Showing 103 open source projects for "nat"

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  • 1
    NATMap

    NATMap

    TCP/UDP port mapping for full cone NAT

    This project is used to establish a TCP/UDP port mapping from an ISP NAT public address to a local private address. If all layers of NAT are full cones (NAT-1), any host can access internal services through the mapped public address. In bind mode, all traffic does not go through this program.
    Downloads: 5 This Week
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  • 2
    Coturn TURN server

    Coturn TURN server

    coturn TURN server project

    coturn is a free open source implementation of TURN and STUN Server. The TURN Server is a VoIP media traffic NAT traversal server and gateway.
    Downloads: 7 This Week
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  • 3
    Matchbox

    Matchbox

    Painless peer-to-peer WebRTC networking for rust wasm

    Matchbox is a WebRTC-based networking library for the Bevy game engine, enabling multiplayer games to run in the browser or native environments with peer-to-peer communication. It handles matchmaking, NAT traversal, and synchronization in real-time, making it easier for game developers to add fast and scalable multiplayer features. Designed with simplicity and performance in mind, Matchbox supports both WebAssembly and desktop targets. It’s especially useful for browser-based games that need reliable real-time communication without external dependencies.
    Downloads: 3 This Week
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  • 4
    GoProxy

    GoProxy

    High performance proxy server implemented by golang

    The GoProxy is a high-performance http proxy, https proxy, socks5 proxy, ss proxy, websocket proxies, tcp proxies, udp proxies, game shield, game proxies. 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. ...
    Downloads: 33 This Week
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  • 5
    Seesaw v2

    Seesaw v2

    Seesaw v2 is a Linux Virtual Server based load balancing platform

    ...Built with production reliability in mind, it uses anycast and health-checking to steer traffic to healthy backends while avoiding single points of failure. It supports common load-balancing policies, NAT, and VIP management, and pairs with standard Linux networking primitives for predictable performance. A controller/worker architecture separates configuration and dataplane concerns, enabling safe rollouts and fast failover. Operators get tooling to define services declaratively and to observe the state of pools, backends, and routes. ...
    Downloads: 0 This Week
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  • 6
    Aspia

    Aspia

    Remote desktop and file transfer tool

    Free open-source application for real-time desktop remote control and file transfer. With Aspia, you can create your own NAT traversal infrastructure (using Router and Relay servers) with connection by ID or use direct connections. Aspia supports many features. Among them, detailed information about the system, task manager, audio, and text chat. It is safe. All transmitted data is encrypted. Add computers for quick connection, and create computer groups.
    Downloads: 24 This Week
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  • 7
    frp

    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.
    Downloads: 82 This Week
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  • 8
    Weron

    Weron

    Overlay networks based on WebRTC.

    Weron is a peer-to-peer overlay network built using WebRTC and WebSockets, enabling remote access and tunneling between machines behind NATs without the need for centralized servers. It uses Golang on the backend and supports secure connections using WireGuard-compatible encryption. Weron allows developers to create scalable mesh or point-to-point networks for applications like remote desktop, Kubernetes access, or collaborative tools—all without requiring public IPs or complicated port...
    Downloads: 4 This Week
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  • 9
    FireHOL

    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.
    Downloads: 4 This Week
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  • 10
    go-libp2p

    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...
    Downloads: 1 This Week
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  • 11
    ttl

    ttl

    Fast, modern traceroute with real-time TUI, per-hop stats

    ttl is a modern traceroute-style network diagnostic tool built to feel more like an interactive, real-time “mtr replacement” than a one-shot traceroute dump. It uses a full-screen terminal UI to continuously probe paths and refresh hop-by-hop measurements, which makes transient loss, jitter, and routing changes much easier to spot. The design emphasizes per-hop visibility with live statistics, and it enriches what you see by resolving network identity details like ASN and geolocation when...
    Downloads: 7 This Week
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  • 12
    ioredis

    ioredis

    A performance-focused Redis client for Node.js

    ...Support for offline queue and ready checking. Support for ES6 types, such as Map and Set. Support for GEO commands. Support for Redis ACL. Sophisticated error handling strategy. Support for NAT mapping. Support for autopipelining. ioredis supports all of the scripting commands such as EVAL, EVALSHA and SCRIPT.
    Downloads: 0 This Week
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  • 13
    µTorrent

    µTorrent

    Fast, efficient torrent downloader with minimal resource consumption

    µTorrent is the world's most popular BitTorrent client, designed for speed and efficiency. This compact software enables seamless peer-to-peer file sharing with minimal CPU and memory usage. Perfect for users seeking reliable torrent downloads without system slowdown. The intuitive interface makes torrent management simple, while advanced features like bandwidth prioritization, RSS feed support, and remote access satisfy power users. Built-in encryption ensures secure connections, and the...
    Downloads: 4,759 This Week
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  • 14
    SKUDONET

    SKUDONET

    SKUDONET Open Source Load Balancer and Web Application Firewall

    SKUDONET Community Edition is an Open Source Load Balancer and Web Application Firewall (WAF) designed for Linux server environments. Formerly known as Zevenet, it is based on Debian 12.8, providing a stable and secure foundation for reliable application delivery and cybersecurity. This edition is suitable for Linux and Windows server deployments (not for mobile platforms), offering advanced Layer 4 and Layer 7 traffic management with support for up to 250,000 TCP requests per second (L4)...
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    Downloads: 543 This Week
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  • 15
    UltraViewer

    UltraViewer

    Free remote desktop control software for Windows

    UltraViewer is a lightweight, fast and completely free remote desktop software designed for remote support, online meetings, remote work and computer administration. It allows you to remotely control a partner’s computer securely with minimal latency, transfer files, chat and share screen in both directions. Widely used by IT technicians and individuals for quick remote assistance. The program works through firewalls and routers without complex configuration thanks to built-in ID/Password...
    Downloads: 1,223 This Week
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  • 16

    GCMT

    Gentoo Cluster Managment Tools

    A collection of bash scripts to manage Gentoo System Images (GSIs), compute nodes, file servers and users on a Gentoo-based HPC cluster. GCMT works with PXE boot, dhcp, tftp, qmail, djbdns and tinydns, NIS, NFS, and TORQUE.
    Downloads: 0 This Week
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  • 17
    Windows Native Unix Shell (wnus prompt)

    Windows Native Unix Shell (wnus prompt)

    A comprehensive Unix/Linux-like shell environment for Windows 7+ 64bit

    This project is implemented entirely in C++ without external dependencies. Windows Native Unix Shell (wnus prompt) (pronounced Wenus) brings the power and familiarity of bash sh ash commands and common terminal utilities to native Windows, with full NTFS support and Windows API integration. . It contains 342 fully implemented commands built-in , encompassing file managements operation and so much more. It has a comprehensive help system. This doesn't require WSL to work, or any...
    Downloads: 3 This Week
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  • 18

    UFTP

    Encrypted UDP based FTP with multicast

    ...The multicast encryption scheme is based on TLS with extensions to allow multiple receivers to share a common key. UFTP also has the capability to communicate over disjoint networks separated by one or more firewalls (NAT traversal) and without full end-to-end multicast capability (multicast tunneling) through the use of a UFTP proxy server. These proxies also provide scalability by aggregating responses from a group of receivers.
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    Downloads: 1,527 This Week
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  • 19
    Kilo

    Kilo

    Kilo is a multi-cloud network overlay built on WireGuard

    ...Kilo connects nodes in a cluster by providing an encrypted layer 3 network that can span across data centers and public clouds. The Pod network created by Kilo is always fully connected, even when the nodes are in different networks or behind NAT. By allowing pools of nodes in different locations to communicate securely, Kilo enables the operation of multi-cloud clusters. Kilo's design allows clients to VPN to a cluster in order to securely access services running on the cluster.
    Downloads: 6 This Week
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  • 20
    Udp2raw-tunnel

    Udp2raw-tunnel

    Turns UDP traffic into encrypted UDP/fakeTCP/ICMP traffic

    ...Linux host (including desktop Linux,Android phone/tablet,OpenWRT router,or Raspberry PI) with root account or cap_net_raw capability. ICMP/FakeTCP headers help you bypass UDP blocking, UDP QOS or improper UDP NAT behavior on some ISPs. In ICMP header mode,udp2raw works like an ICMP tunnel. UDP headers are also supported. In UDP header mode, it behaves just like a normal UDP tunnel, and you can just make use of the other features (such as encryption, anti-replay, or connection stalization).
    Downloads: 39 This Week
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  • 21
    OpenWRT ©VMWare ©ESXi Appliance

    OpenWRT ©VMWare ©ESXi Appliance

    OpenWRT ©VMWare ©ESXi Appliance NAT router

    Ready to use OpenWRT NAT router appliance for ©VMWare ©ESXi. You only have to uncompress and register it to your ©ESXi server to be able to use it as a fencing device between your LAN network and some NATed network inside your ©ESXi host. It can also be easily configured to serve as a firewall in a dedicated ©ESXi host. You can follow the setup guide at https://33hops.com/vmware-esxi-nat-with-custom-firewall.html The appliance comes in a very small package (less than 5 MB), still it's fully functional, make not mistake. ...
    Downloads: 6 This Week
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  • 22

    backconn

    allows connecting to hosts behind firewalls and NAT

    backconn is a networking tool that is supposed to solve the problem of connecting to devices that are behind a firewall or a NAT box. It is a set of two programs: backconn-cli and backconn-adm. backconn-cli needs to be installed on the device you wish to have access to, while backconn-adm is the server part, and needs to be installed on a publicly available host.
    Downloads: 0 This Week
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  • 23

    Legacy Game Netplay System

    Automatic game launcher for emulators (PS2 edition)

    ...The current edition can connect any two players on the planet using LogMeIn VPN, but also supports direct peer to peer connection over internet if at least one of the players has NAT traversable internet connection. You must read the 'readme.txt' carefully as there will be some setup to be done before you can play - both players should follow identical setup with exception that one should start the game with player1.bat and other with player2.bat. Current version supports Playstation 2 emulator but the system supports numerous other emulators, support for which along with graphical interface for setup might be added in future.
    Downloads: 2 This Week
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  • 24
    Stuntman - STUN server and client

    Stuntman - STUN server and client

    High performance, production quality STUN server and client library

    New version 1.2. This is the code to STUNTMAN - an open source STUN server and client code by john selbie. Compliant with the latest RFCs including 5389, 5769, and 5780. Also includes backwards compatibility for RFC 3489. ICE and WebRTC ready. Version 1.2 compiles on Linux, MacOS, BSD, and Solaris. Supports the STUN protocol on both UDP and TCP for both IPv4 and IPv6. Windows binaries are also provided. Additional features are in development. This is a mirror of the code on...
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    Downloads: 10 This Week
    Last Update:
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  • 25

    Metasploitable

    Metasploitable is an intentionally vulnerable Linux virtual machine

    ...This VM can be used to conduct security training, test security tools, and practice common penetration testing techniques. The default login and password is msfadmin:msfadmin. Never expose this VM to an untrusted network (use NAT or Host-only mode if you have any questions what that means). To contact the developers, please send email to msfdev@metasploit.com
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    Downloads: 14,289 This Week
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