TCP Ports used in Zoom

The following ports should be opened in the firewall for Zoom access:

PortRequired for desktop accessRequired for web accessDescription
8880YesNoZoom Server
8443YesNoWeb Administration & API access
8873YesYesPreview Server
8983NoNoZoom Curator Service
8874NoNoZoom NonStop Server to Server Data Transfer (HADR)
18880NoNoZoom NonStop Server to Server Control Messages (HADR)
7770YesNoZoom Client Proxy to Adobe plugins
9880Yes*No*SSL Zoom Server
9443Yes*No*SSL Web Administration & API access
8973Yes*Yes**SSL Preview Server
443Yes*Yes**SSL Preview Server
8974NoNo*SSL Zoom NonStop Server to Server Data Transfer (HADR)
8282NoYesArchive Hub
9292NoNo*SSL Archive Hub
5551YesYesEZ Downloader

To test any TCP port’s connectivity, check this article.

*Usually if SSL ports are enabled, their non-SSL counterpart ports can be disabled or blocked by the firewalls.

Desktop access includes Asset Browser, Repository Browser, Zoom plugins, Client Proxy, and EZ client installer. 

Web access includes Web Asset Browser and Web Client.

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