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[Backport 3.2] Change plugins.security.kerberos.krb5_filepath to a relative path #11036

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Sep 25, 2025
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[Backport 3.2] Change plugins.security.kerberos.krb5_filepath to a relative path #11036

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4 changes: 2 additions & 2 deletions _security/authentication-backends/kerberos.md
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Expand Up @@ -16,7 +16,7 @@ In order to use Kerberos authentication, you must set the following settings in
In `opensearch.yml`, define the following settings:

```yml
plugins.security.kerberos.krb5_filepath: '/etc/krb5.conf'
plugins.security.kerberos.krb5_filepath: 'krb5.conf'
plugins.security.kerberos.acceptor_keytab_filepath: 'opensearch_keytab.tab'
plugins.security.kerberos.acceptor_principal: 'HTTP/localhost'
```
Expand All @@ -27,7 +27,7 @@ Name | Description
`acceptor_keytab_filepath` | The path to the `keytab` file, which contains the principal that the Security plugin uses to issue requests through Kerberos.
`acceptor_principal` | The principal that the Security plugin uses to issue requests through Kerberos. This value must be present in the `keytab` file.

Due to security restrictions, the `keytab` file must be placed in `config` or a subdirectory, and the path in `opensearch.yml` must be relative, not absolute.
Because of security restrictions, the `keytab` and `krb5.conf` files must be placed in the `config` directory or its subdirectory, and their paths in `opensearch.yml` must be relative, not absolute.
{: .note }

## Cluster security configuration
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