Machine ports configuration
Machines that are used as Redise Pack (RP) nodes should ideally have all ports open between them for internal cluster communication purposes. If for some reason you cannot leave all ports open between the machines, see below the list of ports and port ranges that are used by RP.
In addition, ensure that the ICMP protocol is enabled for communications between the nodes.
By default, the cluster assigns ports in the range of 10,000 – 19,999 to database endpoints. If you assign a specific port for a database when creating it, even outside of this range, the cluster will only verify that the assigned port is not already in use.
List of ports and port ranges used by Redise Pack
|3333, 3334, 3335, 3336, 3337, 36379, 36380||Internal cluster usage|
|53, 5353||Used for accessing DNS/mDNS functionality in the cluster|
|8443||Used for secure (https) access to the management web UI|
|8080, 9443||Used to expose the REST API for cluster management|
|10000-19999||Used for exposing databases externally|
|20000-29999||Used for internal communications with database shards|