Use DNS to block OTA updates for iOS 7

You can use DNS to block OTA (Over The Air) updates for iOS 7. For those of you who want to prevent any client from updating to iOS 7 OTA (as long as they aren’t taking them home), block the following URL with your web filter:

http://mesu.apple.com/assets/com_apple_MobileAsset_SoftwareUpdate/com_apple_MobileAsset_SoftwareUpda…

This will prevent the iPads from checking for software updates.
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