This article describes how to set the DNS for WiFi connections on iOS:
http://techinch.com/blog/change-your-dns-settings-on-iphone-ipod-touch-and-ipad
The problem is that it specifies DNS for an individual network
connection, not for all connections.
Does anyone know a way to change iOS DNS for all WiFi networks in one
fell swoop?
iPhone 5, iOS 6, 64 GB
I have my ios devices DNS set via DHCP
You'd have to move to an MDM solution if you want over the air, push profile configuration setting to the devices
such as osx server Profie Manager. You may be able to do it with custom settings, I haven't tried it myself
The basic wifi setting in OSX server PM only allow settings for wifi SSID password etc
no DNS settings ip address etc. alternative MDM solutions may give you more options
Setting iOS DNS for All WiFi Networks
