Network Security Tools
Network security tools and solutions for firewalls, intrusion detection, network monitoring, and perimeter security.
Browse 472 network security tools
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AWS Network Firewall provides fine-grained control over network traffic and enables easy deployment of firewall security.
Centrally Manage Cloud Firewall Rules with AWS Firewall Manager
BPF+ is a generalized packet filter framework that achieves both high-level expressiveness and good performance for network monitoring and intrusion detection applications.
Makes output from the tcpdump program easier to read and parse.
Automatically redirect users from www to non-www for a secure connection.
High-performance packet capture library with zero copy functionality.
High-speed packet capture library with user-level network socket.
Libnids is an implementation of an E-component of Network Intrusion Detection System that emulates the IP stack of Linux 2.0.x and offers IP defragmentation, TCP stream assembly, and TCP port scan detection.
Open-source set of libraries and drivers to accelerate network performance.
DenyHosts is a script to block SSH server attacks by automatically preventing attackers after failed login attempts.
Zeek Remote desktop fingerprinting script for fingerprinting Remote Desktop clients.
A multi-threaded intrusion detection system using Yara for network and stream IDS
A private network system utilizing WireGuard for enhanced networking capabilities.
Maltrail is a malicious traffic detection system utilizing blacklists and heuristic mechanisms.
A modified version of Cuckoo Sandbox with enhanced features and capabilities.
Snort 3 is the next generation Snort IPS with enhanced features and improved cross-platform support.
Romana automates cloud-native network isolation and distributed firewall policies for Kubernetes and OpenStack environments using topology-aware IPAM without overlays.
A KDE Plasma 4 widget that displays real-time traffic information for active network connections on Linux computers.
PFQ v6.2 is a functional framework for Linux optimized for efficient packet capture/transmission and in-kernel processing.
Django based web application for network traffic analysis with protocol handling capabilities.
NFStream is a multiplatform Python framework for network flow data analysis with a focus on speed and flexibility.
6Guard is an IPv6 attack detector sponsored by Google Summer of Code 2012 and supported by The Honeynet Project organization.
Network Security Specializations
472 tools across 7 specializations · 91 free, 381 commercial
Distributed Denial of Service Mitigation
Distributed Denial of Service (DDoS) protection services and mitigation tools for defending against distributed denial of service attacks and traffic flooding.
Intrusion Detection and Prevention Systems
Intrusion Detection and Prevention Systems (IDPS)for monitoring network traffic and blocking malicious activities.
Network Access Control
Network Access Control (NAC) solutions for controlling device access to networks, enforcing security policies, and managing network endpoints.
Network Security Tools FAQ
Common questions about Network Security tools, selection guides, pricing, and comparisons.
Traditional firewalls filter traffic based on ports, protocols, and IP addresses. Next-generation firewalls (NGFWs) add application awareness (identifying apps regardless of port), integrated intrusion prevention (IPS), SSL/TLS inspection, user identity awareness, and threat intelligence feeds. NGFWs can block specific application features while allowing the app itself.
NDR (Network Detection and Response) uses machine learning and behavioral analysis to detect threats in network traffic, including encrypted traffic analysis. Traditional IDS (Intrusion Detection Systems) rely primarily on signature matching against known attack patterns. NDR catches novel attacks and lateral movement that signature-based IDS would miss, and adds automated response capabilities.
Yes. Zero trust reduces reliance on network perimeter security, but network security tools remain essential for: detecting lateral movement, monitoring east-west traffic, protecting legacy systems that cannot support zero trust agents, DDoS mitigation, and providing visibility into encrypted traffic. Zero trust and network security are complementary, not replacements for each other.
