For more information about troubleshooting your instance using a console connection, see the documentation: https://docs.cloud.oracle.com/en-us/iaas/Content/Compute/References/serialconsole.htm#four
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The authenticity of host 'ocid1.instance.oc1.ap-seoul-1.anuwgljr62k3muac7uyjm77xlivpluox7g5okia (<no hostip for proxy command>)' can't be established.
RSA key fingerprint is SHA256:MjI4J0FaNU.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added 'ocid1.instance.oc1.ap-seoul-1.anuwgljr62k3muac7u5inzuox7g5okia' (RSA) to the list of known hosts.