# Fatal error: \[config validation of server.uuid\]: must be a valid uuid

**URL:** <https://discuss.elastic.co/t/fatal-error-config-validation-of-server-uuid-must-be-a-valid-uuid/237866>\
**Category:** Kibana\
**Created:** [June 19, 2020, 8:14pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-uuid-must-be-a-valid-uuid/237866 "2020-06-19T20:14:15Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![pr0b3l](https://avatars.discourse-cdn.com/v4/letter/p/a6a055/32.png) [@pr0b3l](https://discuss.elastic.co/u/pr0b3l)\
**Post date:** [June 19, 2020, 8:14pm UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-uuid-must-be-a-valid-uuid/237866/1 "2020-06-19T20:14:15Z")

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Hello guys!  
I setup prod.server (7.6 version all stack): [Using Kibana in a production environment | Kibana Guide [7.6] | Elastic](https://www.elastic.co/guide/en/kibana/7.6/production.html#load-balancing-es)

> Settings unique across each Kibana instance:  
> server.uuid  
> server.name

server.uuid in Kibana.yml. What i need to set in this value?

When i didn't set this value, i have next:

> FATAL ERROR: Unable to write Kibana UUID file, please check the uuid.server configuration value in kibana.yml and ensure Kibana has sufficient permissions to read /write to the the uuid.server configuration value in kibana yml and ensure Kibana has sufficient permissions to read /write to this file. Error was: ENOENT

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<div class="post-metadata">

**Author:** ![pr0b3l](https://avatars.discourse-cdn.com/v4/letter/p/a6a055/32.png) [@pr0b3l](https://discuss.elastic.co/u/pr0b3l)\
**Post date:** [June 22, 2020, 8:11am UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-uuid-must-be-a-valid-uuid/237866/2 "2020-06-22T08:11:06Z")

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Problem solved.  
i changed config and add path.data, but not create a dir..  
Please close this issue

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<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 20, 2020, 8:11am UTC](https://discuss.elastic.co/t/fatal-error-config-validation-of-server-uuid-must-be-a-valid-uuid/237866/3 "2020-07-20T08:11:17Z")

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