# TLS transport in single node cluster

**URL:** <https://discuss.elastic.co/t/tls-transport-in-single-node-cluster/308336>\
**Category:** Elasticsearch\
**Created:** [June 28, 2022, 9:13am UTC](https://discuss.elastic.co/t/tls-transport-in-single-node-cluster/308336 "2022-06-28T09:13:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kannengi](https://avatars.discourse-cdn.com/v4/letter/k/d07c76/32.png) [@kannengi](https://discuss.elastic.co/u/kannengi)\
**Post date:** [June 28, 2022, 9:13am UTC](https://discuss.elastic.co/t/tls-transport-in-single-node-cluster/308336/1 "2022-06-28T09:13:58Z")

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Hi,

(Elasticsearch Version 7.12)  
I'm securing my single-node ES cluster with TLS.

```auto
network.host: _site_
discovery.type: single-node

```

I've already successfully configured TLS over http for communication from outside with the cluster:

```auto
xpack.security.enabled: true
xpack.security.http.ssl.enabled: true
xpack.security.http.ssl.keystore.path: mycert_with_key.pfx
xpack.security.http.ssl.keystore.password: ***

```

My question is about the transport layer:  
As I understand, since there is only one node, there is no internode communication (port 9300) so no need to configure the xpack.security.transport.ssl.\* stuff, right?

Thanks for information!

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 26, 2022, 9:14am UTC](https://discuss.elastic.co/t/tls-transport-in-single-node-cluster/308336/2 "2022-07-26T09:14:01Z")

</div>

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