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# generala
adamant-kite-43734
09/10/2023, 7:53 PMThis message was deleted.
e
enough-window-20356
09/10/2023, 11:00 PMIt depends what else you are running on each cluster, but here’s the RKE port requirements
enough-window-20356
09/10/2023, 11:00 PMs
stocky-fall-82040
09/11/2023, 1:23 AMDo you know what ports are required for upstream and downstream communication? Upstream being a Rancher RKE1 HA cluster running on EC2 instances and downstream being a RKE1 cluster running on EC2 instances in AWS?
stocky-fall-82040
09/11/2023, 1:28 AMI think since is a Rancher Launched K8s cluster in using Amazon EC2, 443, 22 and 2376 are required. For the downstream cluster itself, this seems to explain it? https://ranchermanager.docs.rancher.com/getting-started/installation-and-upgrade/installation-requirements/port-requirements#ports-for-[…]node-pools
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