====== Apple ======
===== Services Firewall Access =====
[[https://support.apple.com/en-us/HT210060|This page]] lists services to allow in an enterprise environment.

===== Private Relay =====
The following are domains used for [[https://blog.cloudflare.com/icloud-private-relay/|Private Relay]] in which traffic gets tunneled to Apple and then to Cloudflare before egressing to the Web.
  * mask.icloud.com
  * mask-h2.icloud.com