# Cross-cluster

**URL:** https://discuss.elastic.co/t/cross-cluster/332253
**Category:** Elasticsearch
**Created:** [May 2, 2023, 10:21am UTC](https://discuss.elastic.co/t/cross-cluster/332253 "2023-05-02T10:21:13Z")
**Posts on this page:** 3
**Page:** 1

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### Author: ![elastic\_user4](https://avatars.discourse-cdn.com/v4/letter/e/977dab/32.png) [@elastic\_user4](https://discuss.elastic.co/u/elastic_user4)
#### Post date: [May 2, 2023, 10:21am UTC](https://discuss.elastic.co/t/cross-cluster/332253/1 "2023-05-02T10:21:13Z")

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I tried to do the first step in this documentation([Tutorial: Set up cross-cluster replication | Elasticsearch Guide [8.7] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/8.7/ccr-getting-started-tutorial.html#_connect_to_a_remote_cluster)) and I couldn't connect one cluster with another i have port 9300 open on both clusters.

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### Author: ![carly.richmond](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/carly.richmond/32/104935_2.png) [@carly.richmond](https://discuss.elastic.co/u/carly.richmond)
#### Post date: [May 3, 2023, 11:48am UTC](https://discuss.elastic.co/t/cross-cluster/332253/2 "2023-05-03T11:48:16Z")

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Hi,

Are you getting a particular error when you try to connect? Can you double check the host and port is correct and accessible?

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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: [May 31, 2023, 11:48am UTC](https://discuss.elastic.co/t/cross-cluster/332253/3 "2023-05-31T11:48:32Z")

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