Protocols List -> IOS Update

IOS Update ports range, how to block IOS Update in network?

  Protocol:
IOS Update
Support: WFilter zh.4.1, WFilter en.4.1, WFilter Free 1.0, WFilter ROS 1.0
  Author: Bruce ModifyTime: 2019-12-10 21:21:46  
      This protocol can block apple IOS system auto update.  

This protocol is official supported. You can install it in "System Settings"->"Protocols" of WFilter.

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     User name:34.238.248.103
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"IOS Update" uses TCP protocol for communication.

TCP traffic analysis

Ports Range

Dynamic ports, no fixed port found.

HTTP traffic analysis

HTTP traffic is found in IOS Update's traffic.

Host(s) being connected(regular expression): (updates-http\.cdn-apple\.com|swcdn\.apple\.com)$.

TLS traffic analysis

TLS connections are found in IOS Update's traffic.

TLS Host(s) being connected(regular expression): ^gdmf\.apple\.com$.

How to block IOS Update?

  • Block the listed http and tls domains to block IOS Update.
  • Setup a content filter(ie: WFilter), which can block IOS Update via signature matching.

IOS Update v2.0(2019-12-10 21:21:46)

● Add swcdn.apple.com

IOS Update v1.0(2019-09-26 23:04:08)

● First release

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