# 網路安全筆記 ## Week 2 - 課程工具 - [CDX](https://cdx.nchc.org.tw/) - DNS - dns resource record - nslookup - dig - WHOIS - dnsMAP - dnswalk - DNSenum - SMTP - SNMP - Web 資源蒐集 - httrack - web-archive - 線上資源蒐集 - 網路掃描 - Others - [Elasticsearch](https://zh.wikipedia.org/wiki/Elasticsearch) Keyword: `hosts` ``` shadow etc intitle:"index of" site:edu.tw ``` http://www.scu.edu.tw/ba/1.php/RK=0/RS=_L3U41PkXL25Sqc.dn5eBs0qPmo-  ``` ip:"" port:"" protocol:"" ``` ## Week 4 加密: - 對稱式加密 - 非對稱式加密 雜湊: - 特性: - 不可逆 - 抗碰撞 - 擴張性 - 常見: MD2, MD4, MD5, SHA-0, SHA-1, SHA-2 ## Week 5 ### 漏洞回報平台 - nvd ### 弱點利用程式 - exploit - payload ### 攻擊 - msfvenom [ref](https://kknews.cc/zh-tw/code/lmqo2xg.html)
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