Repositories
You can manage the settings available to repository administrators on your GitHub Enterprise Server appliance.
Preventing users from changing a repository's visibility
You can prevent members from changing the visibility of organization-owned repositories on your GitHub Enterprise Server appliance.
Preventing users from deleting organization repositories
You can prevent members from deleting or transferring repositories in organizations on your GitHub Enterprise Server appliance.
Archiving and unarchiving repositories
As a site admin you can archive or unarchive a repository in the Site admin dashboard.