# \#mtls

**URL:** https://hub.mender.io/tag/mtls/298.md

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## [Mender client rejects the server certificate of mTLS ambassador with Error: "certificate signed by unknown authority, openssl verify rc: 20"](https://hub.mender.io/t/mender-client-rejects-the-server-certificate-of-mtls-ambassador-with-error-certificate-signed-by-unknown-authority-openssl-verify-rc-20/5420)

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**Author:** [@shaomai](https://hub.mender.io/u/shaomai)\
**Replies:** 4\
**Last updated:** [April 26, 2024, 12:50am UTC](https://hub.mender.io/t/mender-client-rejects-the-server-certificate-of-mtls-ambassador-with-error-certificate-signed-by-unknown-authority-openssl-verify-rc-20/5420 "2024-04-26T00:50:44Z")

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Hello everyone, I am testing the mTLS feature with following use case: using https://hosted.mender.io as mender server hosting mTLS ambassador locally in virtual machine with ip address 192.168.3.30 and domain name my…

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## [Is Mutual TLS available in docker Demo Server?](https://hub.mender.io/t/is-mutual-tls-available-in-docker-demo-server/5396)

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**Author:** [@shaomai](https://hub.mender.io/u/shaomai)\
**Replies:** 4\
**Last updated:** [November 21, 2022, 8:12am UTC](https://hub.mender.io/t/is-mutual-tls-available-in-docker-demo-server/5396 "2022-11-21T08:12:07Z")

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Hi everyone, I am new in Mender and try to test the mender mTLS feature with local hosted server. I saw that there is a demo server available in “demo installation”. My question is, does the demo server support mTLS f…

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## [mTLS: Fails to authorize client automatically with Error "Unknown url.Error type: Host validation error"](https://hub.mender.io/t/mtls-fails-to-authorize-client-automatically-with-error-unknown-url-error-type-host-validation-error/5415)

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**Author:** [@shaomai](https://hub.mender.io/u/shaomai)\
**Replies:** 2\
**Last updated:** [November 21, 2022, 8:09am UTC](https://hub.mender.io/t/mtls-fails-to-authorize-client-automatically-with-error-unknown-url-error-type-host-validation-error/5415 "2022-11-21T08:09:04Z")

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Hi Everyone, I am testing the mTLS feature with hosted mender. According to the section “Mutual TLS authentication” I did the following configurations: Generating ca-private.key, ca-cert.pem, server-private.key, serve…