I'm an engineer at an MDM vendor.
MDM push to devices via Apple Push Notification Service (APNs).
According to the document below, port 5223 needs to be opened in order for the device to communicate with APNs.
https://support.apple.com/ja-jp/guide/deployment/dep2de55389a/web
https://support.apple.com/ja-jp/102266
https://support.apple.com/ja-jp/HT210060
Does this port need to be open for both in and out?
Or should I only open out?
in : APNs → iOS Device
out: iOS Device → APNs
hi_tamura
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution
Last seen
User for