|Purpose / Remarks
|SSH access to the edge director.
|CMD communication between head node and edge director, and to access BrightView.
|Source ports are random. Used if RSYNCDAEMON is set as provisioning transport.
|Edge director to head node.
|If using VPN.
|Head node will ping the edge director as part of status checks.
|If using Bright LDAPS server.
|Prior to 8.2, the head node will send
TCP SYN to the edge director for health checks.
Aside from the above, ports specific to your configured workload managers need to be opened as well. For example, when using Slurm, you need to open the following ports:
slurmctld from head node
slurmd in edge nodes
You may have to consult the respective manuals for the workload managers you configure for any additional ports that need to be opened. Take note that this only applies to 8.x and below. For 9.0 and above, the edge sites will have greater autonomy and only the first set of ports need to be opened.