# How to generate logstash-forwarder key and crt with TSL version 1.2

**URL:** <https://discuss.elastic.co/t/how-to-generate-logstash-forwarder-key-and-crt-with-tsl-version-1-2/59688>\
**Category:** Logstash\
**Created:** [September 2, 2016, 4:13pm UTC](https://discuss.elastic.co/t/how-to-generate-logstash-forwarder-key-and-crt-with-tsl-version-1-2/59688 "2016-09-02T16:13:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nagesh](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@nagesh](https://discuss.elastic.co/u/nagesh)\
**Post date:** [September 2, 2016, 4:13pm UTC](https://discuss.elastic.co/t/how-to-generate-logstash-forwarder-key-and-crt-with-tsl-version-1-2/59688/1 "2016-09-02T16:13:58Z")

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Currently our Logstash server and client are getting communicated with version TSL version 1.  
We need to generate new cert and key files using TSL version 1.2 using openssl.

Can some one suggest me how to pass TSL version 1.2 while generating cert and key files using openssl on RHEL vm?

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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:** [July 6, 2017, 4:40am UTC](https://discuss.elastic.co/t/how-to-generate-logstash-forwarder-key-and-crt-with-tsl-version-1-2/59688/2 "2017-07-06T04:40:11Z")

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Closed on July 6, 2017, 4:40am UTC