If you disallow publication of GitHub Pages sites, any sites that are already published will remain published. You can manually unpublish the site. For more information, see "Unpublishing a GitHub Pages site."
In the top right corner of GitHub Enterprise Server, click your profile photo, then click Your organizations.
Next to the organization, click Settings.
In the "Access" section of the sidebar, click Member privileges.
Under "Pages creation", select or deselect Allow members to publish sites.
- Click Save.