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Firewall & Netzwerksicherheit

Ersetzt: Cisco, proprietary

Open-Source-Firewall- und Netzwerksicherheitslösungen für Unternehmen und Privatanwender. Leistungsstarke Alternativen zu Cisco und proprietären Lösungen.

🛡️ 23 Open-Source-Tools

pfSense CE

Leistungsstarke Open-Source-Firewall und Router-Distribution

5.0k
Cisco ASA proprietary firewalls
Apache-2.0 ●●● Fortgeschritten
Mär 2026

OPNsense

Moderne FreeBSD-basierte Firewall mit wöchentlichen Updates

3.4k
Cisco ASA proprietary firewalls
BSD-2-Clause ●●● Fortgeschritten
Mai 2026

CrowdSec

Kollaborative Open-Source-Sicherheit durch Crowd-Intelligence

9.2k
Cisco ASA proprietary firewalls
MIT ●● Mittel
Mai 2026

Fail2ban

Automatischer Schutz vor Brute-Force-Angriffen

12.0k
Cisco ASA proprietary firewalls
GPL-2.0 ● Einfach
Mai 2026

UFW

Unkomplizierte Firewall für einfache Linux-Serversicherheit

900
Cisco ASA proprietary firewalls
GPL-3.0 ● Einfach
Dez 2012

Snort

Weltweit führendes Open-Source-Intrusion-Detection-System

6.2k
Cisco ASA proprietary firewalls
GPL-2.0 ●●● Fortgeschritten
Apr 2026

Suricata

Hochleistungs-IDS/IPS mit Multi-Threading-Architektur

5.1k
Cisco ASA proprietary firewalls
GPL-2.0 ●●● Fortgeschritten
Mai 2026

OpenSnitch

Anwendungsfirewall für Linux-Desktops

11.0k
Cisco ASA proprietary firewalls
GPL-3.0 ●● Mittel
Apr 2026

Super

SPR: Open Source, secure, user friendly and fast wifi routers for your home.

502
Cisco proprietary
BSD-3-Clause ●● Mittel
Mai 2026

Safeline

SafeLine is a self-hosted WAF(Web Application Firewall) / reverse proxy to protect your web apps from…

21.2k
Cisco proprietary
GPL-3.0 ●● Mittel
Mai 2026

Pentagi

Fully autonomous AI Agents system capable of performing complex penetration testing tasks

16.6k
Cisco proprietary
MIT ●●● Fortgeschritten
Mai 2026

Portmaster

Love Freedom - ❌ Block Mass Surveillance

12.6k
Cisco proprietary
GPL-3.0 ●● Mittel
Mai 2026

Simplewall

Simple tool to configure Windows Filtering Platform (WFP) which can configure network activity on your…

8.4k
Cisco proprietary
GPL-3.0 ● Einfach
Apr 2026

Whoami Project

Whoami provides enhanced privacy, anonymity for Debian and Arch based linux distributions

2.3k
Cisco proprietary
GPL-3.0 ●● Mittel
Okt 2025

Privacy Settings

Guide to privacy settings for most major software and services.

1.9k
Cisco proprietary
MIT ●● Mittel
Mai 2026

Core

A privacy-preserving home security camera that uses advanced end-to-end encryption.

1.1k
Cisco proprietary
GPL-3.0 ●●● Fortgeschritten
Mai 2026

Wholeaked

a file-sharing tool that allows you to find the responsible person in case of a leakage

1.1k
Cisco proprietary
BSD-3-Clause ●● Mittel
Jan 2022

Clearcam

Add object detection, tracking, mobile notifications, and search to any security camera.

680
Cisco proprietary
GPL-3.0 ●● Mittel
Mai 2026

Strix

Smart IP camera stream finder. Tests 102K+ URL patterns in 30 seconds. Supports 67K camera models.…

673
Cisco proprietary
MIT ●● Mittel
Apr 2026

Athena

Athena is a Material You (Material 3) firewall and ad blocker that works seamlessly on both rooted and…

621
Cisco proprietary
GPL-3.0 ●● Mittel
Jan 2026

Windows On Reins

Wor is a Powershell script to harden, debloat, optimize, enhance privacy, avoid fingerprinting and improve…

472
Cisco proprietary
GPL-3.0 ●● Mittel
Jun 2025

Macos Fortress

Firewall and Privatizing Proxy for Trackers, Attackers, Malware, Adware, and Spammers with Anti-Virus…

449
Cisco proprietary
MIT ● Einfach
Nov 2021

Local Sheriff

Think of Local sheriff as a recon tool in your browser (WebExtension).

309
Cisco proprietary
GPL-3.0 ●● Mittel
Dez 2022