# Regarding encrypted communication between Elasticsearch servers

**URL:** <https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621>\
**Category:** Elasticsearch\
**Tags:** elastic-stack-security\
**Created:** [January 9, 2024, 5:02am UTC](https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621 "2024-01-09T05:02:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![YUUTA.INOUE-JPN](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yuuta.inoue-jpn/32/117963_2.png) [@YUUTA.INOUE-JPN](https://discuss.elastic.co/u/YUUTA.INOUE-JPN)\
**Post date:** [January 9, 2024, 5:02am UTC](https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621/1 "2024-01-09T05:02:48Z")

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Hello from Japan  
I have a question for you respected engineers.  
I am an inexperienced Japanese engineer with Elasticsearch.

I prepared three servers with Elasticsearch V8.11 installed and built an Elastic cluster.  
I have a question about his TLS construction between nodes in Elasticsearch.

I set up and configured the encryption of inter-node communication using TLS with reference to the site below.

▼Set up basic security for the Elastic Stack

> **[Set up basic security for the Elastic Stack | Elasticsearch Guide \[8.9\] |...](https://www.elastic.co/guide/en/elasticsearch/reference/8.9/security-basic-setup.html)**

Is there a way to check whether these Elasticsearch inter-node communications are encrypted correctly?

I would like help from all of you respected ELASTIC engineers.

I await your replies and information.  
Thank you

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [January 9, 2024, 8:14am UTC](https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621/2 "2024-01-09T08:14:05Z")

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If Elasticsearch is working with the settings described on that manual page then TLS is enabled correctly. The only other way I can think of would be to take and analyse a packet capture with something like Wireshark, verifying that you see TLS-encrypted data.

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**Author:** ![YUUTA.INOUE-JPN](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/yuuta.inoue-jpn/32/117963_2.png) [@YUUTA.INOUE-JPN](https://discuss.elastic.co/u/YUUTA.INOUE-JPN)\
**Post date:** [January 10, 2024, 1:39am UTC](https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621/3 "2024-01-10T01:39:35Z")

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DavidTurner san （In Japan, we add "san" to the names of people who are respect us. ）

Thank you for your reply.  
I would be very grateful for your advice.  
I'll try using WireShark if I have to.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 7, 2024, 1:40am UTC](https://discuss.elastic.co/t/regarding-encrypted-communication-between-elasticsearch-servers/350621/4 "2024-02-07T01:40:09Z")

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