linux hacking and programming homepage - home of pcapfix, netmate, list system and genmenu - providing the blog f00ls bl0g which handles expert hacking and security topics
Security's Demos Archive
The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis
Vulnerable By Design ~ VulnHub
二级域名收集|RapidDNS is a domain name information query system that supports querying information about websites, subdomains and the same ip website. RapidDNS supports A, AAAA, CNAME, CERTIFICATE and MX types.