Firewall recommendations for the IBM Storage Scale installation

The installation toolkit uses the following ports during IBM Storage Scale installation.

Table 1. Recommended port numbers that can be used for installation
Port Number	Protocol	Service Name	Components involved in communication
10080	TCP	Repository	Intra-cluster and installer server

You can get the list of protocol IP addresses by using the mmlscluster --ces command. Use the mmlscluster command to get the list of all internal IP addresses.

NTP is not necessary but time sync among nodes is highly recommended and it is required for protocol nodes.