# I see this error in logstash-plain.log

**URL:** <https://discuss.elastic.co/t/i-see-this-error-in-logstash-plain-log/344082>\
**Category:** Elasticsearch\
**Created:** [September 28, 2023, 4:02pm UTC](https://discuss.elastic.co/t/i-see-this-error-in-logstash-plain-log/344082 "2023-09-28T16:02:32Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![Rios](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rios/32/95745_2.png) [@Rios](https://discuss.elastic.co/u/Rios)\
**Post date:** [September 28, 2023, 7:46pm UTC](https://discuss.elastic.co/t/i-see-this-error-in-logstash-plain-log/344082/6 "2023-09-28T19:46:56Z")

</div>

Have you set certificate params in output?

```auto
 elasticsearch {
    hosts => ["https://localhost:9200"]
    ssl_enabled => true
    ssl_verification_mode => "none"
    # ssl_certificate_authorities => ["/path/to/ca.crt"]
    # ssl_certificate => "/path/to/logstash.crt"
    # ssl_key => "/path/to/logstash.pkcs8.key"
}

```

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