.matchDomains = [""] // settings.dnsSettings = dnsSettings settings.proxySettings = nil /* ipv4 settings */ let ipv4Settings = NEIPv4Settings(addresses: ["240.0.0.2"], subnetMasks: ["255.255.255.0"]) ipv4Settings.includedRoutes = [NEIPv4Route.default()] settings.ipv4Settings = ipv4Settings /* MTU */ settings.mtu = 1500 return settings I've tried excluding some dns related ip routes and dns settings shenanigans but nothing. I haven't found any information that might suggest that using both of these extensions at the same time doesn't work, on the contrary, this page in the official documentation about the expected use of packet tunnel provider the expected use of packet tunnel provider, as it talks about the fact that you should not use it for interception of all of DNS traffic, as the use of DNSPRoxyProvider (or dns settings) are built for that, which in my mind, suggests that there should be no problem with using them both and just splitting the dns traffic handling to the proxy. Will be thankful for any help!

Is there a way to restrict an end user from potentially editing a supervised device through Apple Configurator? It seems that Apple Configurator allows to make undesirable changes to a supervised device, like removing profiles, which would in turn be detrimental to the intended experience on the device, if a user would actually be able to perform such changes.

I have an MDM supervised device with an installed managed app, that activates a content-filter solution to filter traffic system-wide. Is it possible in any way for the user to install a third party content-filter app that would somehow overtake the control of content filtering from my app? I'm asking this because I've tested such a case with my another test content-filter solution and it takes control over content filtering from my content-filter – I think this is possible only because my device is in developer mode, but I'm not entirely sure, and I need a confirmation that it would not be possible to happen in an end used environment.