kops/docs/development/ports.md

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Port usage

This document includes the port used by system components, so we can avoid port collisions.

Port Description
22 SSH
443 Kubernetes API
179 Calico
2380 etcd main peering
2381 etcd events peering
3998 dns gossip - protokube
3999 dns gossip - dns-controller
4001 etcd main client
4002 etcd events client
4789 VXLAN