Open-source alternatives to Pfsense

This project is a comprehensive computer networking textbook and instructional resource. It serves as a technical guide for the design and implementation of network layers, protocols, and hardware architecture, covering the spectrum from physical links to application-layer protocols. The content provides a detailed study of standards for congestion control, reliable data delivery, and internetwork routing. It includes specialized technical material on network security, public-key infrastructure, and the operation of modern cloud infrastructure and data centers. The material covers a broad ra

wireguard-go is a Go implementation of the WireGuard protocol that operates as a userspace tunneling engine. It functions as a cross-platform network interface designed to establish encrypted tunnels between peers without requiring modifications to the system kernel. By implementing the protocol in userspace, this project provides a consistent network stack that enables secure peer-to-peer communication across different operating systems. It allows for the creation and management of encrypted network interfaces and tunnels to route private traffic over public networks.

create_ap is a Linux network management script used to create wireless access points. It functions as a tool for establishing NAT gateways and network bridges to share internet connectivity from a wired or wireless connection with other devices. The project automates the configuration of wireless interfaces, including the management of channels, encryption standards, and network visibility. It supports both network address translation and data link layer bridging to route traffic to wireless clients. Additional capabilities include wireless client isolation to prevent peer-to-peer communicat

WireGuard Manager is a system orchestration tool designed to automate the deployment, configuration, and lifecycle management of virtual private network infrastructure. It functions by translating high-level user intent into precise, declarative system configurations, managing kernel-level network interfaces, and enforcing firewall-based traffic control to ensure secure, isolated network routing. The project distinguishes itself by providing a centralized web-based management interface that abstracts the complexity of manual configuration files. It includes comprehensive administrative tools

This project is a shell-based orchestration tool designed to automate the deployment and administration of WireGuard virtual private network servers on Linux hosts. It functions as a system-level networking utility that handles the installation of kernel modules, the configuration of secure tunnel interfaces, and the management of network routing rules to enable encrypted remote access. The tool provides an interactive command-line interface that simplifies the lifecycle management of network peers. It allows administrators to dynamically add or remove client access profiles, assign custom DN

Open vSwitch is a software-defined network switch and high-performance data plane engine. It functions as a virtual layer 2 switch and network orchestrator, implementing the OpenFlow protocol to decouple the control plane from the data plane for programmable network forwarding. The project distinguishes itself through a userspace-kernel datapath split and the use of poll-mode drivers for kernel-bypass acceleration. It provides a network tunneling gateway to extend virtual networks across physical hosts and utilizes a transactional, schema-based configuration database with state replication fo

This project is an Android RPA framework designed for automating user interfaces and system tasks on rooted Android devices using Python and ADB. It provides a suite of tools for rooted device management, allowing for programmatic control of system settings, application lifecycles, and shell command execution via a remote API. The framework distinguishes itself through a combination of dynamic instrumentation and AI integration. It can inject scripts into running processes to hook Java interfaces and modifies application behavior in real time. Additionally, it supports large language model in

VPNOn is a deep link VPN client and connection manager that enables the establishment of secure network tunnels and the opening of specific web addresses via custom URL schemes. It functions as a configuration importer and a system tray utility for managing secure connections. The project differentiates itself through automated configuration setup, using custom URL schemes to import server credentials and serialized network settings from external sources. It further automates connectivity by triggering a sequence that establishes a network tunnel before launching a browser to a target address

Surge is a network traffic routing and configuration system designed to categorize and steer network requests using curated rule sets, domain lists, and IP databases. It provides the data structures and filtering logic necessary to manage how application traffic is directed across proxies, direct connections, or regional gateways. The project distinguishes itself through granular traffic identification and steering. It identifies network requests by matching them against system process names, user-agent strings, and geographic IP ranges to apply specific routing policies. This allows for the

This repository provides configuration sets for the Quantumult X network proxy client. It consists of routing rules, policy groups, and script rewrites designed to manage network connectivity and automation. The project features a network traffic router that uses rules and regular expressions to direct traffic toward specific proxy servers based on destination. It includes an HTTP request rewriter to modify network requests and responses to customize application behavior or bypass restrictions. The configuration covers automated task scripts for the maintenance of external web services, regi

Karing is a multi-protocol proxy client and network traffic router designed to manage and direct internet traffic through various proxy protocols. It functions as a proxy subscription manager that imports and converts server lists from multiple external formats and providers into a unified configuration. The project features a cross-device synchronization system that keeps network routing settings and server lists consistent across multiple devices via cloud or local sharing. It includes a latency-based server selector that measures real-time response times to automatically connect to the fas

This project provides a collection of structured, binary-encoded routing datasets designed for proxy software to automate network traffic management. By mapping domain names and IP addresses to specific functional categories, it enables proxy clients to make granular, policy-based connection decisions. The repository serves as a centralized source for routing metadata, ensuring that traffic steering logic remains consistent across various networking implementations. The project distinguishes itself through an automated aggregation pipeline that processes community-maintained datasets into a u

OpenVPN is a cross-platform networking solution that establishes secure virtual private network connections by wrapping data traffic within encrypted tunnels. It functions as a server-side application that authenticates remote endpoints and routes encrypted traffic to provide access to private network resources across untrusted public networks. The software utilizes standard cryptographic protocols to perform mutual authentication and key exchange over a dedicated control channel. It verifies the identity of remote systems through certificate-based authentication, ensuring that only trusted e

EasyTier is a decentralized peer-to-peer virtual private network and mesh networking tool. It functions as a layer 3 network overlay that establishes secure tunnels between devices without requiring a centralized server or coordinator. It also serves as a WireGuard-compatible VPN, capable of acting as a server for standard WireGuard clients. The project distinguishes itself through multipath latency-based routing and the use of KCP or QUIC proxies to mitigate packet loss and stabilize connections in high-loss environments. It provides a virtual networking manager featuring a web management co

SwitchyOmega is a browser proxy manager and extension that controls network traffic routing and manages proxy configurations through a graphical interface. It functions as a proxy routing orchestrator and a PAC script generator, converting user-defined rules into JavaScript auto-config scripts for automated network routing. The project enables users to organize network configurations into distinct profiles, allowing for the switching of proxying logic based on different environments. It automates the selection of proxy servers by matching requested URLs against predefined patterns to avoid ma

Lura is an API gateway and traffic router that directs network requests to backend services using a configurable pipeline of processing steps. It functions as a backend load balancer and a request middleware engine designed to validate, modify, and transform incoming requests and responses. The system specializes in API response aggregation, allowing it to execute concurrent requests to multiple backend services and merge the results into a single unified output. This includes the ability to perform dynamic response mapping by renaming fields and filtering data to optimize the final client pa

This is a demonstration project that illustrates the classic SSM architecture pattern—combining SpringMVC, Spring, and MyBatis—for building scalable enterprise Java web applications. It serves as both a learning resource and a practical tutorial for developers who want to understand how these three frameworks work together in a full-stack context. The project provides a step-by-step guide for assembling SpringMVC, Spring, and MyBatis into a cohesive enterprise web application stack, covering everything from Spring dependency injection and transaction management to MyBatis database access and

tiny-spring is a Java inversion of control container and aspect-oriented programming framework. It provides a system for managing object lifecycles and dependency injection to decouple application components. The project features a bytecode proxy generator that enables method interception and behavioral modification for classes that do not implement interfaces. It uses pointcut expressions to match specific classes and methods for the execution of cross-cutting logic via dynamic proxies. The framework manages singleton components and resolves object dependencies using lazy initialization. Ap

IncludeOS is a unikernel operating system that bundles application code with only the necessary kernel drivers into a single bootable image. It functions as a resource-efficient cloud service virtual machine and a lightweight serverless runtime environment designed to minimize memory footprints and boot times. The project provides a Linux compatibility layer via a C library, allowing applications written for Linux to be compiled and executed within the unikernel environment. It also serves as a network appliance framework for building high-performance firewalls and load balancers using config

This project is network firmware for the ESP32 that functions as a wireless repeater, NAT router, or wireless bridge to extend WiFi coverage. It can operate as a WiFi range extender, a layer-2 bridge for shared subnets, or a NAT router that creates a private secondary subnet to connect clients to an upstream network. A key differentiator is its ability to act as an enterprise WiFi to PSK converter, translating PEAP-authenticated networks into WPA2-PSK networks for devices that do not support enterprise authentication. Additionally, it includes a network traffic mirroring tool that streams int

Netshoot is a Docker network troubleshooting toolkit and container image bundled with specialized utilities for DNS resolution, performance benchmarking, and TCP/IP packet inspection. It serves as a portable set of tools designed for diagnosing connectivity and routing issues within Docker and Kubernetes environments. The project is distributed as a tool-aggregated container image that can be deployed as a debugging sidecar or an ephemeral runtime. It supports namespace-joined execution, allowing the toolkit to attach to the network namespace of another process to inspect traffic and diagnose

gost is a multi-protocol proxy tunnel and secure tunneling server designed to route network traffic through encrypted connections. It functions as a traffic obfuscation gateway and a transparent proxy server capable of intercepting TCP and UDP traffic at the IP level. The project also includes a virtual network interface manager for creating TUN and TAP devices to intercept operating system packets. The system distinguishes itself through a chain-based request routing model, allowing traffic to pass through an ordered sequence of proxy nodes. It provides extensive transport-layer encapsulatio

AdAway is an Android network firewall and DNS traffic filter that functions as a local VPN ad blocker. It intercepts network requests to prevent advertisements and tracking domains from reaching the device by filtering traffic against host lists. The project features a host file manager capable of importing and converting blocklists from external third-party providers. It includes a system for managing both blocked and allowed domains, allowing for the creation of custom rules to permit specific trusted sites or block individual domains. The tool provides granular traffic control through app

sshuttle is an SSH tunneling proxy and user-space network router that forwards local network traffic to a remote network via an encrypted SSH connection. It serves as an alternative to traditional VPN installations for routing traffic and accessing private remote resources. The project functions by redirecting network traffic through an SSH tunnel without requiring administrative privileges on the remote server. It utilizes a user-space TCP/IP stack to process packets, allowing it to operate without kernel-level administrative access. Its capabilities cover remote network access, secure remo

dae is a high-performance Linux network tool that functions as an eBPF transparent proxy. It intercepts and redirects packets at the kernel level to route internet traffic based on domains, IP addresses, and process names. The project distinguishes itself by modifying TLS handshakes to simulate browser signatures, which prevents server-side detection of proxy traffic. It also implements a full-cone network address translation gateway to maintain stable bidirectional connections and utilizes a latency-based node selector to automatically route traffic through the fastest available proxy nodes.

Proxychains is a SOCKS proxy chain tool and TCP traffic redirector that forces outgoing network connections from applications into a specified sequence of proxy servers. It functions as a proxy sequence orchestrator, routing TCP network traffic through multiple SOCKS or HTTP proxies to anonymize network paths and bypass firewalls. The tool includes a remote DNS resolver that performs domain name resolution through a remote proxy to prevent DNS leaks and hide queries. This ensures that network traffic from applications that are not proxy-aware is redirected through the configured intermediarie

ShadowsocksR-Windows is a proxy client for Windows designed to route network traffic through ShadowsocksR proxy servers. It functions as a network proxy that establishes secure tunnels to bypass internet censorship and regional restrictions. The application manages system-wide network routing and provides SOCKS5 proxy client capabilities to hide origin IP addresses. It redirects local traffic through a remote server to maintain internet privacy and circumvent network-level blocks. The project incorporates traffic interception and encapsulation through a user-mode network wrapper and TAP-base