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wiresharkでsshdumpを、sudoパスワード設定有のリモートサーバーに対して行う

Last updated at Posted at 2021-08-05

結論のみ

Remote capture commandに次のコマンドを入力する

echo PASS | sudo -S tcpdump -U -i PORT -w - 'capture filter'

-S: SUDOパスワードを標準入力から読み込む
PASS: sudoパスワード
PORT: キャプチャしたいポート。ens37など
capture filter: キャプチャフィルタ。
  Remote capture filterの内容をコピペでよい。
  Remote capture commandを利用すると、Remote interface や Use sudo on the remote machine、
  No promiscus mode や Remote capture filter の入力値は無視されるため。
  

image.png

その他

コマンドラインで済ませたい人はこちら

echo SUDOPASS | sshpass -p SSHPASS ssh user@host "sudo -S tcpdump -U -n -w - -i PORT 'not port 22'" | sudo wireshark -k -i -

-k : すぐにキャプチャを始める
-i : キャプチャインタフェースを指定。-はstdinのこと。
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