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nmapコマンド

Posted at

機能

指定したホストに対してポートスキャンを行う

使用する機会

・空いているポートをリモートで確認する ・クラッカーが攻撃前の調査として行う

書式

nmap [オプション] {ターゲット}

使い方

```:nmapでポートスキャン

nmap www.example.com

PORT STATE SERVICE
22/tcp open ssh
25/tcp closed smtp
80/tcp open http
110/tcp closed pop3
143/tcp closed imap
993/tcp closed imaps
995/tcp closed pop3s

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