使用 Systems Manager 设置即时访问
使用 Systems Manager 设置即时节点访问涉及多个步骤。首先，选择要设置即时节点访问的目标。目标包括 Amazon Organizations 组织单元（OU）和 Amazon Web Services 区域。默认情况下，会选择您在设置统一 Systems Manager 控制台时选择的相同目标进行即时节点访问。您可以选择为所有相同的目标设置即时节点访问权限，或为设置统一的 Systems Manager 控制台时指定的目标子集设置即时节点访问权限。不支持添加在设置统一的 Systems Manager 控制台时未选择的新目标。
接下来，您需创建审批策略，以确定节点连接何时需要手动审批以及何时会自动获得批准。审批策略由组织中的每个账户管理。您还可以共享来自委托管理员账户的策略，以明确拒绝自动审批与特定节点的连接。
注意
设置即时节点访问不会影响您已为Session Manager配置的现有 IAM 策略或首选项。您必须从 IAM 策略中移除 StartSession 等Session Manager操作的权限，确保当用户尝试连接到您的节点时，仅使用即时节点访问。设置即时节点访问后，建议在移除Session Manager权限之前，使用一个用户和节点子集测试您的审批策略，以验证策略是否按预期运行。
以下 IAM 策略概述了管理和允许用户使用 Systems Manager 向节点创建即时节点访问请求所需的权限。确认您具有在 Systems Manager 中使用即时节点访问所需的权限后，便可以继续设置过程。将每个示例资源占位符替换为您自己的信息。
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注意
要限制对创建、更新或删除审批策略的 API 操作的访问权限，请使用 AutoApprovalPolicy 和 ManualApprovalPolicy 文档类型的 ssm:DocumentType 条件键。StartAccessRequest 和 GetAccessToken API 操作不支持以下全局上下文键：
-
aws:ViaAwsService
-
aws:MultiFactorAuthPresent
-
aws:SourceVpce
-
aws:UserAgent
有关 Systems Manager 的条件上下文键的更多信息，请参阅《Service Authorization Reference》中的 Condition keys for Amazon Systems Manager。
以下过程介绍如何完成即时节点访问的第一个设置步骤。
设置即时节点访问
-
登录贵组织的 Systems Manager 委派管理员账户。
访问 https://console.aws.amazon.com/systems-manager/
，打开 Amazon Systems Manager 控制台。 -
在导航窗格中选择管理节点访问。
-
选择启用即时节点访问。
-
选择您想要启用即时节点访问的区域。默认情况下，系统会为即时节点访问选择您在设置统一 Systems Manager 控制台时选择的相同区域。不支持选择在设置统一 Systems Manager 控制台时未选择的新区域。
-
选择启用即时节点访问。
启用该功能后，可在 30 天内免费使用即时节点访问。30 天试用期后，需付费才能使用即时节点访问。有关更多信息，请参阅 Amazon Systems Manager定价