# Can't curl to opensearch server; wrong version number

**URL:** <https://forum.opensearch.org/t/cant-curl-to-opensearch-server-wrong-version-number/18462>\
**Category:** OpenSearch\
**Tags:** troubleshoot\
**Created:** [March 20, 2024, 4:05am UTC](https://forum.opensearch.org/t/cant-curl-to-opensearch-server-wrong-version-number/18462 "2024-03-20T04:05:51Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![pablo](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.opensearch.org/pablo/32/10363_2.png) [@pablo](https://forum.opensearch.org/u/pablo)\
**Post date:** [November 17, 2025, 10:16pm UTC](https://forum.opensearch.org/t/cant-curl-to-opensearch-server-wrong-version-number/18462/7 "2025-11-17T22:16:46Z")

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@lgrullonbb As per my comment in your other thread, you must have security plugin installed and HTTP SSL enabled.

> [@Apply configuration changes using securityadmin.sh](https://forum.opensearch.org/t/apply-configuration-changes-using-securityadmin-sh/8499/12):
>
> @lgrullonbb So how do you want to update the security configuration with securityadmin.sh script when that plugin is disabled? Security plugin must be enabled, with HTTP SSL set to true. plugins.security.ssl.http.enabled: true

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