How to modify dns on your apple IOS 11 for OpenDNS
This Knowledge Base article will show you how to set up your IOS device in order to use OpenDNS.
These instructions only work for Wi-Fi connections because iOS does not allow you to change the DNS servers when connected to cellular networks. Also, the changes are network specific, so you'll need to change the DNS servers every time you connect to a new wireless network. The good news is that iOS remembers the settings, so you won't have to repeat these changes whenever you reconnect to a known network.
Also, this works the same on all iOS devices.
Changing your IOS device DNS settings:
1.From the IOS device home screen, tap Settings.
2.Tap Wi-Fi, ensure it is enabled and your wireless network is connected.
3.Click the blue symbol next to your wireless network, as shown below.
4.The screen shown below appears. Tap the Configure DNS field.
5. Ensure Manual is selected and delete the current DNS servers by tapping on the symbol.
6.Tap Add Server and enter OpenDNS resolvers 188.8.131.52. Repeat this process to add another DNS server as follows 184.108.40.206, as shown below.
7.Tap Save to exit the menu.
That's it! You've updated your IOS device DNS servers!