Iptables Essentials is a comprehensive guide created by trimstray and contributors, providing common firewall rules and commands, useful Iptables configuration examples, kernel settings configuration, advanced configuration examples, and tools to help configure Iptables. It also includes manuals, how-tos, tutorials, and links to external resources.
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A high-performance DNS stub resolver for bulk lookups and reconnaissance (subdomain enumeration)
MIDAS (Mac Intrusion Detection Analysis System) - archived and no longer supported.
OpenSnitch is a GNU/Linux application firewall with interactive outbound connections filtering and system-wide domain blocking capabilities.
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