# Logstash - client\_cert

**URL:** <https://discuss.elastic.co/t/logstash-client-cert/72759>\
**Category:** Logstash\
**Created:** [January 25, 2017, 10:58am UTC](https://discuss.elastic.co/t/logstash-client-cert/72759 "2017-01-25T10:58:25Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![avivc](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/avivc/32/16501_2.png) [@avivc](https://discuss.elastic.co/u/avivc)\
**Post date:** [January 25, 2017, 10:58am UTC](https://discuss.elastic.co/t/logstash-client-cert/72759/1 "2017-01-25T10:58:25Z")

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Hi,  
I'm new with Elastic  
I'm trying to add a client\_cert property to my configuration file (output of course)  
I'm nesting this property under elasticsearch curl bracket  
When trying to run Logstash machine, it pop an error:  
"logstash.outputs.elasticsearch - Unknown setting 'client\_cert' for elasticsearch  
So, probably this prop is unfamiliar with elasticsearch  
I'm using http\_polar as input. Should I use http as output?  
What am I doing wrong?  
Any idea? a comprehensive tutorial will be great !  
Tnx

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**Author:** ![magnusbaeck](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/magnusbaeck/32/44943_2.png) [@magnusbaeck](https://discuss.elastic.co/u/magnusbaeck)\
**Post date:** [January 27, 2017, 8:08am UTC](https://discuss.elastic.co/t/logstash-client-cert/72759/2 "2017-01-27T08:08:41Z")

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The elasticsearch output doesn't have a `client_cert` option. The plugin documentation for your version of Logstash lists what's available. Unfortunately I don't know exactly how a client cert setup would look like.

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<div class="post-metadata">

**Author:** ![avivc](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/avivc/32/16501_2.png) [@avivc](https://discuss.elastic.co/u/avivc)\
**Post date:** [January 28, 2017, 7:18pm UTC](https://discuss.elastic.co/t/logstash-client-cert/72759/3 "2017-01-28T19:18:21Z")

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Tnx @magnusbaeck!  
I saw this tutorial:  
[Ssl\_certificate\_validation not working](https://discuss.elastic.co/t/ssl-certificate-validation-not-working/46304/9)  
But, it didn't solved my problem  
I"ll keep looking. If you have any pointing direction, please let me know  
Best

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 25, 2017, 7:18pm UTC](https://discuss.elastic.co/t/logstash-client-cert/72759/4 "2017-02-25T19:18:29Z")

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