# Certificate Authorities Explained

DevFeed: [Certificate Authorities Explained](<https://devfeed.tech/articles/certificate-authorities-explained-29863.md>)

Original publisher: [Read original article](<https://goteleport.com/blog/ssh-certificate-authorities-explained/>)

Author: info@goteleport.com (Katie Carrel)

Published: 2019-10-14T00:00:00Z

Content type: tutorial

Language: en

Sources: [Teleport](<https://devfeed.tech/sources/teleport.md>)

Topics: [certificates](<https://devfeed.tech/topics/certificates.md>), [Security](<https://devfeed.tech/topics/security.md>), [ssh](<https://devfeed.tech/topics/ssh.md>), [trust](<https://devfeed.tech/topics/trust.md>), [Web](<https://devfeed.tech/topics/web.md>)

Tags: [article](<https://devfeed.tech/tags/article.md>), [certificates](<https://devfeed.tech/tags/certificates.md>), [security](<https://devfeed.tech/tags/security.md>), [ssh](<https://devfeed.tech/tags/ssh.md>), [trust](<https://devfeed.tech/tags/trust.md>), [web](<https://devfeed.tech/tags/web.md>)

## AI overview

This tutorial explains what certificate authorities are, how they establish trust by issuing and validating certificates, and how certificates secure web traffic and SSH access.

## Source excerpt

In this article, we explain what a certificate authority is and what role it plays in securing communication between a user and a resource.