Mass IP port scanner that can scan the entire Internet in under 5 minutes, transmitting 10 million packets per second. It uses asynchronous transmission and allows arbitrary port and address ranges. Note: it uses its own ad hoc TCP/IP stack, so configurations are needed to avoid conflicts with the local TCP/IP stack.
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Suricata offers real-time intrusion detection, intrusion prevention, and network monitoring.
pfSense is a leading open source firewall and network security solution, providing advanced protection and connectivity options.
A free, open-source network protocol analyzer for capturing and displaying packet-level data.
Tcpdump is a command-line packet analyzer for capturing and analyzing network traffic.
A userland implementation of the Network Block Device protocol that enables remote block device access over network connections for distributed storage and virtualization use cases.
Tor Browser is a free and open-source software that allows users to browse the internet anonymously and privately.
A blog sharing packet capture files and malware samples for training and analysis, with archived posts and traffic analysis exercises.
NBD (Network Block Device) is a network protocol implementation that allows clients to access remote block devices over a network as if they were local storage.
Tcpreplay is a suite of Open Source utilities for editing and replaying captured network traffic.
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