A 403 error occurs when a server won't allow you to access a webpage, but there are a few simple tricks to fix the problem.

Jenkins tokens and Webhook secrets. The Webhook secret used by GitHub is created as an API token in Jenkins for a user who has rights to invoke the build job.

This quick example will demonstrate how to implement a remote Jenkins build trigger. With the remote Jenkins build URL, a developer can call jobs from scripts, the CURL command and even Java code.