Protocols List -> Office 365

Office 365 ports range, how to block Office 365 in network?

  Protocol:
Office 365
Support: WFilter zh.4.1, WFilter en.4.1, WFilter Free 1.0, WFilter ROS 1.0, WFilter MINI 1.0
  Author: Bruce ModifyTime: 2021-07-28 05:03:22  
      Collaborate for free with online versions of Microsoft Word, PowerPoint, Excel, and OneNote. Save documents, spreadsheets, and presentations online, in OneDrive.  

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

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"Office 365" uses TCP protocol for communication.

TCP traffic analysis

Ports Range

Dynamic ports, no fixed port found.

TLS traffic analysis

TLS connections are found in Office 365's traffic.

TLS Host(s) being connected(regular expression): (officeapps\.live\.com|docs\.live\.net|office365\.com|office\.net)$.

How to block Office 365?

  • Block the listed http and tls domains to block Office 365.
  • Setup a content filter(ie: WFilter), which can block Office 365 via signature matching.

Office 365 v1.0(2021-07-28 05:03:22)

● First release.

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