To adapt the Nginx configuration for DirectAdmin with OpenLiteSpeed, you'll need to:

1. Translate the Nginx configuration into OpenLiteSpeed's format.
2. Add specific directives for handling WebSockets.

Here’s how to approach the problem and the required changes:

Step 1: DirectAdmin and OpenLiteSpeed Basics

• DirectAdmin: A web hosting control panel. When using OpenLiteSpeed with DirectAdmin, configurations are typically done through the DirectAdmin Custom HTTPD feature or directly in OpenLiteSpeed's web admin interface.
• OpenLiteSpeed: Uses XML-based configuration files or a web admin interface for settings. Unlike Nginx, OpenLiteSpeed requires creating listeners and context mappings explicitly.

Step 2: Convert Nginx Config to OpenLiteSpeed

For the given Nginx config:

Nginx Config Equivalent in OpenLiteSpeed:

1. Set Up a Listener:
   OpenLiteSpeed listens for traffic on port 80 by default. If not configured, add a listener in the OpenLiteSpeed Web Admin under Listeners.

2. Virtual Host Configuration:
   In the OpenLiteSpeed Web Admin, navigate to your Virtual Host settings. Add a Rewrite Rule and a Context to handle WebSocket requests.

Example OpenLiteSpeed Configuration:

# OpenLiteSpeed Configuration for example.com

# Listener for HTTP traffic
listener Default {
    address *:80
    secure 0
}

# Virtual Host Config
virtualHost Example {
    vhRoot /path/to/your/site
    domain example.com
    enableGzip 1

    # Rewrite rules
    rewrite {
        enable 1
        rewriteFile /path/to/your/site/.htaccess
    }

    # Add a context for WebSocket support
    context /live/websocket {
        type proxy
        uri http://127.0.0.1:8000
        allowBrowse 1

        # Enable WebSocket headers
        addResponseHeader Upgrade $http_upgrade
        addResponseHeader Connection "Upgrade"
    }

    # Default context for other paths
    context / {
        type proxy
        uri http://127.0.0.1:8000
        allowBrowse 1
    }
}

Step 3: Enable WebSockets

To ensure WebSockets work, you need to:

1. Enable HTTP/1.1: OpenLiteSpeed uses HTTP/1.1 by default for proxying, but confirm it explicitly in the proxy settings.
2. Add Upgrade Headers:
   • Upgrade and Connection: Upgrade are essential for WebSocket support.
   • These headers are added in the Context configuration for /live/websocket.

Step 4: Applying Changes via DirectAdmin

In DirectAdmin, you can modify OpenLiteSpeed's configuration as follows:

1. Access OpenLiteSpeed's Admin Panel:
   • Log in at http://your-server:7080 (default port for OpenLiteSpeed admin panel).
2. Navigate to Virtual Hosts:
   • Go to Virtual Hosts → Select your virtual host (e.g., example.com).
3. Add Context for /live/websocket:
   • Under Context, add a Proxy context.
   • Set URI to http://127.0.0.1:8000.
   • Add Upgrade and Connection: Upgrade headers under Headers.
4. Modify Rewrite Rules:
   • Add a rewrite rule to handle WebSocket routes if needed.

Testing the Configuration

1. Restart OpenLiteSpeed after saving changes:

   service lsws restart

2. Test the /live/websocket route with tools like curl or browser dev tools to confirm WebSocket requests are being forwarded correctly.