From b34d8d9f300d5f456b95ca831387190aa18b840d Mon Sep 17 00:00:00 2001 From: cluse Date: Mon, 16 Nov 2020 18:21:28 -0700 Subject: [PATCH] Say only one domain name can be used for DHCP option sets with Windows --- .../rke-clusters/windows-clusters/_index.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/windows-clusters/_index.md b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/windows-clusters/_index.md index 62b280d5f4c..5ff394c2ed2 100644 --- a/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/windows-clusters/_index.md +++ b/content/rancher/v2.x/en/cluster-provisioning/rke-clusters/windows-clusters/_index.md @@ -68,6 +68,9 @@ For **Host Gateway (L2bridge)** networking, it's best to use the same Layer 2 ne For **VXLAN (Overlay)** networking, the [KB4489899](https://support.microsoft.com/en-us/help/4489899) hotfix must be installed. Most cloud-hosted VMs already have this hotfix. +If you are configuring DHCP options sets for an AWS virtual private cloud, note that in the `domain-name` option field, only one domain name can be specified. According to the DHCP options [documentation:](https://docs.aws.amazon.com/vpc/latest/userguide/VPC_DHCP_Options.html) + +> Some Linux operating systems accept multiple domain names separated by spaces. However, other Linux operating systems and Windows treat the value as a single domain, which results in unexpected behavior. If your DHCP options set is associated with a VPC that has instances with multiple operating systems, specify only one domain name. ### Architecture Requirements The Kubernetes cluster management nodes (`etcd` and `controlplane`) must be run on Linux nodes.