Egor 0054e671f8 feat(tuic): implement native in-process Go TUIC v5 server (#6577)
* feat(tuic): implement native in-process Go TUIC v5 server

- Implement native TUIC v5 protocol server on pure Go using quic-go
- Bridge decrypted TCP/UDP traffic into Xray-core via loopback SOCKS5 inbound
- Support full Xray routing rules (geosite/geoip) and cascading outbounds
- Implement atomic per-client traffic accounting with TotalGB and ExpiryTime
- Add automatic legacy cleanup for older Rust tuic-server binaries, configs, and orphaned processes
- Eliminate external Rust tuic-server downloads from install/CI scripts

* fix(tuic): address traffic accounting, client reload, and socket lifecycle issues

* fix(service): update checkTuicSocksReverseConflict to use bindAddr for listenOverlaps

* fix(tuic): resolve traffic double-accounting, UDP fragmentation, and socket lifecycle issues

* feat(tuic): complete native Go integration and address audit findings

- Integrate an isolated QUIC fork pinned to a specific commit
- Preserve original QUIC dependencies for Xray, Hysteria and Gin
- Apply BBR, CUBIC and Reno to server connections and exported client profiles
- Bridge Xray BBR with correct monotonic time and congestion type conversions
- Handle congestion sender recreation after PMTU changes
- Update congestion control for new connections without restarting the listener
- Preserve existing connections and their selected congestion controller
- Apply per-inbound log levels through the shared panel logger
- Add lifecycle, authentication and TCP/UDP relay events without exposing secrets
- Rate-limit repeated authentication and relay warnings
- Support native and QUIC UDP relay modes on the same listener
- Recover UDP associations after relay worker failures
- Fix TCP relay cancellation, idle shutdown and half-close handling
- Close active sessions when client credentials are revoked or disabled
- Track traffic by immutable client statistics IDs across email and UUID changes
- Prevent ambiguous accounting and duplicate UUIDs within TUIC inbounds
- Persist pending traffic in a durable shutdown journal
- Replay journal batches transactionally without duplicate accounting
- Report server shutdown failures through the shared logger
- Preserve legacy flat and nested TUIC settings compatibility
- Normalize congestion controller values consistently across backend and frontend
- Preserve controller, UDP mode and SNI in client links and subscriptions
- Separate client profile options from server settings in the TUIC form
- Keep certificate path autofill explicit when changing client SNI
- Align UDP packet size validation with protocol limits
- Simplify and localize TUIC field hints and certificate autofill messages
- Add controller, TCP/UDP, logging and live settings update tests
- Add accounting identity, journal replay and shutdown regression tests
- Add relay recovery, session revocation and legacy frontend form tests

* fix(service): alias the TUIC duplicate-UUID subquery for PostgreSQL < 16

syncInboundClients runs a COUNT(*) FROM (subquery) for every client sync,
whatever the protocol. PostgreSQL before 16 rejects a FROM subquery with
no alias, so on the distro PostgreSQL install.sh provisions (14 on Ubuntu
22.04, 15 on Debian 12) every client add or edit failed with SQLSTATE
42601. Reproduced against postgres:15 with the new env-gated test.

* fix(database): create tuic_traffic_receipts through the model migration

AddTuicTrafficBatch issued CREATE TABLE IF NOT EXISTS at runtime, a schema
change outside db.go. The table was invisible to allModels and
migrationModels, so x-ui migrate-db dropped the receipts and a retained
journal could be counted twice after a SQLite to PostgreSQL move. It is
now a GORM model in both lists, and the insert uses OnConflict DoNothing.

* chore(tuic): skip the ICMP-dependent relay test on Windows, drop dead collectors

Go disables SIO_UDP_CONNRESET on Windows, so a dead UDP bridge never fails
a read there and TestAudit3UDPAssociationMustRecoverAfterBridgeReadFailure
was red on every Windows run. Server.CollectTotalTraffic and
Manager.CollectTraffic had no caller.

* refactor(tuic): serve TUIC on apernet/quic-go instead of a personal fork

The native server depended on github.com/poise52/quic-go, a personal fork
of apernet/quic-go patched only to pick the congestion controller before
the handshake. That put a second QUIC/TLS stack in the binary that no
upstream security fix reaches. apernet/quic-go is already in the graph
through xray-core and exposes SetCongestionControl, so BBR is now installed
on each accepted connection with Xray's own congestion.UseBBR; the
cross-module BBR adapter is gone.

apernet ships New Reno as its only built-in sender, so a cubic setting is
served as new_reno server-side (clients still get cubic in their profile).
The test inspectors now read the sender under congestionMutex, which the
post-handshake install writes under.

Linux loopback, single stream through Xray: 2428 -> 3383 Mbit/s (bbr).

---------

Co-authored-by: Sanaei <ho3ein.sanaei@gmail.com>
2026-10-03 02:56:02 +02:00
2023-02-09 22:48:06 +03:30

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3x-ui

Release Build GO Version Downloads License Go Reference Documentation

3X-UI is an advanced, open-source web control panel for managing Xray-core servers. It provides a clean, multi-language interface for deploying, configuring, and monitoring a wide range of proxy and VPN protocols — from a single VPS to multi-node deployments.

Built as an enhanced fork of the original X-UI project, 3X-UI adds broader protocol support, improved stability, per-client traffic accounting, and many quality-of-life features.

Important

This project is intended for personal use only. Please do not use it for illegal purposes or in a production environment.

Features

  • Multi-protocol inbounds — VLESS, VMess, Trojan, Shadowsocks, WireGuard, AmneziaWG, TUIC v5, Hysteria2, MTProto, HTTP, SOCKS (Mixed), Dokodemo-door / Tunnel, and TUN.
  • Modern transports & security — TCP (Raw), mKCP, WebSocket, gRPC, HTTPUpgrade, and XHTTP, secured with TLS, XTLS, and REALITY.
  • AmneziaWG built in — DPI-resistant WireGuard runs inside the panel on a userspace network stack, with no kernel module, DKMS, or extra packages to install.
  • TUIC v5 sidecar — High-performance QUIC-based proxy with native UDP relay traffic metering, 0-RTT handshakes, and BBR congestion control.
  • MTProto proxies — per-client FakeTLS secrets, ad-tags, and quotas, applied live without dropping existing connections.
  • Fallbacks — serve multiple protocols on a single port (e.g. VLESS and Trojan on 443) using Xray's fallback support.
  • Per-client management — traffic quotas, expiry dates, IP limits with trusted-address exemptions, HWID device limits, scheduled renewal cycles, live online status, and one-click share links, QR codes, and subscriptions.
  • Traffic statistics — per inbound, per client, and per outbound, with reset controls.
  • Multi-node support — manage and scale across multiple servers from a single panel, including cloning inbounds onto other nodes.
  • Outbound & routing — WARP, NordVPN, PIA, custom routing rules, load balancers with balancer-to-balancer fallback, and outbound proxy chaining. Bundled geosite and geoip categories are browsable straight from the rule editor.
  • Built-in subscription server — raw, JSON, and Clash output, auto-selected from the client's User-Agent, plus custom page templates.
  • Telegram and Discord bots for remote monitoring and management.
  • RESTful API with scoped, optionally expiring tokens and an in-panel API reference.
  • Installable panel (PWA) — pin 3X-UI to a desktop or phone home screen.
  • Flexible storage — SQLite (default) or PostgreSQL.
  • 13 UI languages with dark and light themes.
  • Fail2ban integration for enforcing per-client IP limits.

Screenshots

Click to expand Overview Inbounds Add client Configs

Quick Start

bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh)

To install a specific version, append its tag (e.g. v3.7.0):

bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) v3.7.0

To install the rolling dev build (latest per-commit pre-release from main, not a stable release), pass dev-latest:

bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) dev-latest

During installation a random username, password, and access path are generated. After installation, run x-ui to open the management menu, where you can start/stop the service, view or reset your login credentials, manage SSL certificates, and more.

Every release asset is published with a .sha256 sum next to it. Both install.sh and the updater verify the archive against that sum and abort on a mismatch.

For full documentation — installation, configuration, operations, and the complete API reference — visit docs.sanaei.dev.

Unattended install

The installer also runs non-interactively for cloud-init. Set XUI_NONINTERACTIVE=1 (or pipe with no TTY) and it installs end-to-end with zero prompts, generating random credentials and writing them to /etc/x-ui/install-result.env. See deploy/ for:

Supported Platforms

Operating systems: Ubuntu, Debian, Armbian, Fedora, CentOS, RHEL, AlmaLinux, Rocky Linux, Oracle Linux, Amazon Linux, Virtuozzo, Arch, Manjaro, Parch, openSUSE (Tumbleweed / Leap), Alpine, and Windows.

Architectures: amd64 · 386 · arm64 (aarch64) · armv7 · armv6 · armv5 · s390x.

Database Options

3X-UI supports two backends, chosen during the install:

  • SQLite (default) — a single file at /etc/x-ui/x-ui.db. Zero setup, ideal for small and medium deployments.
  • PostgreSQL — recommended for high client counts or multi-node setups. The installer can install PostgreSQL locally for you, or accept a DSN to an existing server.

At runtime the backend is selected via environment variables (the installer writes these to /etc/default/x-ui for you):

XUI_DB_TYPE=postgres
XUI_DB_DSN=postgres://xui:password@127.0.0.1:5432/xui?sslmode=disable

Migrating an existing SQLite install to PostgreSQL

x-ui migrate-db --dsn "postgres://xui:password@127.0.0.1:5432/xui?sslmode=disable"
# then set XUI_DB_TYPE and XUI_DB_DSN in /etc/default/x-ui and restart:
systemctl restart x-ui

The source SQLite file is left untouched; remove it manually once you have verified the new backend.

Docker

The default docker compose up -d keeps using SQLite. To run with the bundled PostgreSQL service, uncomment the two XUI_DB_* env lines in docker-compose.yml and start with the profile:

docker compose --profile postgres up -d

The image bundles Fail2ban (enabled by default) to enforce per-client IP limits. Fail2ban bans offenders with iptables, which requires the NET_ADMIN capability. docker-compose.yml already grants it via cap_add; if you start the container with docker run instead, add the capabilities yourself, otherwise bans are logged but never applied:

docker run -d --cap-add=NET_ADMIN --cap-add=NET_RAW ... ghcr.io/mhsanaei/3x-ui

Environment Variables

Variable Description Default
XUI_DB_TYPE Database backend: sqlite or postgres sqlite
XUI_DB_DSN PostgreSQL connection string (when XUI_DB_TYPE=postgres) —
XUI_DB_FOLDER Directory for the SQLite database file /etc/x-ui
XUI_DB_MAX_OPEN_CONNS Maximum open connections (PostgreSQL pool) —
XUI_DB_MAX_IDLE_CONNS Maximum idle connections (PostgreSQL pool) —
XUI_INIT_WEB_BASE_PATH The initial URI path for the web panel /
XUI_ENABLE_FAIL2BAN Enable Fail2ban-based IP-limit enforcement true
XUI_LOG_LEVEL Log verbosity (debug, info, warning, error) info
XUI_DEBUG Enable debug mode false
XUI_TUNNEL_HEALTH_MONITOR Enable the tunnel health monitor (probes a URL and restarts xray after repeated failures; a restart drops all clients) false
XUI_TUNNEL_HEALTH_PROXY Proxy the probe is sent through; point it at a local xray inbound so the probe tests the tunnel (e.g. socks5://127.0.0.1:1080). Empty means the probe only checks host connectivity —
XUI_TUNNEL_HEALTH_URL URL probed for tunnel health https://www.cloudflare.com/cdn-cgi/trace
XUI_TUNNEL_HEALTH_INTERVAL Interval between probes 30s
XUI_TUNNEL_HEALTH_TIMEOUT Per-probe timeout 10s
XUI_TUNNEL_HEALTH_FAILURES Consecutive failures before a restart is triggered 3
XUI_TUNNEL_HEALTH_COOLDOWN Minimum delay between consecutive restarts 5m
NODE_TOKEN_ENCRYPTION Encryption at rest for node API tokens: off, migration, or required (note: no XUI_ prefix) off
XUI_NODE_TOKEN_KEY_FILE JSON keyring (mode 0600) holding the active key id and its base64 32-byte keys /etc/x-ui/node_token_key.json
XUI_NODE_TOKEN_KEY A single base64 32-byte key, used only when the key file cannot be loaded —

The complete list is on the environment variables reference.

Supported Languages

The panel UI is available in 13 languages:

English · فارسی · العربية · 中文(简体) · 中文(繁體) · Español · Русский · Українська · Türkçe · Tiếng Việt · 日本語 · Bahasa Indonesia · Português (Brasil)

Contributing

Contributions are welcome. Please read the Contributing Guide before opening an issue or pull request.

A Special Thanks to

Acknowledgment

  • Iran v2ray rules (License: GPL-3.0): Enhanced v2ray/xray and v2ray/xray-clients routing rules with built-in Iranian domains and a focus on security and adblocking.
  • Russia v2ray rules (License: GPL-3.0): This repository contains automatically updated V2Ray routing rules based on data on blocked domains and addresses in Russia.

Community Tools

Tools and integrations built by the community around 3x-ui.

  • terraform-provider-3x-ui (License: MIT): Manage inbounds, clients, panel settings, and Xray configuration as code with Terraform / OpenTofu.
  • 3X-UI Manager (License: MIT): Native Android client for 3x-ui — dashboard, inbounds, clients with QR sharing, nodes and multi-panel management. Available on F-Droid.

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