cipherdyne.org | System and Network Security
www.cipherdyne.org
Home of open-source network security tools including fwknop and psad, along with documentation and research on single-packet authorization and port-knocking alternatives.
The site hosts detailed technical documentation and software for single-packet authorization, a stealthier alternative to port knocking. It suits sysadmins and security-conscious users looking to obscure services from scanners. The tools are mature and accompanied by thorough explanations of the underlying concepts.
Checked with Google Web Risk · 2 hours ago
- language
- EN
- here since
- July 2026