NPS Enhanced

April 21, 2026 · View on GitHub

An enhanced and actively maintained NAT traversal and reverse proxy system with Web UI.

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Introduction

NPS is a lightweight and efficient NAT traversal and reverse proxy system for exposing services behind NAT or firewalls. It supports multiple protocols such as TCP, UDP, HTTP, HTTPS, and SOCKS5, and provides a Web management interface for convenient deployment and monitoring.

Based on the original NPS project, NPS Enhanced has evolved into an actively maintained and extensively improved edition with continuous refactoring, better stability, and many practical enhancements for modern deployment scenarios.

Before asking questions, please check: Documentation and Issues
Contributions welcome: Submit PRs, feedback, or suggestions to help improve the project
Join the discussion: Connect with other users in our Telegram Group
Android: djylb/npsclient
OpenWrt: djylb/nps-openwrt
Mirror: djylb/nps-mirror

NPS Web UI

Why NPS Enhanced

Easy to install
Provides simple deployment methods for Docker, Linux, and Windows, making setup and updates straightforward.
Lightweight and efficient
Designed to stay lightweight while delivering strong performance for daily NAT traversal and reverse proxy usage.
Easy to manage
Comes with a Web UI for configuration, monitoring, and routine management, reducing deployment and maintenance complexity.
Powerful and flexible
Supports multiple proxy types, transport protocols, and practical features for a wide range of private-network access scenarios.

Key Features

Multi-Protocol Support
Supports TCP/UDP forwarding, HTTP/HTTPS reverse proxy, HTTP/SOCKS5 proxy, P2P mode, Proxy Protocol support, HTTP/3 support, and more for different private-network access scenarios.
Cross-Platform Deployment
Compatible with major platforms such as Linux and Windows, and can be easily installed as a system service.
Web Management Interface
Provides real-time monitoring of traffic, connection status, and client states with an intuitive and user-friendly interface.
Security and Extensibility
Built-in features such as encrypted transmission, traffic limiting, access expiration controls, certificate management, and certificate renewal help improve security and manageability.
Multiple Connection Protocols
Supports connecting to the server using TCP, KCP, TLS, QUIC, WS, and WSS protocols.

What's New in v0.35.0

Node control plane and multi-platform management Adds the public /api/* management surface for external platforms, including snapshots, batch requests, config export/import, and scoped actor access.
Direct, reverse, and dual platform connectivity Supports reverse WebSocket channels, callback delivery, retry queues, replay, signing, and change-window based resynchronization for platform integrations.
Management workflow refactor Reorganizes the management UI and service layer around users, clients, tunnels, hosts, and node-facing operations.
Reliability and code quality improvements Cleans up race conditions, lint findings, persistence edge cases, and test coverage across P2P, mux, proxy, and runtime paths.

Installation and Usage

For more detailed configuration options, please refer to the Documentation.

Android | OpenWrt

Docker Deployment

DockerHub: NPS | NPC

GHCR: NPS | NPC

If you need to obtain the real client IP, you can use it together with mmproxy. For example: SSH.

NPS Server

docker pull duan2001/nps
docker run -d --restart=always --name nps --net=host -v $(pwd)/conf:/conf -v /etc/localtime:/etc/localtime:ro duan2001/nps

Tip: After installing NPS, edit nps.conf (for example: listening ports and Web admin credentials) before starting the service.

NPC Client

docker pull duan2001/npc
docker run -d --restart=always --name npc --net=host duan2001/npc -server=xxx:123,yyy:456 -vkey=key1,key2 -type=tls,tcp -log=off

Tip: Get -server, -vkey, and -type from the client page in the NPS Web UI to avoid manual input mistakes.

Server Installation

Linux

# Install (default configuration path: /etc/nps/; binary file path: /usr/bin/)
wget -qO- https://raw.githubusercontent.com/djylb/nps/refs/heads/master/install.sh | sudo sh -s nps
nps install
nps start|stop|restart|uninstall

# Update
nps update && nps restart

Tip: For first-time setup, edit /etc/nps/nps.conf and verify it before running nps start.

Windows

If you do not want to choose the architecture, legacy package, or install path manually, use the repository root install.ps1.

Windows 7 / 8 / 8.1 users should use the version ending with old: 64 / 32

.\install.ps1 nps
.\nps.exe install
.\nps.exe start|stop|restart|uninstall

# Update
.\nps.exe stop
.\nps-update.exe update
.\nps.exe start

Client Installation

Linux

wget -qO- https://raw.githubusercontent.com/djylb/nps/refs/heads/master/install.sh | sudo sh -s npc
/usr/bin/npc install -server=xxx:123,yyy:456 -vkey=xxx,yyy -type=tls -log=off
npc start|stop|restart|uninstall

# Update
npc update && npc restart

Tip: For npc install, use the command generated on the client page in the NPS Web UI.

Windows

If you do not want to choose the architecture, legacy package, or install path manually, use the repository root install.ps1.

Windows 7 / 8 / 8.1 users should use the version ending with old: 64 / 32

.\install.ps1 npc
.\npc.exe install -server="xxx:123,yyy:456" -vkey="xxx,yyy" -type="tls,tcp" -log="off"
.\npc.exe start|stop|restart|uninstall

# Update
.\npc.exe stop
.\npc-update.exe update
.\npc.exe start

Tip: The client supports connecting to multiple servers simultaneously. Example: npc -server=xxx:123,yyy:456,zzz:789 -vkey=key1,key2,key3 -type=tcp,tls Here, xxx:123 uses TCP, and yyy:456 and zzz:789 use TLS.

If you need to connect to older server versions, add -proto_version=0 to the startup command.