General

What is ProxyStack?

ProxyStack is a portable Windows web stack that bundles Apache (TLS reverse proxy), an app runner, Docker management, PostgreSQL, SSL certificate management, and SentinelAI security monitoring into a single portable ZIP. It provides a modern GUI with 14 tabs for managing all aspects of your web infrastructure. No installation required — extract and run.

What operating systems does ProxyStack support?

ProxyStack runs on Windows 10 and Windows 11. It requires .NET 8 Runtime (included in the portable ZIP). The GUI is a native Windows Forms application.

Is ProxyStack free?

ProxyStack is available in two editions: Full (~210 MB, includes PostgreSQL) and Lite (~170 MB, without PostgreSQL). Contact IAVC Holdings for licensing information.

Does ProxyStack require installation?

No. ProxyStack is fully portable. Extract the ZIP to any folder and run ProxyStackGUI.exe. All configuration, certificates, logs, and data are stored within the ProxyStack folder. You can move it to a USB drive or another machine.

What editions are available?

Full Edition includes everything: Apache, PostgreSQL, win-acme, OpenSSL, SentinelAI agent, templates, and documentation. Lite Edition is the same but without the bundled PostgreSQL binaries (you can still auto-download PostgreSQL from the GUI if needed).

How do I update ProxyStack?

Click "Check for Updates" on the Dashboard. If a new version is available, click "Download & Install". The updater automatically preserves your configuration, certificates, logs, backups, and other user data while updating binaries and system files.

Apache & Reverse Proxy

How does the reverse proxy work?

ProxyStack generates Apache virtual host configurations from your proxystack.json settings. Each site can be a reverse proxy (forwarding to a backend like Node.js, Python, etc.), a static file server, or a hybrid of both. Apache handles TLS termination, WebSocket proxying, and HTTP/HTTPS routing.

Can I proxy multiple domains to different backends?

Yes. Add multiple sites in the Sites tab, each with its own domain and proxy target. ProxyStack generates separate virtual hosts for each domain. You can also define per-path proxy routes within a single site (e.g., /api goes to one backend, /ws goes to another).

Does ProxyStack support WebSockets?

Yes. Enable the WebSocket option on any site or proxy route. ProxyStack configures Apache's mod_proxy_wstunnel with proper upgrade headers for WebSocket connections.

Can I serve static files and proxy at the same time?

Yes. Set both a documentRoot and proxyRoutes on a site. Static files are served from the document root, while specific paths are proxied to backends. Enable spaFallback for single-page applications that need index.html served for all non-file routes.

Apache won't start. What should I check?

Common causes: (1) Port 80 or 443 is already in use by another application — check with netstat -ano | findstr :80. (2) Configuration error — click "Validate" in the GUI. (3) Missing or invalid SSL certificate paths. Check the Dashboard console and logs/error.log for details.

SSL Certificates

How do I get a free SSL certificate?

Go to the Certs tab, click "Let's Encrypt", enter your domain and email. ProxyStack uses the bundled win-acme ACME client to request a certificate via HTTP-01 validation. Apache is automatically stopped during validation (to free port 80) and restarted after.

Can I use self-signed certificates?

Yes. The Certs tab has a "Generate Self-Signed" option that uses the bundled OpenSSL to create a certificate and key pair. Self-signed certs are useful for local development but will show browser warnings.

What happens if I add a site with SSL but no certificate paths?

ProxyStack automatically detects matching certificate files in the certs/ folder based on the domain name. If it finds files like yourdomain.com-crt.pem and yourdomain.com-key.pem, it fills in the paths automatically and saves them to your configuration.

Where are certificates stored?

Certificates are stored in the certs/ folder within your ProxyStack directory. Win-acme generates PEM files named {domain}-crt.pem, {domain}-key.pem, and {domain}-chain.pem.

Do certificates auto-renew?

Win-acme creates a scheduled task for automatic renewal. You can also manually renew from the Certs tab. ProxyStack monitors certificate expiry dates and shows warnings in the Dashboard when certificates are approaching expiration.

Apps & Process Management

What is the App Runner?

The Apps tab lets you define backend applications (Node.js, Python, Go, etc.) that ProxyStack manages. You specify the command, working directory, and port. ProxyStack can auto-start apps, auto-restart on crash, and manage sub-processes.

What are sub-processes?

Sub-processes are additional commands that run alongside your main app. For example, you might run npx supabase start as a sub-process alongside npm run dev. Sub-processes start before the main command and stop together when the app is stopped. All commands auto-accept prompts.

Can I run multiple apps simultaneously?

Yes. Define as many apps as you need in the Apps tab. Each runs as a separate process with its own working directory and port. ProxyStack tracks all running processes and provides start/stop controls for each.

Docker & PostgreSQL

Does ProxyStack require Docker?

No. Docker integration is optional. If Docker Desktop is installed and running, ProxyStack can manage containers, images, Compose projects, and networks through the Docker tab. Without Docker, all other features work normally.

How does portable PostgreSQL work?

Click "Start PostgreSQL" in the Docker tab. If PostgreSQL isn't installed, ProxyStack auto-downloads it (~300 MB) with a progress bar. PostgreSQL runs portably from the postgres/ folder — no system-wide installation needed. Data is stored in postgres/data/.

Can I use the Database Console?

Yes. Go to the Advanced tab and open the Database Console. Enter your connection details (host, port, database, user) and execute SQL queries directly from the GUI. Results are displayed in a table format.

Configuration & Data

Where is the main configuration file?

All configuration is stored in proxystack.json in the ProxyStack root folder. This file defines sites, apps, security settings, and SentinelAI configuration. You can edit it directly or use the GUI.

What data is preserved during updates?

The auto-updater preserves: proxystack.json, proxystack.settings.json, certs/, logs/, backups/, profiles/, sites/, team.json, plugins.json, and postgres/data/. Only system binaries and templates are updated.

How do I back up my configuration?

Click "Backup" on the Dashboard. ProxyStack creates a timestamped backup in the backups/ folder containing your configuration, settings, and team data. You can also manually copy proxystack.json.

Can I use environment profiles?

Yes. Store profiles in the profiles/ folder (e.g., proxystack.development.json, proxystack.production.json). Switch between profiles from the Security tab's Environment dropdown.

Security & Monitoring

What security features does ProxyStack include?

ProxyStack includes: HSTS headers, X-Frame-Options, X-Content-Type-Options, XSS protection headers, IP whitelist/blacklist, REST API authentication, team-based access control (Admin, Developer, Operator, Viewer roles), encrypted secrets vault, and SentinelAI integration for endpoint security.

Does ProxyStack have a REST API?

Yes. Enable it from the Security tab ("Enable REST API on port 9090"). Endpoints include: /api/status, /api/health, /api/config, /api/sites, /api/apps, /api/apache/start, /api/apache/stop, /api/apache/restart. API key authentication is available for production use.

What is the SentinelAI integration?

ProxyStack includes a SentinelAI tab that connects to your SentinelAI dashboard for real-time security monitoring. You can view agents, threats, and security status directly from the ProxyStack GUI. The SentinelAI Windows agent can also be launched from ProxyStack.

How do alerts work?

ProxyStack can send alerts via Slack webhooks and email (SMTP) when services go down or health checks fail. Configure alert channels in the Security tab. Alerts have a 5-minute cooldown to prevent spam from flapping services.

Advanced Features

What are plugins?

ProxyStack has a Plugin Marketplace in the Advanced tab. Plugins extend functionality with features like authentication middleware, caching layers, rate limiting, and more. Install, configure, and manage plugins from the GUI.

Does ProxyStack support API gateway features?

Yes. The Advanced tab includes API versioning (/v1, /v2), path prefix routing, per-version rate limiting, request/response header rewriting, and URL rewriting rules.

What observability features are available?

The Observability tab provides request tracing, performance metrics, and a service dependency graph showing how your sites and backends are connected. Metrics can be exported via the Metrics Exporter plugin.

Can multiple team members use ProxyStack?

Yes. The Team tab supports multiple users with role-based access control: Admin (full access), Developer (manage sites/apps), Operator (start/stop services), and Viewer (read-only). All actions are logged in an audit trail.