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Merge pull request #32471 from serewicz/patch-2

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install-kubeadm: use nc instead of telnet
This commit is contained in:
Kubernetes Prow Robot
2022-04-18 19:17:18 -07:00
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parent 6541860e63 5750981c00
commit 6e5451d666
1 changed files with 2 additions and 2 deletions
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content/en/docs/setup/production-environment/tools/kubeadm/install-kubeadm.md
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@@ -69,10 +69,10 @@ For more details please see the [Network Plugin Requirements](/docs/concepts/ext
## Check required ports ## Check required ports
These These
[required ports](/docs/reference/ports-and-protocols/) [required ports](/docs/reference/ports-and-protocols/)
need to be open in order for Kubernetes components to communicate with each other. You can use telnet to check if a port is open. For example: need to be open in order for Kubernetes components to communicate with each other. You can use tools like netcat to check if a port is open. For example:
```shell ```shell
telnet 127.0.0.1 6443 nc 127.0.0.1 6443
``` ```
The pod network plugin you use (see below) may also require certain ports to be The pod network plugin you use (see below) may also require certain ports to be