This is the documentation for Cloudera Manager 5.1.1.
Documentation for other versions is available at Cloudera Documentation.

Configuring Ports for Cloudera Manager

Cloudera Manager, CDH components, managed services, and third-party components use the ports listed in the tables that follow. Before you deploy Cloudera Manager, CDH, and managed services, and third-party components make sure these ports are open on each system. If you are using a firewall, such as iptables, and cannot open all the listed ports, you will need to disable the firewall completely to ensure full functionality.

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