Jenkins plugin site to ignore certificates Is there a way that I can tell Jenkins to ignore certificates for the update site. 

Background

I have an air-gapped Jenkins installation and there is currently proper way to make a proxy repo. Thus I have the following setup:
- I have modified the hosts file on the Jenkins host so that updates.jenkins-ci.org points to the host of the internal artifact repo
- There is a reverse-proxy in front of artifact repo which handles traffic for updates.jenkins-ci.org

However we are only allowed to use https thus there will be a name mismatch error as the certificate does not match the hostname of the artifact repo host

Remark: I don't want to generally disable the checks but only for the update site so the The Skip Certificate Check plugin is not the solution for me
Following your comment confirming you can use your own signed certificates internally.

One solution would be to replace the current certificate on your repo with a new one holding updates.jenkins-ci.org as an alias. This response on stackoverflow has the necessary info to get you going.

Meanwhile, the plugin higlighted above by @casey vega in the comments (which I didn't know) seems to be a solution much easier to manage.