# Elasticsearch cross cluster replication, authorization and authentication
**URL:** https://discuss.elastic.co/t/elasticsearch-cross-cluster-replication-authorization-and-authentication/242816
**Category:** Elasticsearch
**Tags:** elastic-stack-security, ccr-cross-cluster-replication
**Created:** [July 27, 2020, 11:29pm UTC](https://discuss.elastic.co/t/elasticsearch-cross-cluster-replication-authorization-and-authentication/242816 "2020-07-27T23:29:31Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lnitin12](https://discuss.elastic.co/u/lnitin12)
#### Post date: [July 27, 2020, 11:29pm UTC](https://discuss.elastic.co/t/elasticsearch-cross-cluster-replication-authorization-and-authentication/242816/1 "2020-07-27T23:29:31Z")
To setup cross cluster replication in elasticsearch, what is the authorization and authentication mechanism in between Local and Remote cluster ..? How does local cluster recognize remote cluster.?
@elasticsearch
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [July 29, 2020, 5:49am UTC](https://discuss.elastic.co/t/elasticsearch-cross-cluster-replication-authorization-and-authentication/242816/2 "2020-07-29T05:49:52Z")
That's explained in [https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-getting-started.html#ccr-getting-started-before-you-begin](https://www.elastic.co/guide/en/elasticsearch/reference/current/ccr-getting-started.html#ccr-getting-started-before-you-begin)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 26, 2020, 5:49am UTC](https://discuss.elastic.co/t/elasticsearch-cross-cluster-replication-authorization-and-authentication/242816/3 "2020-08-26T05:49:53Z")
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