About invitations for new users
When you use built-in authentication for your GitHub Enterprise Server instance, each person creates a personal account from an invitation or by signing up. 默认情况下，未经身份验证时可以访问实例的人员可以在实例上创建新的个人帐户。
You can disable unauthenticated sign-ups and require an invitation to create a new user account on your instance. For more information, see "Disabling unauthenticated sign-ups."
Alternatively, you can configure external authentication for your GitHub Enterprise Server instance. If you use external authentication, you must invite people to use your instance through your authentication provider. For more information, see "About authentication for your enterprise."
Inviting people to create a user account
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从 GitHub Enterprise Server 上的管理帐户任意页面的右上角，单击 。
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如果你尚未在“站点管理员”页上，请在左上角单击“站点管理员”。
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在左侧边栏中，单击“邀请用户”。
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键入要创建的每个用户帐户的用户名和电子邮件地址，然后单击“生成密码重置链接”。
If you've configured email for notifications on your GitHub Enterprise Server instance, your instance will send the invitation to the provided email address. For more information, see "Configuring email for notifications."