* fix(reality): make the REALITY target check usable on a private network The probe dials through netsafe.SSRFGuardedDialContext, so a fronting service reachable only inside the deployment (a Docker service name, a LAN address) always failed with "blocked private/internal address": the inbound itself works, because the guard sits in the probe path only, so the panel reported a red verdict on a healthy configuration. Instead of a panel-wide setting that lifts the guard for good, the guard is now lifted per probe and only after the operator confirms the local-network warning in a modal; the verdict keeps privateTarget set, so a passing local check stays a warning rather than a green success. The probe also sent the target host as SNI. Clients dial the target but send a name from serverNames, so a fronting proxy answered with its default certificate — a Traefik front reached as "traefik" reported "certificate is valid for <hash>.traefik.default, not traefik" on a deployment whose clients get a valid chain. The panel now sends the first configured serverName as SNI and the certificate is verified against it; empty serverNames keeps the old fallback. The reported target stays the dialled address, so a passing check no longer rewrites the target field with the SNI host. The result panel reports what was actually seen: the SNI used, the certificate subject/issuer and its expiry stay visible when the chain is untrusted (with "Not trusted" appended) instead of being replaced by that verdict alone. Certificate names are copied into the SNI field only when the chain verified — the names on a proxy's default certificate would otherwise become the SNI of the next check. The bulk/CIDR scanner keeps the guard unconditionally: honouring the opt-in there would turn it into an internal network scanner. * fix(reality): recover from a stale SNI and report a refused address reliably Review follow-up on the REALITY target check. The probe sends the stored serverNames as SNI, and the panel only wrote names back when the whole chain verified, so switching Target while the SNI field still held the previous target's names failed every rescan: the new target's real names came back from the probe but were discarded with the verdict. The certificate is now checked in two steps — chain first, then the name — and a trusted chain presented for other names is enough for the panel to offer those names, so the next scan passes. Picking a row in the bulk scanner replaces the names outright, since keeping the previous target's SNI leaves a REALITY config that cannot work. SSRFGuardedDialContext kept the refusal only in lastErr, so on a dual-stack name a refused private address followed by a failing public one lost the sentinel and the panel silently skipped the confirmation. The refusal is now tracked separately and reported alongside the last dial error. Honouring the opt-in is logged with the target and the resolved address, since it bypasses the SSRF guard on an authenticated endpoint. The read-only SNI row in the result is labelled "SNI used" so it no longer collides with the SNI field below it, and the comment blocks are back within the 2-line limit. --------- Co-authored-by: Claude <noreply@anthropic.com>
English | فارسی | العربية | 中文 | Español | Русский | Türkçe
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, Hysteria2, 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.
- 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, 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.
- Outbound & routing — WARP, NordVPN, custom routing rules, load balancers, and outbound proxy chaining.
- Built-in subscription server with multiple output formats and custom page templates.
- Telegram bot for remote monitoring and management.
- RESTful API with in-panel Swagger documentation.
- Flexible storage — SQLite (default) or PostgreSQL.
- 13 UI languages with dark and light themes.
- Fail2ban integration for enforcing per-client IP limits.
Screenshots
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. v3.4.0):
bash <(curl -Ls https://raw.githubusercontent.com/mhsanaei/3x-ui/master/install.sh) v3.4.0
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.
For full documentation, please visit the project Wiki.
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:
- Cloud-init user-data — unattended install on any cloud (Hetzner/AWS/DO/Vultr/GCP/Azure/Oracle)
- Hetzner Cloud notes — cloud-init deployment on Hetzner
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 |
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.
Support project
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