Knock is a subdomain scan tool that helps you find subdomains of a given domain. It's a simple and easy-to-use tool that can be used to scan for subdomains, find vulnerabilities, and more.
FEATURES
ALTERNATIVES
LogRhythm NetMon is a network traffic analytics tool that provides real-time visibility, automated threat detection, and investigation capabilities for organizational networks.
Comprehensive guide for Iptables configuration and firewall rules.
MIDAS (Mac Intrusion Detection Analysis System) - archived and no longer supported.
Open source DDoS protection system with centralized policy for network operators.
PINNED

InfoSecHired
An AI-powered career platform that automates the creation of cybersecurity job application materials and provides company-specific insights for job seekers.

Mandos Brief Newsletter
A weekly newsletter providing cybersecurity leadership insights, industry updates, and strategic guidance for security professionals advancing to management positions.

CTIChef.com Detection Feeds
A tiered cyber threat intelligence service providing detection rules from public repositories with varying levels of analysis, processing, and guidance for security teams.

OSINTLeak
OSINTLeak is a tool for discovering and analyzing leaked sensitive information across various online sources to identify potential security risks.

ImmuniWeb® Discovery
ImmuniWeb Discovery is an attack surface management platform that continuously monitors an organization's external digital assets for security vulnerabilities, misconfigurations, and threats across domains, applications, cloud resources, and the dark web.

Checkmarx SCA
A software composition analysis tool that identifies vulnerabilities, malicious code, and license risks in open source dependencies throughout the software development lifecycle.

Orca Security
A cloud-native application protection platform that provides agentless security monitoring, vulnerability management, and compliance capabilities across multi-cloud environments.

DryRun
A GitHub application that performs automated security code reviews by analyzing contextual security aspects of code changes during pull requests.