PORT 4369: Erlang makes use of a Port Mapper Daemon (epmd) for resolution of node names in a cluster. Nodes must be able to reach each other and the port mapper daemon for clustering to work.
PORT 35197
set by inet_dist_listen_min/max Firewalls must permit traffic in this range to pass between clustered nodes
RabbitMQ Management console:
- PORT 15672 for RabbitMQ version 3.x
- PORT 55672 for RabbitMQ pre 3.x
Make sure that the rabbitmq_management plugin is enabled, otherwise you won’t be able to access management console on those ports.
PORT 5672 RabbitMQ main port.
For a cluster of nodes, they must be open to each other on 35197, 4369 and 5672.
For any servers that want to use the message queue, only 5672 is required.