Search Results for "network firewall"
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Showing 426 open source projects for "network firewall"
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simplewall
Simple tool to configure Windows Filtering Platform (WFP)
simplewall is an open-source Windows application that provides a user-friendly firewall control interface powered by Windows Filtering Platform (WFP), enabling users to block or allow outgoing and incoming network connections without diving into complex OS settings or command-line tools. The app presents a clean, intuitive UI where users can define rules based on process names, IP addresses, ports, and protocols, making it possible to restrict apps from accessing the internet or control specific traffic flows with fine granularity. ... -
2
LuLu
LuLu is the free open-source macOS firewall
LuLu is a free, open-source firewall for macOS developed by Objective-See. It blocks unauthorized outgoing network connections, allowing users to monitor and control which applications can transmit data externally. Designed for privacy and security, LuLu provides real-time prompts, rule-based filtering, and an intuitive interface, making it a valuable tool for Mac users seeking visibility over their system’s network behavior. -
3
NetBird
Connect your devices into a secure WireGuard-based overlay network
NetBird is an open-source solution that builds a WireGuard®-based overlay network enabling seamless, encrypted peer-to-peer connectivity without the complexity of firewall rules, port forwarding, or centralized VPN gateways. It integrates access control features such as SSO and MFA for secure, policy-driven networking. Every machine in the network runs NetBird Agent (or Client) that manages WireGuard. Every agent connects to Management Service that holds network state, manages peer IPs, and distributes network updates to agents (peers). ... -
4
NetGuard
A simple way to block access to the internet per app
NetGuard is an open-source Android firewall app that lets users control internet access on a per-app basis without requiring root access, making it a straightforward and flexible way to improve privacy and data usage management on mobile devices. By creating a local VPN service on the device, NetGuard intercepts and selectively blocks or allows network traffic for individual applications and addresses, supporting both Wi-Fi and mobile connections according to user preferences. ... -
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5
Proton VPN Windows App
Official ProtonVPN Windows app
...It includes a modern GUI built with .NET and WPF that lets users authenticate, choose VPN servers, and configure features like split tunneling or kill switch, while a background Windows service manages VPN connections using the OpenVPN protocol and handles networking tasks such as firewall and adapter configuration. The app integrates a custom TAP driver and a split tunnel callout driver to help route traffic securely and prevent leaks, and is structured so the GUI and service components work together to deliver a smooth user experience on Windows desktops and laptops. ProtonVPN’s Windows client supports both free and paid users with access to Proton’s global server network, encrypted tunnels, and privacy-first policies that block logging and respect user anonymity. -
6
zrok
Secure internet sharing made simple
...It is well suited for developers, teams, and infrastructure users who want secure tunnels without exposing raw network services directly. -
7
DarkFlare
DarkFlare Firewall Piercing (TCP over CDN)
DarkFlare is a tunneling utility that moves TCP traffic through HTTPS-looking requests routed across CDN-style infrastructure. It is designed for situations where direct TCP connections are restricted but outbound HTTPS traffic is still permitted. The project presents itself as a firewall-piercing tool, so it is best suited for authorized testing, private infrastructure access, or controlled research environments. Its approach focuses on making tunneled traffic resemble ordinary web traffic... -
8
CrowdSec
Firewall able to analyze visitor behavior & provide adapted response
CrowdSec - an open-source massively multiplayer firewall able to analyze visitor behavior & provide an adapted response to all kinds of attacks. It also leverages the crowd power to generate a global IP reputation database to protect the user network. Crowdsec shouldn't, and didn't crash any production so far we know, but some features might be missing or undergo evolutions. IP Blocklists are limited to very-safe-to-ban IPs only (~5% of the global database so far, will grow soon). ... -
9
UFW Docker
To fix the Docker and UFW security flaw without disabling iptables
UFW is a popular iptables front end on Ubuntu that makes it easy to manage firewall rules. But when Docker is installed, Docker bypasses the UFW rules and the published ports can be accessed from outside. Almost all of these solutions are similar. It requires disabling docker's iptables function first, but this also means that we give up docker's network management function. This causes containers will not be able to access the external network. -
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10
OpenWrt PassWall
OpenWRT plugin that provides proxy routing management
openwrt-passwall is a comprehensive OpenWRT plugin that provides proxy routing management for internet traffic. It integrates with various tools and protocols like Shadowsocks, V2Ray, XRay, and Trojan to bypass censorship and optimize network performance. Designed for advanced users and network administrators, Passwall features a full-featured web UI and dynamic rules for routing and DNS control. -
11
GeoLite.mmdb
MaxMind's GeoIP2 GeoLite2 Country, City, and ASN databases
...It is meant for projects that need IP geolocation data without manually navigating MaxMind downloads every time. The repository offers direct download links for each database type, making it easier to integrate GeoLite2 files into scripts, deployments, or network tools. These databases can support use cases such as traffic analysis, regional routing, analytics enrichment, firewall rules, and location-aware services. Because the data comes from MaxMind, users still need to respect the applicable database license terms. Overall, it is a lightweight distribution point for commonly used GeoIP2-compatible database files. -
12
H2 Database
H2 is an embeddable RDBMS written in Java
...Pure Java with small footprint: around 2.5 MB jar file size. ODBC driver. This database can be used in embedded mode, or in server mode. ou may get a security warning from the firewall. If you don't want other computers in the network to access the database on your machine, you can let the firewall block these connections. Only local connections are required at this time. -
13
Zapret
Advanced open source tool for bypassing DPI-based censorship
Zapret is an open source, cross-platform tool designed to help users bypass and evade Deep Packet Inspection (DPI)-based traffic blocking and censorship systems. Rather than acting as a traditional proxy or VPN, it works by manipulating network packets and traffic streams locally to confuse or disrupt DPI mechanisms used by ISPs and network filters, making it possible to access restricted websites and services without relaying traffic through third-party servers. Zapret implements multiple... -
14
Portmaster
Block Mass Surveillance
Portmaster is a free and open-source application firewall that does the heavy lifting for you. Restore privacy and take back control over all your computer's network activity. Discover everything that is happening on your computer. Expose every connection your applications make and detect evil ones. Finally, get the power to act accordingly. Protect your whole computer, not just your browser. -
15
ntopng
Web-based Traffic and Security Network Traffic Monitoring
ntopng® is a web-based network traffic monitoring application released under GPLv3. It is the new incarnation of the original ntop written in 1998, and is now revamped in terms of performance, usability, and features. ntopng is a network traffic probe that provides 360° Network visibility, with its ability to gather traffic information from traffic mirrors, NetFlow exporters, SNMP devices, Firewall logs, and Intrusion Detection systems. ntopng has been written in a portable way in order to virtually run on every Unix platform, including Linux and FreeBSD, MacOS and on Windows as well. ntopng captures traffic from SPAN/mirror ports or TAP devices using libpcap, or PF_RING (on Linux) for best performance. ... -
16
IPNetwork
IPNetwork command line and C# library take care of complex network
IPNetwork is a command-line tool and C# library for IP network calculations. It helps .NET developers work with IPv4, IPv6, CIDR, netmasks, subnets, and supernets. The library can parse networks and calculate values such as network address, CIDR, netmask, broadcast, first usable address, last usable address, and total address count. It also supports containment and overlap checks, which are useful for validation, routing tools, firewall rules, and network planning. ... -
17
Nipe
An engine to make Tor network your default gateway
Nipe is a Perl-based engine whose primary aim is to make the Tor network act as the default gateway for outgoing traffic. In practice, it configures system firewall rules (iptables) and network routing so that almost all IPv4 traffic is redirected through Tor. The tool provides commands such as install, start, stop, restart, and status to manage its behavior. When “start” is issued, it sets up the necessary rules; when “stop” is used, it attempts to remove those rules. ... -
18
Cloudflare Tunnel Client
Cloudflare Tunnel Client
Contains the command-line client for Cloudflare Tunnel, a tunneling daemon that proxies traffic from the Cloudflare network to your origins. This daemon sits between Cloudflare network and your origin (e.g. a webserver). Cloudflare attracts client requests and sends them to you via this daemon, without requiring you to poke holes on your firewall --- your origin can remain as closed as possible. Extensive documentation can be found in the Cloudflare Tunnel section of the Cloudflare Docs. ... -
19
Netdeep Secure Firewall
Next Generation Open Source Firewall
Netdeep Secure is a Linux distribution with focus on network security. Is a Next Generation Open Source Firewall, which provides virtually all perimeter security features that your company may need. It offers Web content filters, ensuring better performance of the network, allowing users to use the service efficiently and securely, providing a deep control of the use of the Web access service, blocking access to unwanted websites, Virus, Spam, Applications and intrusion attempts. ... -
20
Zeek
Zeek is a powerful network analysis framework
...Vern and the project’s leadership team renamed Bro to Zeek in late 2018 to celebrate its expansion and continued development. Zeek is not an active security device, like a firewall or intrusion prevention system. Rather, Zeek sits on a “sensor,” a hardware, software, virtual, or cloud platform that quietly and unobtrusively observes network traffic. Zeek interprets what it sees and creates compact, high-fidelity transaction logs, file content, and fully customized output, suitable for manual review on disk or in a more analyst-friendly tool like a security and information event management (SIEM) system. -
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ProxmoxVE Community Scripts
Proxmox VE Helper-Scripts (Community Edition)
A community-maintained collection of over 300 helper scripts designed to streamline setup and maintenance of Proxmox Virtual Environment (VE). Originally forked from tteck's repository, it provides automation for installations, backups, networking, storage management, and system optimizations. -
22
go-libp2p
libp2p implementation in Go
go-libp2p is the official Go implementation of the libp2p networking stack, a modular and extensible framework for peer-to-peer communication. Used in systems like IPFS and Filecoin, go-libp2p abstracts away the complexity of building decentralized networks by handling discovery, transport, security, and multiplexing layers. Its modular architecture allows developers to customize network behavior while maintaining interoperability with other libp2p implementations. It empowers developers to... -
23
Dirty Frag
Universal Linux LPE
Dirty Frag is a low-level networking and packet manipulation project focused on fragmentation-based techniques for bypassing filters, firewalls, or DPI systems during network communication. The project explores how fragmented packets can be crafted and transmitted to alter how traffic is interpreted by inspection systems or network devices. It is primarily aimed at networking enthusiasts, security researchers, and developers experimenting with packet-level behavior and protocol edge cases.... -
24
File Tunnel
Tunnel TCP connections through a file
...Its documentation includes examples for bypassing firewall limitations, tunneling through FTP, using remote internet access, and routing through remote desktop file shares. File-Tunnel is best understood as a specialized connectivity workaround for controlled environments where file access exists but normal network routing does not. -
25
RustDesk Server PRO
Some scripts for RustDesk Server Pro are hosted here
...It encompasses the components required to broker, relay, and supervise connections while adding administrative layers suitable for regulated or large environments. Organizations can standardize how clients authenticate, how sessions are permitted and audited, and how data paths are routed under diverse network constraints. The server emphasizes reliability for interactive use cases like remote control, file transfer, and support workflows, even when clients sit behind strict NAT or firewall rules. It aims to balance performance with privacy by letting companies retain custody over metadata and configuration within their own perimeter. ...
