Specify an idle session timeout value
Session Manager, a capability of AWS Systems Manager, allows you to specify the amount of time to allow a user to be inactive before the system ends a session. By default, sessions time out after 20 minutes of inactivity. You can modify this setting to specify that a session times out between 1 and 60 minutes of inactivity. Some professional computing security agencies recommend setting idle session timeouts to a maximum of 15 minutes.
To allow idle session timeout (console)
Open the AWS Systems Manager console at https://console.aws.amazon.com/systems-manager/
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In the navigation pane, choose Session Manager.
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Choose the Preferences tab, and then choose Edit.
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Specify the amount of time to allow a user to be inactive before a session ends in the minutes field under Idle session timeout.
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Choose Save.
