tcpdump
Tcpdump is a powerful command-line packet analyzer that captures and displays packets from a network interface. It allows users to filter, analyze, and troubleshoot network traffic. The tool is often used for network debugging, troubleshooting, and security testing. It is accompanied by libpcap, a portable C/C++ library for network traffic capture. The website provides documentation, tutorials, and resources for using tcpdump and libpcap, including man pages, tutorials, and papers written by various authors. The latest releases of tcpdump and libpcap are available for download, along with current development versions accessible through GitHub.
FEATURES
ALTERNATIVES
A suite for man in the middle attacks, featuring sniffing of live connections, content filtering, and protocol dissection.
An open source, self-hosted implementation of the Tailscale control server.
SentryPeer is a fraud detection tool that monitors and detects fraudulent activities on SIP servers, capturing IP addresses and phone numbers of suspicious activities and providing a notification system to service providers.
PFQ v6.2 is a functional framework for Linux optimized for efficient packet capture/transmission and in-kernel processing.
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.
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.