# Synthetic integration

**URL:** https://discuss.elastic.co/t/synthetic-integration/325754
**Category:** User Experience
**Created:** [February 16, 2023, 3:15pm UTC](https://discuss.elastic.co/t/synthetic-integration/325754 "2023-02-16T15:15:13Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![kumar\_v](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/kumar_v/32/117359_2.png) [@kumar\_v](https://discuss.elastic.co/u/kumar_v)
#### Post date: [February 16, 2023, 3:15pm UTC](https://discuss.elastic.co/t/synthetic-integration/325754/1 "2023-02-16T15:15:13Z")

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I have done synthetic integration with the elastic agent running in web servers. Set alerts about the ping response and tls certificates expiry dates. As the certs was approaching the expiry, updated the certs in the load balancers. Since then I am getting Error  
Get "[https://abcdef123.com](https://abcdef123.com)": x509: certificate signed by unknown authority. can somebody guide me how to fix it

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### Author: ![Alberto\_Delgado](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/alberto_delgado/32/98488_2.png) [@Alberto\_Delgado](https://discuss.elastic.co/u/Alberto_Delgado)
#### Post date: [February 22, 2023, 9:50am UTC](https://discuss.elastic.co/t/synthetic-integration/325754/3 "2023-02-22T09:50:16Z")

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Hi @kumar_v ,

Sorry for the delay in the response.

> x509: certificate signed by unknown authority

It seems that you are using self-signed certificates. Is that correct?

Let me know if this helps you: [X509: certificate signed by unknown authority](https://discuss.elastic.co/t/x509-certificate-signed-by-unknown-authority/156815)

Thanks,  
Alberto