How to configure Artifactory as an internal Jenkins update site

You can easily set-up a remote repository in Artifactory for the Jenkins Update Center.

In order to achieve this simply create a new Remote Repository and enter the following URL as the target: https://updates.jenkins.io/ as the following screenshot:
 

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Then in your Jenkins settings manage plugins:
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Click on the advanced tab, then update the site to Artifactory repository (E.G. http://localhost:8081/artifactory/jenkins-updates/update-center.json).
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This can also be done with a Generic Virtual or Local Repository, allowing you to manage your plugins.