Jenkins configuration and security issues

Question

This is the first time I am using Jenkins and I have gone through several online articles but couldn’t find satisfactory answers. We have .Net project, and we are using private

Answer 1

1) Go to Configure global Security and uncheck "Allow users to sign up" to prevent creation of new accounts.

2&3) Go to Configure System/Github Plugin Configuration section and uncheck "Manage hook" if you don't have admin access or don't want to manage hooks from Jenkins.