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【AWS】EC2,RockyLinux8の初期ユーザ名

Last updated at Posted at 2021-09-29

AWS EC2で作成したRockyLinux8インスタンスへの初回SSH方法

インスタンス作成したはいいもののユーザ名が分からなかったのでメモ

rockyユーザが作成されているのでそれでSSHする

結論から書くと rocky ユーザでログインできる

$ ssh -i aws-ssh-key.pem rocky@54.xxx.xxx.xxx
The authenticity of host '54.xxx.xxx.xxx (54.xxx.xxx.xxx)' can't be established.
ECDSA key fingerprint is SHA256:
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '54.95.165.106' (ECDSA) to the list of known hosts.
Activate the web console with: systemctl enable --now cockpit.socket

Last login: Wed Sep 29 05:01:56 2021 from 35.213.38.0
[rocky@ip-192-168-2-106 ~]$ 

試行錯誤

最初、とりあえずec2-user とか root を試した

$ ssh -i imade-aws-key.pem 54.xxx.xxx.xxx
user名@54.xxx.xxx.xxx: Permission denied
  →permissiondenyされる

$ ssh -i imade-aws-key.pem ec2-user@54.xxx.xxx.xxx
ec2-user@54.xxx.xxx.xxx: Permission denied
  →permissiondenyされる

$ ssh -i imade-aws-key.pem root@54.xxx.xxx.xxx
Please login as the user "rocky" rather than the user "root".
  →固まった後、勝手にログアウトされる

rootでログインしようとしたときにrockyでログインしてね!っていうメッセージがでたのでわかった

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