Search Results for "firewall"
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Showing 861 open source projects for "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. ... -
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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. -
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ProxySQL
A high-performance MySQL proxy
...ProxySQL provides end-to-end MySQL connection handling, real-time statistics and database traffic inspection. It's got failover detection, rich query rule definitions, and a database firewall that protects your database from malicious activity or problematic application deployments. ProxySQL is trusted by numerous organizations throughout the world to meet their MySQL scalability and High Availability goals. -
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OpenSnitch
OpenSnitch is a GNU/Linux port of the Little Snitch firewall
OpenSnitch is a GNU/Linux port of the Little Snitch firewall. You can launch the GUI from the icon or from the system menu. The daemon will start intercepting connections, prompting you to allow or deny them. If you don't apply an action, after 15 seconds (configurable) it'll apply the default action configured. When you open the GUI, you'll see all the connections and processes that the daemon has intercepted. -
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SafeLine
Serve as a reverse proxy to protect your web services from attacks
SafeLine is a self-hosted WAF(Web Application Firewall) to protect your web apps from attacks and exploits. A web application firewall helps protect web apps by filtering and monitoring HTTP traffic between a web application and the Internet. It typically protects web apps from attacks such as SQL injection, XSS, code injection, os command injection, CRLF injection, LDAP injection, XPath injection, RCE, XXE, SSRF, path traversal, backdoor, brute force, HTTP-flood, bot abuse, among others. ... -
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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). ... -
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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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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). ... -
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Coraza
OWASP Coraza WAF is a golang modsecurity compatible firewall library
...CRS protects from many common attack categories including: SQL Injection (SQLi), Cross Site Scripting (XSS), PHP & Java Code Injection, HTTPoxy, Shellshock, Scripting/Scanner/Bot Detection & Metadata & Error Leakages. Coraza is a library at its core, with many integrations to deploy on-premise Web Application Firewall instances. -
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FireHOL
A firewall for humans.
FireHOL is a language (and a program to run it) that builds secure, stateful firewalls from easy-to-understand, human-readable configurations. The configurations stay readable even for very complex setups. FireQOS is a program that sets up traffic shaping from an easy-to-understand and flexible configuration file. Both programs abstract away the differences between IPv4 and IPv6. so you can concentrate on the rules you want. You can apply rules for IPv4 or IPv6, or both, as you need. -
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AgentGuard
AgentGuard is a firewall for AI agents
AgentGuard is a real-time protection layer designed to safeguard AI agents and applications from runaway execution, excessive costs, and unsafe behavior during interaction with large language model APIs. It works by intercepting API calls made by an AI system and continuously monitoring usage, including token consumption and associated costs, allowing developers to enforce strict budget limits. When predefined thresholds are reached, the system can automatically halt execution, trigger... -
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Kevux Firewall
Provide basic firewall program for Kevux using FLL.
The Kevux Firewall program is one of the oldest Featureless Linux Library (FLL) programs. This project now exists outside of the FLL as its own distinct project and repository. -
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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. Nipe currently operates over IPv4 and does not yet support IPv6, meaning that users with IPv6 connectivity may bypass Tor routing. ... -
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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. -
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frp
A Fast Reverse Proxy
frp stands for exactly what it is: a fast reverse proxy. It helps you expose a local server behind a NAT or firewall to the Internet. It is currently under development, but already supports TCP and UDP, as well as HTTP and HTTPS protocols where requests can be forwarded to internal services by domain name. It also has a P2P connect mode and many other nifty features. These include configuration files, environment variables, a dashboard that shows you frp's status and proxies' statistics information, an Admin UI that helps you check and manage frpc's configuration, and many others. -
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SoftEther VPN
Cross-platform multi-protocol VPN software
An open-source free cross-platform multi-protocol VPN program, as an academic project from University of Tsukuba, under the Apache License 2.0. The API Suite allows you to easily develop your original SoftEther VPN Server management application to control the VPN Server (e.g. creating users, adding Virtual Hubs, disconnecting a specified VPN sessions) from JavaScript, TypeScript, C# or other languages. SoftEther VPN ("SoftEther" means "Software Ethernet") is one of the world's most powerful... -
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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. ... -
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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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FWiptables. Firewall With iptables.
iptables bash script in only file wizard
The fwiptables is a one-file WIZARD, for IPTABLES with COMMAND-LINE, with CLI-MENU, with GUI-MENU, with GUI-ROLL, with GUI-SHELL. fwiptables develop with Purpose Educational Since 2020, developing code Since 2024, cleaning code Since 2025, fixing code Browse Wiki: https://sourceforge.net/p/f-iptables/wiki/browse_pages/ Anonymouse Ticket: https://sourceforge.net/p/f-iptables/tickets/ -
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Fail2Ban
Daemon to ban hosts that cause multiple authentication errors
Fail2Ban scans log files and bans IPs that show the malicious signs -- too many password failures, seeking for exploits, etc. Generally Fail2Ban is then used to update firewall rules to reject the IP addresses for a specified amount of time, although any arbitrary other action (e.g. sending an email) could also be configured. Out of the box Fail2Ban comes with filters for various services (apache, courier, ssh, etc). Fail2Ban is able to reduce the rate of incorrect authentications attempts however it cannot eliminate the risk that weak authentication presents. ... -
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V2Ray
Shell script that aims to make installing and managing V2Ray
This repository offers an interactive, one-command script that installs and manages a V2Ray-based proxy service on common Linux distributions. It automates routine but error-prone steps such as fetching the latest binaries, generating credentials (for example, UUIDs), writing JSON config files, opening firewall ports, and setting up a systemd service for automatic start. The script includes a menu-driven manager to modify ports, protocols, and users, restart the service, or view logs without hand-editing configuration files. It supports widely used transport options like TCP and WebSocket and can be paired with a reverse proxy for TLS termination, allowing cleaner integration with standard web servers. ... -
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GoProxy
High performance proxy server implemented by golang
...Supports forward proxies, reverse proxy, transparent proxy, internet nat proxies, https proxy load balancing, http proxy load balancing , socks5 proxies load balancing, socket proxy load balancing, ss proxy load balancing, TCP / UDP port mapping, SSH transit, TLS encrypted transmission, protocol conversion, anti-pollution DNS proxy, API authentication, speed limit, limit connection. Reverse proxy to help you expose a local server behind a NAT or firewall to the internet so that you or your visitors can access it directly and easily. Chained proxies, the program itself can be used as a proxy, and if it is set up, it can be used as a secondary proxy or even an N-level proxy. -
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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... -
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Inbucket
Disposable webmail server (similar to Mailinator) with built in SMTP
Inbucket is an email testing application; it will accept messages from any email address and make them available to view via a web interface. When you need to test your webapp's outbound emails with Mailinator but are stuck behind a firewall, Inbucket provides the solution. It allows you to keep your new application development secret until it's time to release it. Inbucket is ideal for validating that emails go out as part of your integration test suite, sending links to coworkers to demonstrate an email without sharing your Gmail password, and load testing your application without overwhelming your corporate Exchange server. ... -
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Mail-in-a-Box
Take back control of your email with this mail server in a box
Mail-in-a-Box helps individuals take back control of their email by defining a one-click, easy-to-deploy SMTP+everything else server, a mail server in a box. Mail-in-a-Box lets you become your own mail service provider in a few easy steps. It’s sort of like making your own gmail, but one you control from top to bottom. Technically, Mail-in-a-Box turns a fresh cloud computer into a working mail server. But you don’t need to be a technology expert to set it up. Our goals are to make deploying...
