{"description":"1. Reconnaissance portscan TCP $ nmap -T4 -p- --min-rate 1000 -v $IP PORT STATE SERVICE 22/tcp open ssh 25/tcp open smtp 80/tcp open http 110/tcp open pop3 119/tcp open nntp 4555/tcp open rsip UDP\uff08\u4f7f\u7528\u983b\u5ea6\u4e0a\u4f4d100\u30dd\u30fc\u30c8\u3092\u8abf\u67fb\uff09 $ nmap -sU -T4 --top-ports 100 -v $IP PORT STATE SERVICE 19/udp open|filtered chargen \u2026","blog_title":"\u65e5\u8a18","type":"rich","provider_name":"Hatena Blog","published":"2026-05-04 15:08:19","author_name":"kalax","width":"100%","height":"190","categories":[],"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Feverykalax.hateblo.jp%2Fentry%2F2026%2F05%2F04%2F150819\" title=\"HTB SolidState writeup - \u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","title":"HTB SolidState writeup","url":"https://everykalax.hateblo.jp/entry/2026/05/04/150819","author_url":"https://blog.hatena.ne.jp/kalax/","provider_url":"https://hatena.blog","version":"1.0","blog_url":"https://everykalax.hateblo.jp/"}