DC/OS Ports

Understanding configured ports for DC/OS deployment

This section describes each pre-configured port in your DC/OS deployment.

DC/OS components listen on multiple ports on each node. These ports must be available for installation to succeed.

• For DC/OS to install and function as intended, these ports must be accessible upon initial installation.
• The ports must be open between the indicated source and destination nodes, including over cluster zones.
• You must use appropriate network mechanisms to prevent unauthorized access to cluster nodes. Refer to the documentation on network security.

DC/OS allocates additional ports to services running on top of DC/OS. These ports are required to be available when services are installed.

All nodes

TCP

UDP

NOTE: UDP port 123 is open for communication with NTP.

Master

TCP

UDP

Agent

TCP