# Encryption at Rest

**URL:** <https://discuss.elastic.co/t/encryption-at-rest/111583>\
**Category:** Elasticsearch\
**Created:** [December 13, 2017, 2:36pm UTC](https://discuss.elastic.co/t/encryption-at-rest/111583 "2017-12-13T14:36:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sschins](https://avatars.discourse-cdn.com/v4/letter/s/43a26b/32.png) [@sschins](https://discuss.elastic.co/u/sschins)\
**Post date:** [December 13, 2017, 2:36pm UTC](https://discuss.elastic.co/t/encryption-at-rest/111583/1 "2017-12-13T14:36:49Z")

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Greetings All,

I'm using dm-crypt to encrypt data at rest. When I open the encrypted disk and mount it, my Elasticsearch cluster's health goes red. I'm not sure why.

Has anyone successfully encrypted data at rest?

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**Author:** ![TimV](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/timv/32/13162_2.png) [@TimV](https://discuss.elastic.co/u/TimV)\
**Post date:** [December 17, 2017, 11:04pm UTC](https://discuss.elastic.co/t/encryption-at-rest/111583/2 "2017-12-17T23:04:08Z")

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Elasticsearch can definitely run on top of dm-crypt.

> my Elasticsearch cluster's health goes red. I'm not sure why.

You should find out why. The Elasticsearch API and log files should give you enough information to work out why your cluster is red.

Start with: [Cluster Health | Elasticsearch Reference [6.0] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/6.0/cluster-health.html)

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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:** [January 14, 2018, 11:04pm UTC](https://discuss.elastic.co/t/encryption-at-rest/111583/3 "2018-01-14T23:04:41Z")

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