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sshを公開鍵で認証するためにやること

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忘れてしまうので自分用のメモ

以下のコマンドを、クライアント側(sshの接続元)で実行します。

$ mkdir ~/.ssh && pushd ~/.ssh
$ ssh-keygen -t rsa
# パスフレーズ等必要なければ Enter 連打
$ ssh ユーザ名@IPアドレス "cat > ~/.ssh/authorized_keys; chmod 600 /root/.ssh/authorized_keys" < id_rsa.pub
# サーバ側に authorized_keys が存在する場合は「>」を「>>」にすること
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