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指定コマンドしか実行できない鍵の設定

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webサーバのバックでsshさせて結果を出力すると便利。

grepしかできない公開鍵設定の例

myserver
from="11.22.33.44",command="/bin/grep ${SSH_ORIGINAL_COMMAND} /var/log/maillog.1 /var/log/maillog",no-pty,no-port-forwarding,no-X11-forwarding,no-agent-forwarding ssh-rsa 〜SSHの公開鍵〜
  • from=で接続元IPアドレスの制限
  • command=の${SSH_ORIGINAL_COMMAND}にはsshの引数が入る。

引数を指定する

$ ssh myserver -i ~/.ssh/myserver_grep_only/id_rsa \
  test@live.com

とすると、${SSH_ORIGINAL_COMMAND}にtest@live.comが入る。

確認方法

~/.ssh/authorized_keysにcommand="env"としておけば見れます。

tukiyo3
インフラ / web開発
http://tukiyo.github.io/
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