ONTAP must be configured to use an authentication server to provide multifactor authentication.

Centralized management of authentication settings increases the security of remote and nonlocal access methods. This control is particularly important protection against the insider threat. With robust centralized management, audit records for administrator account access to the organization's network devices can be more readily analyzed for trends and anomalies. The alternative method of defining administrator accounts on each device exposes the device configuration to remote access authentication attacks and system administrators with multiple authenticators for each network device. Satisfies: SRG-APP-000516-NDM-000336, SRG-APP-000149-NDM-000247, SRG-APP-000175-NDM-000262, SRG-APP-000177-NDM-000263

Use "security login show -authentication-method domain" to see users configured to authenticate with Active Directory. If ONTAP is not configured to use an authentication server, this is a finding. Note: The authentication method "domain" is one example. Other authentication methods such as "publickey" and "saml" are also acceptable.

Configure ONTAP to use Active Directory to authenticate users and prohibit the use of cached authenticators with "security login create -user-or-group-name <user or group name> -authentication-method domain -application ssh". Note: The authentication method "domain" is one example. Other authentication methods such as "publickey" and "saml" are also acceptable.